content: package com.rsen.github.androidutilcode;
  
  import android.annotation.TargetApi;
  import android.content.Context;
  import android.content.res.Resources;
  import android.graphics.Bitmap;
  import android.graphics.Bitmap.CompressFormat;
  import android.graphics.BitmapFactory;
  import android.graphics.Canvas;
  import android.graphics.Color;
  import android.graphics.ColorMatrix;
  import android.graphics.ColorMatrixColorFilter;
  import android.graphics.LinearGradient;
  import android.graphics.Matrix;
  import android.graphics.Paint;
  import android.graphics.PorterDuff;
  import android.graphics.PorterDuffColorFilter;
  import android.graphics.PorterDuffXfermode;
  import android.graphics.Rect;
  import android.graphics.RectF;
  import android.graphics.Shader;
  import android.graphics.drawable.Drawable;
  import android.media.ExifInterface;
  import android.os.Build;
  import android.renderscript.Allocation;
  import android.renderscript.Element;
  import android.renderscript.RenderScript;
  import android.renderscript.ScriptIntrinsicBlur;
  import android.view.View;
  
  import java.io.BufferedInputStream;
  import java.io.BufferedOutputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.File;
  import java.io.FileDescriptor;
  import java.io.FileInputStream;
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  
  /**
   * <pre>
   *     author: Blankj
   *     blog  : http://blankj.com
   *     time  : 2016/8/12
   *     desc  : 图片相关工具类
   * </pre>
   */
  public class ImageUtils {
  
      private ImageUtils() {
          throw new UnsupportedOperationException("u can't instantiate me...");
      }
  
      /**
       * bitmap转byteArr
       *
       * @param bitmap bitmap对象
       * @param format 格式
       * @return 字节数组
       */
      public static byte[] bitmap2Bytes(Bitmap bitmap, CompressFormat format) {
          return ConvertUtils.bitmap2Bytes(bitmap, format);
      }
  
      /**
       * byteArr转bitmap
       *
       * @param bytes 字节数组
       * @return bitmap
       */
      public static Bitmap bytes2Bitmap(byte[] bytes) {
          return ConvertUtils.bytes2Bitmap(bytes);
      }
  
      /**
       * drawable转bitmap
       *
       * @param drawable drawable对象
       * @return bitmap
       */
      public static Bitmap drawable2Bitmap(Drawable drawable) {
          return ConvertUtils.drawable2Bitmap(drawable);
      }
  
      /**
       * bitmap转drawable
       *
       * @param res    resources对象
       * @param bitmap bitmap对象
       * @return drawable
       */
      public static Drawable bitmap2Drawable(Resources res, Bitmap bitmap) {
          return ConvertUtils.bitmap2Drawable(res, bitmap);
      }
  
      /**
       * drawable转byteArr
       *
       * @param drawable drawable对象
       * @param format   格式
       * @return 字节数组
       */
      public static byte[] drawable2Bytes(Drawable drawable, CompressFormat format) {
          return ConvertUtils.drawable2Bytes(drawable, format);
      }
  
      /**
       * byteArr转drawable
       *
       * @param res   resources对象
       * @param bytes 字节数组
       * @return drawable
       */
      public static Drawable bytes2Drawable(Resources res, byte[] bytes) {
          return ConvertUtils.bytes2Drawable(res, bytes);
      }
  
      /**
       * view转Bitmap
       *
       * @param view 视图
       * @return bitmap
       */
      public static Bitmap view2Bitmap(View view) {
          return ConvertUtils.view2Bitmap(view);
      }
  
      /**
       * 计算采样大小
       *
       * @param options   选项
       * @param maxWidth  最大宽度
       * @param maxHeight 最大高度
       * @return 采样大小
       */
      private static int calculateInSampleSize(BitmapFactory.Options options, int maxWidth, int maxHeight) {
          if (maxWidth == 0 || maxHeight == 0) return 1;
          int height = options.outHeight;
          int width = options.outWidth;
          int inSampleSize = 1;
          while ((height >>= 1) >= maxHeight && (width >>= 1) >= maxWidth) {
              inSampleSize <<= 1;
          }
          return inSampleSize;
      }
  
      /**
       * 获取bitmap
       *
       * @param file 文件
       * @return bitmap
       */
      public static Bitmap getBitmap(File file) {
          if (file == null) return null;
          InputStream is = null;
          try {
              is = new BufferedInputStream(new FileInputStream(file));
              return BitmapFactory.decodeStream(is);
          } catch (FileNotFoundException e) {
              e.printStackTrace();
              return null;
          } finally {
              CloseUtils.closeIO(is);
          }
      }
  
      /**
       * 获取bitmap
       *
       * @param file      文件
       * @param maxWidth  最大宽度
       * @param maxHeight 最大高度
       * @return bitmap
       */
      public static Bitmap getBitmap(File file, int maxWidth, int maxHeight) {
          if (file == null) return null;
          InputStream is = null;
          try {
              BitmapFactory.Options options = new BitmapFactory.Options();
              options.inJustDecodeBounds = true;
              is = new BufferedInputStream(new FileInputStream(file));
              BitmapFactory.decodeStream(is, null, options);
              options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
              options.inJustDecodeBounds = false;
              return BitmapFactory.decodeStream(is, null, options);
          } catch (FileNotFoundException e) {
              e.printStackTrace();
              return null;
          } finally {
              CloseUtils.closeIO(is);
          }
      }
  
      /**
       * 获取bitmap
       *
       * @param filePath 文件路径
       * @return bitmap
       */
      public static Bitmap getBitmap(String filePath) {
          if (StringUtils.isSpace(filePath)) return null;
          return BitmapFactory.decodeFile(filePath);
      }
  
      /**
       * 获取bitmap
       *
       * @param filePath  文件路径
       * @param maxWidth  最大宽度
       * @param maxHeight 最大高度
       * @return bitmap
       */
      public static Bitmap getBitmap(String filePath, int maxWidth, int maxHeight) {
          if (StringUtils.isSpace(filePath)) return null;
          BitmapFactory.Options options = new BitmapFactory.Options();
          options.inJustDecodeBounds = true;
          BitmapFactory.decodeFile(filePath, options);
          options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
          options.inJustDecodeBounds = false;
          return BitmapFactory.decodeFile(filePath, options);
      }
  
      /**
       * 获取bitmap
       *
       * @param is 输入流
       * @return bitmap
       */
      public Bitmap getBitmap(InputStream is) {
          if (is == null) return null;
          return BitmapFactory.decodeStream(is);
      }
  
      /**
       * 获取bitmap
       *
       * @param is        输入流
       * @param maxWidth  最大宽度
       * @param maxHeight 最大高度
       * @return bitmap
       */
      public static Bitmap getBitmap(InputStream is, int maxWidth, int maxHeight) {
          if (is == null) return null;
          BitmapFactory.Options options = new BitmapFactory.Options();
          options.inJustDecodeBounds = true;
          BitmapFactory.decodeStream(is, null, options);
          options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
          options.inJustDecodeBounds = false;
          return BitmapFactory.decodeStream(is, null, options);
      }
  
      /**
       * 获取bitmap
       *
       * @param data   数据
       * @param offset 偏移量
       * @return bitmap
       */
      public Bitmap getBitmap(byte[] data, int offset) {
          if (data.length == 0) return null;
          return BitmapFactory.decodeByteArray(data, offset, data.length);
      }
  
      /**
       * 获取bitmap
       *
       * @param data      数据
       * @param offset    偏移量
       * @param maxWidth  最大宽度
       * @param maxHeight 最大高度
       * @return bitmap
       */
      public static Bitmap getBitmap(byte[] data, int offset, int maxWidth, int maxHeight) {
          if (data.length == 0) return null;
          BitmapFactory.Options options = new BitmapFactory.Options();
          options.inJustDecodeBounds = true;
          BitmapFactory.decodeByteArray(data, offset, data.length, options);
          options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
          options.inJustDecodeBounds = false;
          return BitmapFactory.decodeByteArray(data, offset, data.length, options);
      }
  
      /**
       * 获取bitmap
       *
       * @param res 资源对象
       * @param id  资源id
       * @return bitmap
       */
      public static Bitmap getBitmap(Resources res, int id) {
          if (res == null) return null;
          return BitmapFactory.decodeResource(res, id);
      }
  
      /**
       * 获取bitmap
       *
       * @param res       资源对象
       * @param id        资源id
       * @param maxWidth  最大宽度
       * @param maxHeight 最大高度
       * @return bitmap
       */
      public static Bitmap getBitmap(Resources res, int id, int maxWidth, int maxHeight) {
          if (res == null) return null;
          BitmapFactory.Options options = new BitmapFactory.Options();
          options.inJustDecodeBounds = true;
          BitmapFactory.decodeResource(res, id, options);
          options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
          options.inJustDecodeBounds = false;
          return BitmapFactory.decodeResource(res, id, options);
      }
  
      /**
       * 获取bitmap
       *
       * @param fd 文件描述
       * @return bitmap
       */
      public static Bitmap getBitmap(FileDescriptor fd) {
          if (fd == null) return null;
          return BitmapFactory.decodeFileDescriptor(fd);
      }
  
      /**
       * 获取bitmap
       *
       * @param fd        文件描述
       * @param maxWidth  最大宽度
       * @param maxHeight 最大高度
       * @return bitmap
       */
      public static Bitmap getBitmap(FileDescriptor fd, int maxWidth, int maxHeight) {
          if (fd == null) return null;
          BitmapFactory.Options options = new BitmapFactory.Options();
          options.inJustDecodeBounds = true;
          BitmapFactory.decodeFileDescriptor(fd, null, options);
          options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
          options.inJustDecodeBounds = false;
          return BitmapFactory.decodeFileDescriptor(fd, null, options);
      }
  
      /**
       * 缩放图片
       *
       * @param src       源图片
       * @param newWidth  新宽度
       * @param newHeight 新高度
       * @return 缩放后的图片
       */
      public static Bitmap scale(Bitmap src, int newWidth, int newHeight) {
          return scale(src, newWidth, newHeight, false);
      }
  
      /**
       * 缩放图片
       *
       * @param src       源图片
       * @param newWidth  新宽度
       * @param newHeight 新高度
       * @param recycle   是否回收
       * @return 缩放后的图片
       */
      public static Bitmap scale(Bitmap src, int newWidth, int newHeight, boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Bitmap ret = Bitmap.createScaledBitmap(src, newWidth, newHeight, true);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 缩放图片
       *
       * @param src         源图片
       * @param scaleWidth  缩放宽度倍数
       * @param scaleHeight 缩放高度倍数
       * @return 缩放后的图片
       */
      public static Bitmap scale(Bitmap src, float scaleWidth, float scaleHeight) {
          return scale(src, scaleWidth, scaleHeight, false);
      }
  
      /**
       * 缩放图片
       *
       * @param src         源图片
       * @param scaleWidth  缩放宽度倍数
       * @param scaleHeight 缩放高度倍数
       * @param recycle     是否回收
       * @return 缩放后的图片
       */
      public static Bitmap scale(Bitmap src, float scaleWidth, float scaleHeight, boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Matrix matrix = new Matrix();
          matrix.setScale(scaleWidth, scaleHeight);
          Bitmap ret = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 裁剪图片
       *
       * @param src    源图片
       * @param x      开始坐标x
       * @param y      开始坐标y
       * @param width  裁剪宽度
       * @param height 裁剪高度
       * @return 裁剪后的图片
       */
      public static Bitmap clip(Bitmap src, int x, int y, int width, int height) {
          return clip(src, x, y, width, height, false);
      }
  
      /**
       * 裁剪图片
       *
       * @param src     源图片
       * @param x       开始坐标x
       * @param y       开始坐标y
       * @param width   裁剪宽度
       * @param height  裁剪高度
       * @param recycle 是否回收
       * @return 裁剪后的图片
       */
      public static Bitmap clip(Bitmap src, int x, int y, int width, int height, boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Bitmap ret = Bitmap.createBitmap(src, x, y, width, height);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 倾斜图片
       *
       * @param src 源图片
       * @param kx  倾斜因子x
       * @param ky  倾斜因子y
       * @return 倾斜后的图片
       */
      public static Bitmap skew(Bitmap src, float kx, float ky) {
          return skew(src, kx, ky, 0, 0, false);
      }
  
      /**
       * 倾斜图片
       *
       * @param src     源图片
       * @param kx      倾斜因子x
       * @param ky      倾斜因子y
       * @param recycle 是否回收
       * @return 倾斜后的图片
       */
      public static Bitmap skew(Bitmap src, float kx, float ky, boolean recycle) {
          return skew(src, kx, ky, 0, 0, recycle);
      }
  
      /**
       * 倾斜图片
       *
       * @param src 源图片
       * @param kx  倾斜因子x
       * @param ky  倾斜因子y
       * @param px  平移因子x
       * @param py  平移因子y
       * @return 倾斜后的图片
       */
      public static Bitmap skew(Bitmap src, float kx, float ky, float px, float py) {
          return skew(src, kx, ky, 0, 0, false);
      }
  
      /**
       * 倾斜图片
       *
       * @param src     源图片
       * @param kx      倾斜因子x
       * @param ky      倾斜因子y
       * @param px      平移因子x
       * @param py      平移因子y
       * @param recycle 是否回收
       * @return 倾斜后的图片
       */
      public static Bitmap skew(Bitmap src, float kx, float ky, float px, float py, boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Matrix matrix = new Matrix();
          matrix.setSkew(kx, ky, px, py);
          Bitmap ret = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 旋转图片
       *
       * @param src     源图片
       * @param degrees 旋转角度
       * @param px      旋转点横坐标
       * @param py      旋转点纵坐标
       * @return 旋转后的图片
       */
      public static Bitmap rotate(Bitmap src, int degrees, float px, float py) {
          return rotate(src, degrees, px, py, false);
      }
  
      /**
       * 旋转图片
       *
       * @param src     源图片
       * @param degrees 旋转角度
       * @param px      旋转点横坐标
       * @param py      旋转点纵坐标
       * @param recycle 是否回收
       * @return 旋转后的图片
       */
      public static Bitmap rotate(Bitmap src, int degrees, float px, float py, boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          if (degrees == 0) return src;
          Matrix matrix = new Matrix();
          matrix.setRotate(degrees, px, py);
          Bitmap ret = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 获取图片旋转角度
       *
       * @param filePath 文件路径
       * @return 旋转角度
       */
      public static int getRotateDegree(String filePath) {
          int degree = 0;
          try {
              ExifInterface exifInterface = new ExifInterface(filePath);
              int orientation = exifInterface.getAttributeInt(
                      ExifInterface.TAG_ORIENTATION,
                      ExifInterface.ORIENTATION_NORMAL);
              switch (orientation) {
                  default:
                  case ExifInterface.ORIENTATION_ROTATE_90:
                      degree = 90;
                      break;
                  case ExifInterface.ORIENTATION_ROTATE_180:
                      degree = 180;
                      break;
                  case ExifInterface.ORIENTATION_ROTATE_270:
                      degree = 270;
                      break;
              }
          } catch (IOException e) {
              e.printStackTrace();
          }
          return degree;
      }
  
      /**
       * 转为圆形图片
       *
       * @param src 源图片
       * @return 圆形图片
       */
      public static Bitmap toRound(Bitmap src) {
          return toRound(src, false);
      }
  
      /**
       * 转为圆形图片
       *
       * @param src     源图片
       * @param recycle 是否回收
       * @return 圆形图片
       */
      public static Bitmap toRound(Bitmap src, boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          int width = src.getWidth();
          int height = src.getHeight();
          int radius = Math.min(width, height) >> 1;
          Bitmap ret = Bitmap.createBitmap(width, height, src.getConfig());
          Paint paint = new Paint();
          Canvas canvas = new Canvas(ret);
          Rect rect = new Rect(0, 0, width, height);
          paint.setAntiAlias(true);
          canvas.drawARGB(0, 0, 0, 0);
          canvas.drawCircle(width >> 1, height >> 1, radius, paint);
          paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
          canvas.drawBitmap(src, rect, rect, paint);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 转为圆角图片
       *
       * @param src    源图片
       * @param radius 圆角的度数
       * @return 圆角图片
       */
      public static Bitmap toRoundCorner(Bitmap src, float radius) {
          return toRoundCorner(src, radius, false);
      }
  
      /**
       * 转为圆角图片
       *
       * @param src     源图片
       * @param radius  圆角的度数
       * @param recycle 是否回收
       * @return 圆角图片
       */
      public static Bitmap toRoundCorner(Bitmap src, float radius, boolean recycle) {
          if (null == src) return null;
          int width = src.getWidth();
          int height = src.getHeight();
          Bitmap ret = Bitmap.createBitmap(width, height, src.getConfig());
          Paint paint = new Paint();
          Canvas canvas = new Canvas(ret);
          Rect rect = new Rect(0, 0, width, height);
          paint.setAntiAlias(true);
          canvas.drawRoundRect(new RectF(rect), radius, radius, paint);
          paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
          canvas.drawBitmap(src, rect, rect, paint);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 快速模糊
       * <p>先缩小原图，对小图进行模糊，再放大回原先尺寸</p>
       *
       * @param context 上下文
       * @param src     源图片
       * @param scale   缩放比例(0...1)
       * @param radius  模糊半径
       * @return 模糊后的图片
       */
      public static Bitmap fastBlur(Context context, Bitmap src, float scale, float radius) {
          return fastBlur(context, src, scale, radius, false);
      }
  
      /**
       * 快速模糊图片
       * <p>先缩小原图，对小图进行模糊，再放大回原先尺寸</p>
       *
       * @param context 上下文
       * @param src     源图片
       * @param scale   缩放比例(0...1)
       * @param radius  模糊半径
       * @param recycle 是否回收
       * @return 模糊后的图片
       */
      public static Bitmap fastBlur(Context context, Bitmap src, float scale, float radius, boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          int width = src.getWidth();
          int height = src.getHeight();
          int scaleWidth = (int) (width * scale + 0.5f);
          int scaleHeight = (int) (height * scale + 0.5f);
          if (scaleWidth == 0 || scaleHeight == 0) return null;
          Bitmap scaleBitmap = Bitmap.createScaledBitmap(src, scaleWidth, scaleHeight, true);
          Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.ANTI_ALIAS_FLAG);
          Canvas canvas = new Canvas();
          PorterDuffColorFilter filter = new PorterDuffColorFilter(
                  Color.TRANSPARENT, PorterDuff.Mode.SRC_ATOP);
          paint.setColorFilter(filter);
          canvas.scale(scale, scale);
          canvas.drawBitmap(scaleBitmap, 0, 0, paint);
          if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
              scaleBitmap = renderScriptBlur(context, scaleBitmap, radius);
          } else {
              scaleBitmap = stackBlur(scaleBitmap, (int) radius, recycle);
          }
          if (scale == 1) return scaleBitmap;
          Bitmap ret = Bitmap.createScaledBitmap(scaleBitmap, width, height, true);
          if (scaleBitmap != null && !scaleBitmap.isRecycled()) scaleBitmap.recycle();
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * renderScript模糊图片
       * <p>API大于17</p>
       *
       * @param context 上下文
       * @param src     源图片
       * @param radius  模糊度(1...25)
       * @return 模糊后的图片
       */
      @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
      public static Bitmap renderScriptBlur(Context context, Bitmap src, float radius) {
          if (isEmptyBitmap(src)) return null;
          RenderScript rs = null;
          try {
              rs = RenderScript.create(context);
              rs.setMessageHandler(new RenderScript.RSMessageHandler());
              Allocation input = Allocation.createFromBitmap(rs, src, Allocation.MipmapControl.MIPMAP_NONE, Allocation
                      .USAGE_SCRIPT);
              Allocation output = Allocation.createTyped(rs, input.getType());
              ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
              if (radius > 25) {
                  radius = 25.0f;
              } else if (radius <= 0) {
                  radius = 1.0f;
              }
              blurScript.setInput(input);
              blurScript.setRadius(radius);
              blurScript.forEach(output);
              output.copyTo(src);
          } finally {
              if (rs != null) {
                  rs.destroy();
              }
          }
          return src;
      }
  
      /**
       * stack模糊图片
       *
       * @param src     源图片
       * @param radius  模糊半径
       * @param recycle 是否回收
       * @return stack模糊后的图片
       */
      public static Bitmap stackBlur(Bitmap src, int radius, boolean recycle) {
          Bitmap ret;
          if (recycle) {
              ret = src;
          } else {
              ret = src.copy(src.getConfig(), true);
          }
  
          if (radius < 1) {
              return null;
          }
  
          int w = ret.getWidth();
          int h = ret.getHeight();
  
          int[] pix = new int[w * h];
          ret.getPixels(pix, 0, w, 0, 0, w, h);
  
          int wm = w - 1;
          int hm = h - 1;
          int wh = w * h;
          int div = radius + radius + 1;
  
          int r[] = new int[wh];
          int g[] = new int[wh];
          int b[] = new int[wh];
          int rsum, gsum, bsum, x, y, i, p, yp, yi, yw;
          int vmin[] = new int[Math.max(w, h)];
  
          int divsum = (div + 1) >> 1;
          divsum *= divsum;
          int dv[] = new int[256 * divsum];
          for (i = 0; i < 256 * divsum; i++) {
              dv[i] = (i / divsum);
          }
  
          yw = yi = 0;
  
          int[][] stack = new int[div][3];
          int stackpointer;
          int stackstart;
          int[] sir;
          int rbs;
          int r1 = radius + 1;
          int routsum, goutsum, boutsum;
          int rinsum, ginsum, binsum;
  
          for (y = 0; y < h; y++) {
              rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
              for (i = -radius; i <= radius; i++) {
                  p = pix[yi + Math.min(wm, Math.max(i, 0))];
                  sir = stack[i + radius];
                  sir[0] = (p & 0xff0000) >> 16;
                  sir[1] = (p & 0x00ff00) >> 8;
                  sir[2] = (p & 0x0000ff);
                  rbs = r1 - Math.abs(i);
                  rsum += sir[0] * rbs;
                  gsum += sir[1] * rbs;
                  bsum += sir[2] * rbs;
                  if (i > 0) {
                      rinsum += sir[0];
                      ginsum += sir[1];
                      binsum += sir[2];
                  } else {
                      routsum += sir[0];
                      goutsum += sir[1];
                      boutsum += sir[2];
                  }
              }
              stackpointer = radius;
  
              for (x = 0; x < w; x++) {
  
                  r[yi] = dv[rsum];
                  g[yi] = dv[gsum];
                  b[yi] = dv[bsum];
  
                  rsum -= routsum;
                  gsum -= goutsum;
                  bsum -= boutsum;
  
                  stackstart = stackpointer - radius + div;
                  sir = stack[stackstart % div];
  
                  routsum -= sir[0];
                  goutsum -= sir[1];
                  boutsum -= sir[2];
  
                  if (y == 0) {
                      vmin[x] = Math.min(x + radius + 1, wm);
                  }
                  p = pix[yw + vmin[x]];
  
                  sir[0] = (p & 0xff0000) >> 16;
                  sir[1] = (p & 0x00ff00) >> 8;
                  sir[2] = (p & 0x0000ff);
  
                  rinsum += sir[0];
                  ginsum += sir[1];
                  binsum += sir[2];
  
                  rsum += rinsum;
                  gsum += ginsum;
                  bsum += binsum;
  
                  stackpointer = (stackpointer + 1) % div;
                  sir = stack[(stackpointer) % div];
  
                  routsum += sir[0];
                  goutsum += sir[1];
                  boutsum += sir[2];
  
                  rinsum -= sir[0];
                  ginsum -= sir[1];
                  binsum -= sir[2];
  
                  yi++;
              }
              yw += w;
          }
          for (x = 0; x < w; x++) {
              rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
              yp = -radius * w;
              for (i = -radius; i <= radius; i++) {
                  yi = Math.max(0, yp) + x;
  
                  sir = stack[i + radius];
  
                  sir[0] = r[yi];
                  sir[1] = g[yi];
                  sir[2] = b[yi];
  
                  rbs = r1 - Math.abs(i);
  
                  rsum += r[yi] * rbs;
                  gsum += g[yi] * rbs;
                  bsum += b[yi] * rbs;
  
                  if (i > 0) {
                      rinsum += sir[0];
                      ginsum += sir[1];
                      binsum += sir[2];
                  } else {
                      routsum += sir[0];
                      goutsum += sir[1];
                      boutsum += sir[2];
                  }
  
                  if (i < hm) {
                      yp += w;
                  }
              }
              yi = x;
              stackpointer = radius;
              for (y = 0; y < h; y++) {
                  // Preserve alpha channel: ( 0xff000000 & pix[yi] )
                  pix[yi] = (0xff000000 & pix[yi]) | (dv[rsum] << 16) | (dv[gsum] << 8) | dv[bsum];
  
                  rsum -= routsum;
                  gsum -= goutsum;
                  bsum -= boutsum;
  
                  stackstart = stackpointer - radius + div;
                  sir = stack[stackstart % div];
  
                  routsum -= sir[0];
                  goutsum -= sir[1];
                  boutsum -= sir[2];
  
                  if (x == 0) {
                      vmin[y] = Math.min(y + r1, hm) * w;
                  }
                  p = x + vmin[y];
  
                  sir[0] = r[p];
                  sir[1] = g[p];
                  sir[2] = b[p];
  
                  rinsum += sir[0];
                  ginsum += sir[1];
                  binsum += sir[2];
  
                  rsum += rinsum;
                  gsum += ginsum;
                  bsum += binsum;
  
                  stackpointer = (stackpointer + 1) % div;
                  sir = stack[stackpointer];
  
                  routsum += sir[0];
                  goutsum += sir[1];
                  boutsum += sir[2];
  
                  rinsum -= sir[0];
                  ginsum -= sir[1];
                  binsum -= sir[2];
  
                  yi += w;
              }
          }
          ret.setPixels(pix, 0, w, 0, 0, w, h);
          return ret;
      }
  
      /**
       * 添加颜色边框
       *
       * @param src         源图片
       * @param borderWidth 边框宽度
       * @param color       边框的颜色值
       * @return 带颜色边框图
       */
      public static Bitmap addFrame(Bitmap src, int borderWidth, int color) {
          return addFrame(src, borderWidth, color, false);
      }
  
      /**
       * 添加颜色边框
       *
       * @param src         源图片
       * @param borderWidth 边框宽度
       * @param color       边框的颜色值
       * @param recycle     是否回收
       * @return 带颜色边框图
       */
      public static Bitmap addFrame(Bitmap src, int borderWidth, int color, boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          int doubleBorder = borderWidth << 1;
          int newWidth = src.getWidth() + doubleBorder;
          int newHeight = src.getHeight() + doubleBorder;
          Bitmap ret = Bitmap.createBitmap(newWidth, newHeight, src.getConfig());
          Canvas canvas = new Canvas(ret);
          Rect rect = new Rect(0, 0, newWidth, newHeight);
          Paint paint = new Paint();
          paint.setColor(color);
          paint.setStyle(Paint.Style.STROKE);
          // setStrokeWidth是居中画的，所以要两倍的宽度才能画，否则有一半的宽度是空的
          paint.setStrokeWidth(doubleBorder);
          canvas.drawRect(rect, paint);
          canvas.drawBitmap(src, borderWidth, borderWidth, null);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 添加倒影
       *
       * @param src              源图片的
       * @param reflectionHeight 倒影高度
       * @return 带倒影图片
       */
      public static Bitmap addReflection(Bitmap src, int reflectionHeight) {
          return addReflection(src, reflectionHeight, false);
      }
  
      /**
       * 添加倒影
       *
       * @param src              源图片的
       * @param reflectionHeight 倒影高度
       * @param recycle          是否回收
       * @return 带倒影图片
       */
      public static Bitmap addReflection(Bitmap src, int reflectionHeight, boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          // 原图与倒影之间的间距
          final int REFLECTION_GAP = 0;
          int srcWidth = src.getWidth();
          int srcHeight = src.getHeight();
          Matrix matrix = new Matrix();
          matrix.preScale(1, -1);
          Bitmap reflectionBitmap = Bitmap.createBitmap(src, 0, srcHeight - reflectionHeight,
                  srcWidth, reflectionHeight, matrix, false);
          Bitmap ret = Bitmap.createBitmap(srcWidth, srcHeight + reflectionHeight, src.getConfig());
          Canvas canvas = new Canvas(ret);
          canvas.drawBitmap(src, 0, 0, null);
          canvas.drawBitmap(reflectionBitmap, 0, srcHeight + REFLECTION_GAP, null);
          Paint paint = new Paint();
          paint.setAntiAlias(true);
          LinearGradient shader = new LinearGradient(0, srcHeight,
                  0, ret.getHeight() + REFLECTION_GAP,
                  0x70FFFFFF, 0x00FFFFFF, Shader.TileMode.MIRROR);
          paint.setShader(shader);
          paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
          canvas.drawRect(0, srcHeight + REFLECTION_GAP,
                  srcWidth, ret.getHeight(), paint);
          if (!reflectionBitmap.isRecycled()) reflectionBitmap.recycle();
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 添加文字水印
       *
       * @param src      源图片
       * @param content  水印文本
       * @param textSize 水印字体大小
       * @param color    水印字体颜色
       * @param x        起始坐标x
       * @param y        起始坐标y
       * @return 带有文字水印的图片
       */
      public static Bitmap addTextWatermark(Bitmap src, String content, int textSize, int color, float x,
                                            float y) {
          return addTextWatermark(src, content, textSize, color, x, y, false);
      }
  
      /**
       * 添加文字水印
       *
       * @param src      源图片
       * @param content  水印文本
       * @param textSize 水印字体大小
       * @param color    水印字体颜色
       * @param x        起始坐标x
       * @param y        起始坐标y
       * @param recycle  是否回收
       * @return 带有文字水印的图片
       */
      public static Bitmap addTextWatermark(Bitmap src, String content, float textSize, int color, float x,
                                            float y, boolean recycle) {
          if (isEmptyBitmap(src) || content == null) return null;
          Bitmap ret = src.copy(src.getConfig(), true);
          Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
          Canvas canvas = new Canvas(ret);
          paint.setColor(color);
          paint.setTextSize(textSize);
          Rect bounds = new Rect();
          paint.getTextBounds(content, 0, content.length(), bounds);
          canvas.drawText(content, x, y + textSize, paint);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 添加图片水印
       *
       * @param src       源图片
       * @param watermark 图片水印
       * @param x         起始坐标x
       * @param y         起始坐标y
       * @param alpha     透明度
       * @return 带有图片水印的图片
       */
      public static Bitmap addImageWatermark(Bitmap src, Bitmap watermark, int x, int y, int alpha) {
          return addImageWatermark(src, watermark, x, y, alpha, false);
      }
  
      /**
       * 添加图片水印
       *
       * @param src       源图片
       * @param watermark 图片水印
       * @param x         起始坐标x
       * @param y         起始坐标y
       * @param alpha     透明度
       * @param recycle   是否回收
       * @return 带有图片水印的图片
       */
      public static Bitmap addImageWatermark(Bitmap src, Bitmap watermark, int x, int y, int alpha, boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Bitmap ret = src.copy(src.getConfig(), true);
          if (!isEmptyBitmap(watermark)) {
              Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
              Canvas canvas = new Canvas(ret);
              paint.setAlpha(alpha);
              canvas.drawBitmap(watermark, x, y, paint);
          }
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 转为alpha位图
       *
       * @param src 源图片
       * @return alpha位图
       */
      public static Bitmap toAlpha(Bitmap src) {
          return toAlpha(src, false);
      }
  
      /**
       * 转为alpha位图
       *
       * @param src     源图片
       * @param recycle 是否回收
       * @return alpha位图
       */
      public static Bitmap toAlpha(Bitmap src, Boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Bitmap ret = src.extractAlpha();
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 转为灰度图片
       *
       * @param src 源图片
       * @return 灰度图
       */
      public static Bitmap toGray(Bitmap src) {
          return toGray(src, false);
      }
  
      /**
       * 转为灰度图片
       *
       * @param src     源图片
       * @param recycle 是否回收
       * @return 灰度图
       */
      public static Bitmap toGray(Bitmap src, boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Bitmap grayBitmap = Bitmap.createBitmap(src.getWidth(),
                  src.getHeight(), Bitmap.Config.ARGB_8888);
          Canvas canvas = new Canvas(grayBitmap);
          Paint paint = new Paint();
          ColorMatrix colorMatrix = new ColorMatrix();
          colorMatrix.setSaturation(0);
          ColorMatrixColorFilter colorMatrixColorFilter = new ColorMatrixColorFilter(colorMatrix);
          paint.setColorFilter(colorMatrixColorFilter);
          canvas.drawBitmap(src, 0, 0, paint);
          if (recycle && !src.isRecycled()) src.recycle();
          return grayBitmap;
      }
  
      /**
       * 保存图片
       *
       * @param src      源图片
       * @param filePath 要保存到的文件路径
       * @param format   格式
       * @return {@code true}: 成功<br>{@code false}: 失败
       */
      public static boolean save(Bitmap src, String filePath, CompressFormat format) {
          return save(src, FileUtils.getFileByPath(filePath), format, false);
      }
  
      /**
       * 保存图片
       *
       * @param src    源图片
       * @param file   要保存到的文件
       * @param format 格式
       * @return {@code true}: 成功<br>{@code false}: 失败
       */
      public static boolean save(Bitmap src, File file, CompressFormat format) {
          return save(src, file, format, false);
      }
  
      /**
       * 保存图片
       *
       * @param src      源图片
       * @param filePath 要保存到的文件路径
       * @param format   格式
       * @param recycle  是否回收
       * @return {@code true}: 成功<br>{@code false}: 失败
       */
      public static boolean save(Bitmap src, String filePath, CompressFormat format, boolean recycle) {
          return save(src, FileUtils.getFileByPath(filePath), format, recycle);
      }
  
      /**
       * 保存图片
       *
       * @param src     源图片
       * @param file    要保存到的文件
       * @param format  格式
       * @param recycle 是否回收
       * @return {@code true}: 成功<br>{@code false}: 失败
       */
      public static boolean save(Bitmap src, File file, CompressFormat format, boolean recycle) {
          if (isEmptyBitmap(src) || !FileUtils.createOrExistsFile(file)) return false;
          System.out.println(src.getWidth() + ", " + src.getHeight());
          OutputStream os = null;
          boolean ret = false;
          try {
              os = new BufferedOutputStream(new FileOutputStream(file));
              ret = src.compress(format, 100, os);
              if (recycle && !src.isRecycled()) src.recycle();
          } catch (IOException e) {
              e.printStackTrace();
          } finally {
              CloseUtils.closeIO(os);
          }
          return ret;
      }
  
      /**
       * 根据文件名判断文件是否为图片
       *
       * @param file 　文件
       * @return {@code true}: 是<br>{@code false}: 否
       */
      public static boolean isImage(File file) {
          return file != null && isImage(file.getPath());
      }
  
      /**
       * 根据文件名判断文件是否为图片
       *
       * @param filePath 　文件路径
       * @return {@code true}: 是<br>{@code false}: 否
       */
      public static boolean isImage(String filePath) {
          String path = filePath.toUpperCase();
          return path.endsWith(".PNG") || path.endsWith(".JPG")
                  || path.endsWith(".JPEG") || path.endsWith(".BMP")
                  || path.endsWith(".GIF");
      }
  
      /**
       * 获取图片类型
       *
       * @param filePath 文件路径
       * @return 图片类型
       */
      public static String getImageType(String filePath) {
          return getImageType(FileUtils.getFileByPath(filePath));
      }
  
      /**
       * 获取图片类型
       *
       * @param file 文件
       * @return 图片类型
       */
      public static String getImageType(File file) {
          if (file == null) return null;
          InputStream is = null;
          try {
              is = new FileInputStream(file);
              return getImageType(is);
          } catch (IOException e) {
              e.printStackTrace();
              return null;
          } finally {
              CloseUtils.closeIO(is);
          }
      }
  
      /**
       * 流获取图片类型
       *
       * @param is 图片输入流
       * @return 图片类型
       */
      public static String getImageType(InputStream is) {
          if (is == null) return null;
          try {
              byte[] bytes = new byte[8];
              return is.read(bytes, 0, 8) != -1 ? getImageType(bytes) : null;
          } catch (IOException e) {
              e.printStackTrace();
              return null;
          }
      }
  
      /**
       * 获取图片类型
       *
       * @param bytes bitmap的前8字节
       * @return 图片类型
       */
      public static String getImageType(byte[] bytes) {
          if (isJPEG(bytes)) return "JPEG";
          if (isGIF(bytes)) return "GIF";
          if (isPNG(bytes)) return "PNG";
          if (isBMP(bytes)) return "BMP";
          return null;
      }
  
      private static boolean isJPEG(byte[] b) {
          return b.length >= 2
                  && (b[0] == (byte) 0xFF) && (b[1] == (byte) 0xD8);
      }
  
      private static boolean isGIF(byte[] b) {
          return b.length >= 6
                  && b[0] == 'G' && b[1] == 'I'
                  && b[2] == 'F' && b[3] == '8'
                  && (b[4] == '7' || b[4] == '9') && b[5] == 'a';
      }
  
      private static boolean isPNG(byte[] b) {
          return b.length >= 8
                  && (b[0] == (byte) 137 && b[1] == (byte) 80
                  && b[2] == (byte) 78 && b[3] == (byte) 71
                  && b[4] == (byte) 13 && b[5] == (byte) 10
                  && b[6] == (byte) 26 && b[7] == (byte) 10);
      }
  
      private static boolean isBMP(byte[] b) {
          return b.length >= 2
                  && (b[0] == 0x42) && (b[1] == 0x4d);
      }
  
      /**
       * 判断bitmap对象是否为空
       *
       * @param src 源图片
       * @return {@code true}: 是<br>{@code false}: 否
       */
      private static boolean isEmptyBitmap(Bitmap src) {
          return src == null || src.getWidth() == 0 || src.getHeight() == 0;
      }
  
      /******************************~~~~~~~~~ 下方和压缩有关 ~~~~~~~~~******************************/
  
      /**
       * 按缩放压缩
       *
       * @param src       源图片
       * @param newWidth  新宽度
       * @param newHeight 新高度
       * @return 缩放压缩后的图片
       */
      public static Bitmap compressByScale(Bitmap src, int newWidth, int newHeight) {
          return scale(src, newWidth, newHeight, false);
      }
  
      /**
       * 按缩放压缩
       *
       * @param src       源图片
       * @param newWidth  新宽度
       * @param newHeight 新高度
       * @param recycle   是否回收
       * @return 缩放压缩后的图片
       */
      public static Bitmap compressByScale(Bitmap src, int newWidth, int newHeight, boolean recycle) {
          return scale(src, newWidth, newHeight, recycle);
      }
  
      /**
       * 按缩放压缩
       *
       * @param src         源图片
       * @param scaleWidth  缩放宽度倍数
       * @param scaleHeight 缩放高度倍数
       * @return 缩放压缩后的图片
       */
      public static Bitmap compressByScale(Bitmap src, float scaleWidth, float scaleHeight) {
          return scale(src, scaleWidth, scaleHeight, false);
      }
  
      /**
       * 按缩放压缩
       *
       * @param src         源图片
       * @param scaleWidth  缩放宽度倍数
       * @param scaleHeight 缩放高度倍数
       * @param recycle     是否回收
       * @return 缩放压缩后的图片
       */
      public static Bitmap compressByScale(Bitmap src, float scaleWidth, float scaleHeight, boolean recycle) {
          return scale(src, scaleWidth, scaleHeight, recycle);
      }
  
      /**
       * 按质量压缩
       *
       * @param src     源图片
       * @param quality 质量
       * @return 质量压缩后的图片
       */
      public static Bitmap compressByQuality(Bitmap src, int quality) {
          return compressByQuality(src, quality, false);
      }
  
      /**
       * 按质量压缩
       *
       * @param src     源图片
       * @param quality 质量
       * @param recycle 是否回收
       * @return 质量压缩后的图片
       */
      public static Bitmap compressByQuality(Bitmap src, int quality, boolean recycle) {
          if (isEmptyBitmap(src) || quality < 0 || quality > 100) return null;
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          src.compress(CompressFormat.JPEG, quality, baos);
          byte[] bytes = baos.toByteArray();
          if (recycle && !src.isRecycled()) src.recycle();
          return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
      }
  
      /**
       * 按质量压缩
       *
       * @param src         源图片
       * @param maxByteSize 允许最大值字节数
       * @return 质量压缩压缩过的图片
       */
      public static Bitmap compressByQuality(Bitmap src, long maxByteSize) {
          return compressByQuality(src, maxByteSize, false);
      }
  
      /**
       * 按质量压缩
       *
       * @param src         源图片
       * @param maxByteSize 允许最大值字节数
       * @param recycle     是否回收
       * @return 质量压缩压缩过的图片
       */
      public static Bitmap compressByQuality(Bitmap src, long maxByteSize, boolean recycle) {
          if (isEmptyBitmap(src) || maxByteSize <= 0) return null;
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          int quality = 100;
          src.compress(CompressFormat.JPEG, quality, baos);
          while (baos.toByteArray().length > maxByteSize && quality >= 0) {
              baos.reset();
              src.compress(CompressFormat.JPEG, quality -= 5, baos);
          }
          if (quality < 0) return null;
          byte[] bytes = baos.toByteArray();
          if (recycle && !src.isRecycled()) src.recycle();
          return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
      }
  
      /**
       * 按采样大小压缩
       *
       * @param src        源图片
       * @param sampleSize 采样率大小
       * @return 按采样率压缩后的图片
       */
      public static Bitmap compressBySampleSize(Bitmap src, int sampleSize) {
          return compressBySampleSize(src, sampleSize, false);
      }
  
      /**
       * 按采样大小压缩
       *
       * @param src        源图片
       * @param sampleSize 采样率大小
       * @param recycle    是否回收
       * @return 按采样率压缩后的图片
       */
      public static Bitmap compressBySampleSize(Bitmap src, int sampleSize, boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          BitmapFactory.Options options = new BitmapFactory.Options();
          options.inSampleSize = sampleSize;
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          src.compress(CompressFormat.JPEG, 100, baos);
          byte[] bytes = baos.toByteArray();
          if (recycle && !src.isRecycled()) src.recycle();
          return BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
      }
  }
  