Here are some flowers converted to human and honeybee vision. Where our eyes have three receptor types sensitive to red, green and blue, honeybees have receptors for green, blue and ultraviolet, shifting the wavelength range they can see compared to us. The flowers that try to attract bees and other pollinators often have details that can only be seen with UV-vision.
I took all of these photographs with a Samsung NX1000 converted to full spectrum and a Nikkor EL 80mm lens (with a helicoid for focussing), or a Novoflex Noflexar 35mm. Visible shots were through a Baader UV/IR cut filter and UV shots were through a Baader Venus-U filter. The photographs were normalised against a grey standard and converted to cone-catch quanta using my custom written software. Human vision is CIE XYZ cone catch, while honeybee vision is medium-wave, short-wave and ultraviolet conecatch. The linear images were then square-root transformed so that they display nicely on monitors.
This snowdrop is interesting, with the green section of the flower having strong long-wave reflection for bees in comparison to the green leaves.