1. A computer-implemented method comprising: generating, using a processing device, a first transform of a color distribution histogram for an original image; generating, using the computer system, a second transform of the color distribution histogram for the original image; creating, using the computer system, a modified image based on the first transform with the second transform; and adjusting, using the computer system, pixel color in the modified image to cause a color difference between a pixel and neighboring pixels in the modified image to correspond to a color difference between respective pixels in the original image.