Invert colors

Inverts the intensity of each color channel. For example in an ordinary 8-bit color image, the value c of each color channel is replaced with 255 - c. More precisely, the conversion formula is $y = Max - x + Min$, where $x$ is the input pixel, $Max$ is the channel max, $Min$ is the channel min and $y$ is the output pixel.

image
Input image.

image
Output image.