image.negative()
Inverts the pixel values of a image.
image.negative( )
Returns: Image
This function does not take any arguments.
Examples
img=imageRead("https://avatars1.githubusercontent.com/u/10973141?s=280&v=4");
cfimage(action="writeToBrowser",source=img);
img.Negative();
cfimage(action="writeToBrowser",source=img);