ImageAdjust

WMA link


ImageAdjust[image]

adjusts the levels in image.

ImageAdjust[image, c]

adjusts the contrast in image by c.

ImageAdjust[image, {c, b}]

adjusts the contrast c, and brightness b in image.

ImageAdjust[image, {c, b, g}]

adjusts the contrast c, brightness b, and gamma g in image.

Blur
ImagePartition