Luminous Landscape have today published the first in a new series of advanced Photoshop techniques, written by Glenn E. Mitchell II.

“Clipped channels are serious. The enlarged view of the daylily in Figure 2 has a reddish cast from clipped red channel. The yellow tones are also not continuous. Posterization is evident as the eye moves from the edge toward the center of the flower.

Once a channel is clipped, the customary advice is that information is lost and little or nothing can be done about it.

This article presents a technique that can rescue many images: the use of a saturation mask. Saturation masks are grayscale images that transition from black for the least saturated colors to white for the most saturated colors. Saturation masks are perfect for restoring images with severe saturation problems, such as clipped channels.”

Website: Luminous Landscape - Restore Those Clipped Channels