Small adjustments to the Curves in the Blue and Red colour channels corrected the purplish caste in the original image (top) and restored a natural colour balance (below). Article by Margaret Brown – ...

The inset Curves graph shows how control points have been added to enable the contrast in the shadow areas to be increased slightly, while the contrast in the lighter mid tones is reduced to emphasise ...

– Whether you’re an aspiring shutterbug or professional photographer, editing tools and software can make a great photo even better or improve the quality of pictures you’ve already snapped.

A higher-end feature on desktop photo-editing software, the ability to edit a photo's tone curve, is now on the Picnik online photo-editing site. Stephen Shankland worked at CNET from 1998 to 2024 ...