More materials by author Denny Tang

Editor's Pick in Photoshop Tutorials, March 2005
Remove dithering from images and GIF files.
Easily correct the temperature of any photograph. Fixing the temperature will also slightly fix the white balance and exposure.
Sharpening shadows reveal details without sharpening highlights. Clouds and light coloured skins remain soft while dark areas are sharper and more visible.
Increase contrast and saturation of skies using a gradient adjustment layer without underexposing dark areas.
Learn how to brighten images without overexposing bright areas using a pen tablet.
Correct the vertical and horizontal perspectives of your photographs.
Learn how to use the Solarize filter to reduce shadows and make an image more equalized.
Editor's Pick in Photo Editing, March 2005
Most people don't have perfectly white teeth and it can sometimes turn into the center of attention in a photograph. This tutorial will teach you how to make teeth whiter.
Increase contrast and saturation without overexposing the image.
Simulate the effects of the automatic white balance feature found in digital cameras.