Browse / Retouching Category

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   Removing Dark Noise

   Posted by kasrak on Jan 7, 2007

   Learn a fast and effective technique for removing hot pixels (dark current noise) from nighttime and long exposure digital camera images.

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   Creating a Neutral Density Filter

   Posted by kasrak on Jan 7, 2007

   In this tutorial I'll show you how to create a "digital" neutral density (ND) filter for your image in The GIMP. These filters have the effect of reducing the exposure over part of the image being taken in either a graduated or abruptly graduated (split) way.

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   Removing Haze

   Posted by kasrak on Jan 7, 2007

   Here's a simple technique you can use to improve (if not eliminate) problem haze of both varieties in your photographs.

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   Smart Sharpening

   Posted by kasrak on Jan 6, 2007

   This technique does two "smart" things to avoid sharpening noise: sharpens only the luminosity data in the image, thus avoiding shifts to the hue and saturation components (which affect color), and targets only the edges in the image, avoiding large smooth areas that may contain noise.

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   Reducing CCD Noise

   Posted by kasrak on Jan 6, 2007

   Images captured by a CCD or CMOS imaging chip will often have some noise present. This noise typically can be seen as RGB "flecks", especially noticable in the in the shadow areas of an image.This tutorial will help you improve the image.

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   Red Eye Removal Using Channels

   Posted by kasrak on Dec 28, 2006

   A method to somewhat get rid of red eye in your photographs by using channels and the Dodge and Burn tool.

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