Grayscale image depth mapping

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Old 06 June 2002   #1
Grayscale image depth mapping

How do you use a grayscale image to set up for depth map. I want to blur base on the levels of gray of an image.

http://www.btinternet.com/~d.s.w/Tutorials/pixtut1.htm

Like this tutorial
 
Old 06 June 2002   #2
Use the greyscale image that is generated from your 3d app to create a selection. This is done in the channels. Select the best one (unless you've got an alpha that has been generated) and create a selection. Then apply a guassian blur with that selection active. If it looks wrong, undo it and invert your selection then reapply the blur. I guarantee you'll have a great looking image.

The selection (obviously) protects part of your image from being blurred thus producing the depth of field look you want.

Enjoy!

~M~
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Old 01 January 2006   #3
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