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07/31/2006 05:14:30 PM · #1 |
| I want to do some sharpening to a picture but I only want to sharpen the b&w info of the picture. How do I make a layer to do this. Is this possible to do? |
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07/31/2006 05:15:36 PM · #2 |
yeah make a background copy then sharpen on that and add a layermask and mask off the parts you dont want sharpened.
Message edited by author 2006-07-31 17:22:43. |
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07/31/2006 05:17:19 PM · #3 |
1.) Duplicate the image layer
2.) On the top (duplicate) layer, perform the USM
3.) Change the blend mode of the duplicate layer to "Luminosity."
4.) Change the opacity of the duplicate layer if you want to reduce the USM effect.
The above is legal in Advanced, but not in Basic.
A Basic-legal workaround is:
1.) Image>Mode>LAB Color
2.) Select the Luminosity (L) channel
3.) Perform USM to taste
4.) Image>Mode>RGB Color
The Basic-legal approach has the disadvantages of being destructive (cannot be tweaked or removed later without throwing away all intermediate edits) and the color space conversions can also have undesirable effects.
Message edited by author 2006-07-31 17:21:13. |
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07/31/2006 05:32:16 PM · #4 |
| Thanks for your quick answers. Learn somthing new on this site everyday. |
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07/31/2006 05:54:47 PM · #5 |
Why not perform the USM sharpening, then click Edit | Fade | Luminosity?
That would accomplish the same thing. And ... seems like it ought to be legal.
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