Search

1. Photshop&sharpen option

   

   Topic by sama.van · Nov 2009 · Home› Technical Talk

   Does someone know why using the sharpen option in Photoshoo it will add sometime some blue pixels between 2 zone of very different color? I would like to understand technicaly what heppened or what Photoshop will do when it converts the normal picture pixels to the Sharpen version. Maybe could help me to erase the problem…

2. Re: Photshop&sharpen option

   

   Reply by sama.van · Nov 2009 · Home› Technical Talk

   Argh... Unsharp Mask doesn't exist in Photoshop CS1 :D

3. Re: Photshop&sharpen option

   

   Reply by SyncViewS · Nov 2009 · Home› Technical Talk

   Well, I can be wrong, but I give my explanation: it boosts the chromatic contrast, thus making the edge more visible. The eye reads well variations in lightness and chroma. So if you want to make something crisper, you need to boost those contrasts. If you have light gray sided to dark gray and sharpen it, to boost the…

4. Re: Photshop&sharpen option

   

   Reply by OBlastradiusO · Nov 2009 · Home› Technical Talk

   Use unsharp mask.

5. Re: Photshop&sharpen option

   

   Reply by JohnnySix · Nov 2009 · Home› Technical Talk

   Could you just duplicate the layer , make it greyscale, set the new sharpened grayscale to luminosity blending mode then paint in the areas you want sharpened with a layer mask? You'd not get any colour interference then, and if I remember correctly, this should work in at least versions 6, 7 and CS 1. :) I'd suggest…

6. Re: Photshop&sharpen option

   

   Reply by IxenonI · Nov 2009 · Home› Technical Talk

   try sharpening each channel on its own instead of RGB at once...

7. Re: Photshop&sharpen option

   

   Reply by sama.van · Nov 2009 · Home› Technical Talk

   Thanks!!! Writting your words in google I got this : http://www.cambridgeincolour.com/tutorials/unsharp-mask.htm