Nathan Stiles , Sep 22, 2009; 12:31 p.m.
You are going to have a hard-- and I mean impossible really-- time w/ this. The specular highlight that's white, means there's no data to manipulate (all white, all black, no data). So, you have to create something from nothing.
You could sandwich a similar wood grain image in between a copy of this image to reduce the effect.
- Find an image that could reasonably fill that white area-- perhaps a crop from the upper right hand side of this one, if you must.
- Paste that image on top of this one, move it into place. Select the white part of the original image: then increase the selction slightly. Select the 2nd layer we added, inverse the selection, delete the excess part-- feather/size adjust selection to taste.
- On layer two, double click to go into the blending mode screen. This will allow us to cover only the white sections
- Adjust the blending mode sliders of the underlaying image (bottom part of the screen) on the full version of PhotoShop. Hold down alt and click the sliders to split them-- this gives an absolute clipping point, and dithers to the second point.
- Duplicate the background layer, move above Layer 2, and use it's blending sliders as before.
- This time, however, we are using the blending for this layer, not the underlying layer. We want to limit the opacity of just the white areas.
This may look hokey, I'll be honest. However, you are trying to create something from nothing, which is asking a lot. I figured I'd share something w/ you, as it may help a little-- besides, it's a good way to learn some rather seldom used features.