Finishing Up with the Refine Brush
The Refine Brush can be used in tight spaces to “recover” colors from the Keep list that were accidentally removed. Click on the tool to select it, and open its Inspector options. Zoom in and choose a brush size that corresponds to the regions you need to brush over, select the mode “Paint In,” and select the “Use Dropper Colors” and “Use Local Colors” to ensure the most accurate results. You may want to experiment. Once you brush over the edges that were removed and you pick up the stylus, after a moment the “keep pixels” should be unmasked (Figure 11).
Figure 11 The Refine Brush helps clean up areas that were accidentally masked (left), usually along the boundary of your Magic Brush strokes. The finished result is at right.
Once you’re satisfied that any accidentally masked colors have been recovered, click the Apply button at the bottom right of the Perfect Mask window; your changes will be rendered into the image, and the finished shot will open into Photoshop where you can check the mask to make sure it does not have any gray areas or missing spots. If it does, you can paint onto the layer (make sure the layer mask is selected) with a black brush to ensure the pixels you want to hide are made 100% transparent.
Figure 12 The finished image in Photoshop with the final mask and adjustment layer used to tweak the brightness of the new sky.