Fine-Tuning the Effect
Earlier you learned that you can tone down the effect of fixing an image with the Patch tool by applying the fix to a duplicate layer and then blending the duplicate and original image together.
If you choose not to work on a duplicate layer, you can reduce the strength of the Patch fix by choosing Edit > Fade Patch Selection immediately after you’ve applied the Patch to the image. When you do this, a dialog box appears in which you can vary the opacity of the fix and preview the result by selecting the Preview checkbox.
As you work with the Patch tool, you’ll come to appreciate how good a job it does of matching the texture, lighting, and shading when patching a problem area. It generally can be counted on to create results in one or two steps that could take a long time to achieve using other tools such as the Clone Stamp tool.