3.5. Image adjustment/effects tools
The next set of tools is used to apply subtle effects or adjustments to your bitmap layers. The first two, Blur and Sharpen, work hand in hand, letting you soften or sharpen areas of your image. The next two, Dodge and Burn, let you lighten or darken areas of your image. The third tool, Smudge, lets you push pixels of your image almost as if you were finger painting.
3.5.1. Blur and Sharpen tools
The Blur tool is often used to soften or blur the focus of areas in your image. You can cover up imperfections in a skin by lightly blurring them as well. Alternatively, you can sharpen the edges of objects in your images using the Sharpen tool. This can be useful if you have a photo that is slightly out of focus ...
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