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| Edge Sharpening |
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Edge Detection
Before we can filter where the sharpening is visible, we need to find the edges of the image.
Step 6
Zoom in to about 300% so that you're able to clearly see the fine pixel-sized details. Notice the grain on the skin caused by sharpening in the photo below.
Step 7
To remove this, we'll need to create a layer mask with the edges. Activate the top layer and add a layer mask (Layer> Add Layer Mask> Reveal All).
Step 8
Make sure the layer mask is activated. The thumbnail of the layer mask in the layers window should have a white border around it. If it doesn't, click on the thumbnail to activate the layer mask.
Step 9
Now we'll copy the photo into the layer mask. With the layer mask activated, open the Apply Image tool (Image> Apply Image) and apply these settings:
Layer: Background
Channel: RGB
Invert: Unchecked
Blending: Normal
Opacity: 100%
Step 10
Add a Find Edges filter (Filter> Stylize> Find Edges) and Invert (Ctrl+I). The Find Edges filter detects the edges and we inverted the image so that the edges are opaque.
Step 11
You'll immediately notice a difference when you invert the layer mask. The skin now appears to be smooth but we're going to do some further tweaking for better results.
Rollover the image above to see the before and after effect.
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