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Photoshop  Home Photoshop Photo Editing Removing Purple Fringe
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Removing Purple Fringe

Author: FotoFects More by this author

Added: Mar 30, 2005 Rating:  Average Rating: 2.93 Votes: 15 Position: 9047 of 13056Average Rating: 2.93 Votes: 15 Position: 9047 of 13056Average Rating: 2.93 Votes: 15 Position: 9047 of 13056Average Rating: 2.93 Votes: 15 Position: 9047 of 13056Average Rating: 2.93 Votes: 15 Position: 9047 of 13056 Level: Experienced Software:  Photoshop

Purple fringing is evident in photographs taken with a digital camera. Purple fringing creates purple outlines on areas of high acutance. Learn how to remove purple fringing by using an adjustment layer.
image 1 1. Open the image for editing. For this tutorial, select an image with purple fringe.
image 2 2. Duplicate the layer "Background". Using the "Levels" tool (Ctrl+L), drag the white input slider to the left of the histogram until only most of the purple fringing is visible. Click OK. Use a paint brush to paint over the areas that do not have purple fringing with the colour white. Rollover on the image in this step to see what this image looks like after applying this step.
image 3 3. Zoom into the area where purple fringing is evident.
image 4 4. Create a new "Selective Color" adjustment layer (Layer> New Adjustment Layer> Selective Color) as the top layer and apply the following properties:

Colors: Reds
Black: -100%

Colors: Yellows
Black: -50%

Colors: Greens
Black: -100

Colors: Cyan
Blacks: -100

Colors: Blue
Blacks: 0

Click OK.

image 5 5. Create a new "Hue/Saturation" adjustment layer (Layer> New Adjustment Layer> Hue/Saturation) and set the "Saturation" of the "Blues" to "-100" and the "Saturation of the "Yellows" to "-50". Click

Click OK.

image 6 6. With the "Hue/Saturation" adjustment layer selected, use the "Apply Image" tool (Image> Apply Image) to apply the following properties:

Mask: Checkmarked
Layer: Layer 1
Channel: Gray

Click OK.

Removing Purple Fringe Tutorial: Final Result 7. Delete the middle 2 layers so that there is only a layer named "Background" and a "Hue/Saturation" adjustment layer. The purple fringing is now removed. Rollover the image on the left of this step to see the original image before this technique was applied.

By creating a new adjustment layer with a layer mask, only the colours produced by the purple fringe are edited. For many occasions it is possible to just set the saturation of the "Blues" to "-100" and the "Yellows" to "-50" using the "Hue/Saturation" tool, but that method will usually affect other areas of similar colours.



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