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February 23, 2012 / Chris Merck

Use GIMP to Scanify Cellphone Photos of Documents

How to make a nice-looking scan from a cell-phone photo of a document using the GIMP:

Open Image
Ctrl-L to view Layers Window
Layer > New From Visible
“Visible” Layer should be selected
Filters > Blur > Gaussian Blur
Blur Radius = 160px (for a ~2k by 2k image)
In the Layers Window, change Mode to Divide
Right-Click on the Layer called “Visible” > Merge Down
Colors > Threshold
Adjust the Black Slider to roughly 200. Tweak, looking at preview.
Zoom in by pressing “1” to examine the results.
Save!

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