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1

The scanning we have as an example shows many artifacts which have only little difference in color or brightness. In addition there are heavy JPEG artifacts. Therefore repair tools will have a hard time to separate artifacts from important parts. For the removal of lines we can try with G'Mic > Repair > Unstrip filter of the Grey's Magic Tools plugin which ...


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Here are the steps I took: Duplicate the base layer and select the copy. Apply an edge detect filter (Filters -> Edge-Detect -> Edge...) using these settings: My goal here is to get clear contrast between my object and my background. I found Sobel worked the best and simply fiddled until I got this result. Threshold the colors (Colors -> Threshold...) ...


2

I used this technique with your sample : Duplicating the layer and in this same layer : Desaturating colours according to "Luminosity". Bightness-Contrast tool : Brightness -74 & Contrast 127. Coping the layer and applying it as a Layer Mask to this current layer. Applying the "Hard Light" to the layer mode and adjusting opacity if needed.


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For sending a document to be printed, don't use PNG as the export format. There are three reasons for this: A printing press uses CMYK, and PNG is an RGB-only format. If your document contains text, that text will be rasterized and will print at the resolution of your PNG (perhaps 300 ppi) instead of the 2800 dpi at which live text or vector information is ...


1

As others have noted, white = paper in the print world unless you request it to be otherwise. When using a specialty stock, it is often useful to have a reference background while designing and during the early in-house proofing process. For this purpose, I create a separate layer below all artwork that contains a scan of the stock or a representative ...


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If you are printing in CMYK (which most of the time you will) you will note that there is no 'white ink'. In other words, whatever is white in your file is 'transparent' when it goes to press. So what is white on your document will be 'the paper'.


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I don't believe that the option exists as print-layout software is focused on laying ink on paper. Since "white" is the absence of ink, it acts as a transparent background. Keep on mind that unless you are laying a base of ink as a spot color on top of your specialty paper, you will not have any "white" areas in your print. In fact all non-black colors will ...



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