![]() Thererfore we should not scale the image but adjust the print size from the printer dialog (or below in 8.). The quickest method therefore is to simply use the eraser tool to remove all those ugly shadows outside of the text (which we should spare).ĭepending on the camera resolution scaling up the image to a scanner image size will only increase the file size but will have no benefit on the image quality. We could in theory overlay a gradient fill to these regions but it may not lead to the expected results, hence may not be worth the time we would need.These shadows are hard to remove and there is not a plugin or automatic filter to help us.Remove unwanted shadows from bending, folds, or vignetting artifacts from the camera lens. Now we can select the document source with the rectangle select tool to crop the image inside of the document. The Gimp Rotate or Perspective tool will give us a visual feedback to be able to rotate or adjust the perspective of an image until the text lines are in parallel to the page. Unlike a scanner our camera may not get the source in parallel to the image borders. Rotate and crop or perspective transform the image if needed. So removing cushion artifacts may only be needed in case our source image has a lot of straight lines in the outer parts. After cropping (5.) we may not even notice them any more. There are plugins to also remove these artifacts but we may find it quicker to choose a zoom level of our camera where they are minimal only. Shadows on bent corners may no be removed without also removing parts of the text (see 6.)ĭepending on our photo lens quality and the zoom level we had used we may have some cushion artifacts leading to bending of the document's outer borders.This can quickly be done with the Gimp Colors > Levels tool where we can drag the black point (left) and the white point (right) or pick the black/white points with the color picker. ![]()
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