hq2x, hq3x, hq4x scaling algos into imagemagic?
Posted: 2009-07-08T00:31:34-07:00
Has that idea ever crossed your minds? I have a feeling many people are using imagemagick to preprocess their image data for OCR purposes and this also often means scaling the image up. From my experience the hqx algos work better than anything imagemagick has to offer, for upscaling low qualtiy text images to be processed by tesseract, though it might just be a coincident (the differenc isn't huge but it is there). Implementing them should be very simple process as I read:
So just get the sources (licence is GPL) from: web archive: hiend3d and integrate to IM. So what say you?ImageMagick is free software delivered as a ready-to-run binary distribution or as source code that you may freely use, copy, modify, and distribute. Its license is compatible with the GPL. It runs on all major operating systems.
