Thanks for all these answers. Heathenx, next time I want to embed a QR in an SVG document, I'll give the QR generator a try ! Actually, I already had a QR bitmap in hand, so it was natural for me to try to vectorize it. Resizing the original bitmap in an external editor (with no antialiasing, of cou...

Some details on what I tried : - Brightness cutoff, threshold=1, invert image : the preview is what I expect, but when I click OK nothing happens (no shape is created) - Edge detection : not appropriate - Color quantization : not appropriate - Brightness steps, scans=2, smooth disabled : the preview...

Hi, I am trying to convert a bitmap image of a QR code (2D barcode) to a vector graphics. I regularly use the the "vectorize" feature of Inkscape with excellent results, for many kind of images. But for that one, I can't find the right configuration. Here is an example of my attempts : vec...