at Politecnico di Torino we are using the release 3.0.0 of tesseract, with the standard english training. Obviously the software doesn’t recognize pages of text rotated upside down and we would not expect it does, however with surprise, it recognizes with a little worse performance text rotated of 90° counter clockwise, but not clockwise. How that is possible? We have to recognize text we don’t know in advance the orientation, and I know that Leptonica should be used for page layout analysis. However, does tesseract offers internal facilities to recognize text orientation? And if so, how to activate these facilities or at least to return tentative baselines? Giuseppe
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