Question

i’m using tesseract 3.01,i used the enum PageSegMode for page segmentation and orientation, when i used the attribute PSM_AUTO_OSD it detects the orientation of the page only when it’s rotated 90 degree to the left otherwise it fails,can any one tell me what’s the problem,thanks.

Answer 1

According to tesseractmain.cpp its suposed to be PSM_AUTO:

tesseract::PageSegMode pagesegmode = tesseract::PSM_AUTO;
// ...

tesseract::TessBaseAPI  api;
api.SetPageSegMode(pagesegmode);
// ...

Try to reproduce your problem with the cmd-line tool, and give it -psm 0 for orientation.