ScanBizCards (iPhone version) is using the Tesseract 3.0 orientation detection, works quite well - accurate in 95%+ of cases and the 5% failure cases are oftentimes because we scan business cards where there isn't a lot of text to go by + there is a lot of non-text confusing the detection.
Patrick On Feb 28, 1:35 pm, "Jimmy O'Regan" <[email protected]> wrote: > On 28 February 2011 15:17, Giuseppe Menga <[email protected]> wrote: > > > 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? > > It's a side-effect of support for Japanese, Chinese, etc. > > > 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? > > There's an orientation/script detection module in the 3.01 code, but I > haven't even tried to use it, so I couldn't say. > > -- > <Leftmost> jimregan, that's because deep inside you, you are evil. > <Leftmost> Also not-so-deep inside you. -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/tesseract-ocr?hl=en.
