On Sun, 12 Jan 2014, Stanislaw Gasior wrote:

I try use tesseract with .png file.

I have some errors (use ocrgui):
Tesseract Open Source OCR Engine v3.02.02 with Leptonica
Error in pixReadStreamBmp: cannot read compressed BMP
files
Error in pixReadStream: bmp: no pix returned
Error in pixRead: pix not read
Unsupported image type.

Leptonica thinks the file is in a compressed BMP format
rather than PNG.  If it is really supposed to be in PNG
format, then the file is probably corrupted.  If it is
supposed to be a BMP file, then you can convert it to
PNG using ImageMagick's convert program before passing
it to tesseract.

Cheers,
Rob Komar

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