c++ decode CCITT encoded images in pdfs
I'm trying to extract all images out of PDF files in C++. I'm stuck in decoding CCITT encoded images.
Does anyone know an opensourced code for this?
I use the ImageMagick Magick++ Library, is开发者_开发知识库 it possible to do the decoding with this library, too?
Thanks for your help!
CCITT is one of the encodings TIFF supports, though in a PDF file the CCITT images are probably raw data.
You can convert a raw CCITT image into a Tiff image using Fax2Tiff. It should be easy enough to work with the image once it is encoded as a Tiff.
Fax2Tiff is part of LibTiff. See LibTiff Source
Or you can append a header on it and treat it as a tiff file.
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