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January 2004
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2004.01.19 19:15 "Re: libtiff and CALS files...", by Phillip Crews
At 12:32 2004·01·16 -0500, Bill Hess wrote: > Can the libtiff tools work with CALS files? > If not, are there any other open source libs out there for CALS? > Any good references on the web describing the differences between TIFF and > CALS files??? IIRC, CALS Type 1 files are CCITT Group 4 encoded, with their own (2KB?) header. I wrote some code at one point that would retrieve the pertinent values (width, height, resolution, etc) from the CALS header, and create a temporary TIFF file using these parameters and use TIFFWriteRawStrip to write the Group 4 data to the file. Then I used libtiff to read the temporary TIFF file and decompress the data. I don't have any experience with other than Type 1 CALS files. - Phillip