Thank you, Allan. Tesseract will also accept image data directly on stdin, so single scan mode should work just fine. I think it is cleaner to use stdout as opposed to stderr for filenames. I will work on a patch.
There is one possible alternative. Scanimage could emit image data to stdout using one of the multi-image formats. For example, multi-image PNM is simply the concatenation of individual PNM files. Let me know if you prefer that instead. Cheers, Jeff
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