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 Using the function fu_alter_contrast on a scanned document always returns -5 regardless of what we set the degree to. Can you explain why this happens and is there a workaround?
The contrast adjust only works on images of 8bpp or better. That is, it does not work with bitonal or 1bpp images. You would need to promote to 8bpp, convert to gray, then perform your image process...
- Can VisImage for PowerBuilder handle multiple page scanning of documents, and do batch scanning jobs?
The VisImage for PowerBuilder toolkit can support multi-page scanning provided that the TWAIN drivers for the scanner allow for programmatically setting the necessary TWAIN capabilities. The ...
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