I am trying to find QR codes on PDFs that are scanned page images. My code works fine for scans produced by my OfficeJet and for page images produced out of Acrobat but scans produced by my client's eCopy ShareScan device (according to the PDF metadata) are not usable.
Looking into the PDF data stream, each page is represented by two images, a "bg" image that is what I would expect for the page image, but very faint grey, and a "fg" image that reflects the page content but with lots of grey and ghosting. The PDF renderer must be combining these two images in some way to provide the clear image I see in Acrobat. Is there something I can find in the PDF data stream that will tell me how these images are combined and, if so, can anyone point me in the right direction for processing these images? I am pretty new to Java image processing so I'm not sure where to look or what to look for. The images themselves are repored by PDFBox as PDJpeg objects. I can provide a sample PDF page if it's needed. Thanks, Eliot -- Eliot Kimber Senior Solutions Architect, RSI Content Solutions "Bringing Strategy, Content, and Technology Together" Main: 512.554.9368 www.rsicms.com www.rsuitecms.com Book: DITA For Practitioners, from XML Press, http://xmlpress.net/publications/dita/practitioners-1/
