Thread: Enhancing text in scanned images
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Old 03-09-2012, 08:09 PM   #15
rkomar
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Quote:
Originally Posted by frostschutz View Post
I did that for a text that had mixed text/images once. Except I didn't write a Java application - I just used Gimp. Lots of manual labor but it's worth the effort when you can adjust the contrast of each image individually. And having everything but the images in pure black&white helps a lot getting the PDF down to managable size.
I left the scans as grayscale data (with the text areas forced to be black (0) or white (255)). So, there was some savings in size because the black and white areas compressed better than the grayscale, but it wasn't huge. Were you able to store the text as monochrome (i.e. 1-bit) data for better size savings? If so, how? Could you save them as different layers on the page?
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