GdPicture Imaging Forums

Hi,

we encounter a major issue with the function GdPictureImaging.ColorDetection(int, bool, bool, bool, bool) with the bool parameter RepairChars set to true. What happens is, that when saving an image using SaveAsPDF(), the scan actually changes numbers on the page (see attachments)
We assume it has to do with JBIG2 compression used in the ColorDetection function - but we are not sure.

This issue is a known issue since years, first happened on a Xerox photocopier in 2013. Since then it was clear to not use JBIG2 lossy compression. Are you still using this lossy JBIG2 compression?

The issue with lossy JBIG2 compression is described here: https://en.wikipedia.org/wiki/JBIG2

Are you aware of this issue?

Hi there,

Thank you for your feedback.

I would be needing to reproduce the issue on my end to fully understand where the issue lies here. Could you provide me with a short code project I can run on my end "as is" to replicate this behavior please?

Regards,
Hugo Cudd
Technical Support

Hi,
we created a support ticket: #54258
https://orpalis.zendesk.com/hc/en-us/requests/54258

Hi there,

Thanks for your ticket. I see our developpers have handled it on our end. They very much appreciate your feedback on this. This issue is solved for our next minor release.

We'll further update you when this is available in your ticket.

Regards,
Hugo Cudd
Technical Support