Hello Rebecca,This looks to be a known issue and it's related to MapInfo Pro v17.0 introducing 32-bit rendering by default. This results in some images becoming washed out or faded when rendered in v17.0.To resolve this, please follow the instructions in the knowledgebase article below.
Hope this helps!
In case anyone is wondering where this is up to...I have followed the instructions to correct the imageIt did nothingI tested it again with a single image (as opposed to my seamless table)It did nothingI thought I'd fiddle with the other settings under Advanced Colour (not available for seamless tables) and changing the Display Mode from RGB to Pseudo Color and then back to RGB - FIXED IT!!
The corrected file stayed corrected when reopened, and inside the seamless table when all the other pieces stayed uncorrected.
The rest of the image files on this pc need to be adjusted one at a time the same way to get the fix to stick. It is time consuming and annoying but it works for now.
Hi Rebecca,Are your images in ECW or JPEG2000 format?An issue has just come to my attention for images in that format, which produces a result very similar to the screen-shot you posted. If these images have variable opacity values then, by default, the ECW/JP2 driver converts pixels that are more than 50% transparent to empty pixels. I think we can just turn this behaviour off now because users can use the "Display alpha channel" switch. I will update this for release 17.04.However, you posted above that you fixed the problem, which tends to imply there was some kind of validity issue with the rendering XML stored in the GHX file. So maybe this transparency issue is not related to your problem.Regards,Sam.