Bug 473090

Created attachment 160782 [details]
Old vue xstream render

SUMMARY
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When opening a tif file (with no canvas size set?) you can't see the image or resize the canvas

STEPS TO REPRODUCE
1. open provided file
2. choose image->Resize Canvas
3. try to resize the canvas

OBSERVED RESULT
When the file is opened no image or error message is displayed, but if you roll the mouse over the background layer(only layer) you get a preview of the image. If you try to resize the canvas the dimensions are 0 x 0 and can't be edited. If you look at the image properties the resolution is 0.000000 ppi. The image dimensions and file size are displayed correctly below the canvas but the pixel to canvas size slider shows 9000%. Saving the file doesn't fix it or make it editable. Opening it in another image editor and saving it fixes the problem

I'm seeing the same behavior in the 5.2 beta


EXPECTED RESULT
For the image to open for editing like it does in windows paint, photoshop, etc


SOFTWARE/OS VERSIONS
Windows: windows 10 pro 22H2 Build 19045.1889
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
These files are 12 year old Eon Vue xstream renders and I suspect some of the image data, like resolution, where not stored properly by the render engine. This isn't a bug as much as an exception recognizing/handling issue, like, if the document opens, has pixel dimensions, but no canvas dimensions, warn the user and offer to set the canvas dimensions to match the pixel dimensions. Or just do that automatically.

I've attached one of the images.

I wasn't sure if this should be considered a minor bug or a wish list item