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IMatch Discussion Boards => General Discussion and Questions => Topic started by: frankdarwin on September 22, 2021, 12:30:14 PM

Title: Images are upside down
Post by: frankdarwin on September 22, 2021, 12:30:14 PM
I have images that display correctly in the File Viewer, but display rotated 180 degrees in the Viewer.
What is the reason for this?
Title: Re: Images are upside down
Post by: Mario on September 22, 2021, 12:42:26 PM
What is "File Viewer" and what is "Viewer" in your post?
What does the EXIF orientation tag say for this image?
Which file format?
Title: Re: Images are upside down
Post by: frankdarwin on September 22, 2021, 12:50:03 PM
I mean the File Window. By Viewer I mean the window that opens when you double-click on the image.
The images are photos in TIF format.
I cannot find an EXIF oriantation.
Title: Re: Images are upside down
Post by: Mario on September 22, 2021, 01:01:28 PM
If the thumbnail in the File Window has a different orientation that the image in the Viewer, the TIFF may contain a badly oriented preview IMatch used for the thumbnail, or the EXIF orientation info is wrong. Hard to tell without a sample file.

Re-save the TIFF in your image editor. This should solve the problem.
Title: Re: Images are upside down
Post by: frankdarwin on September 22, 2021, 04:04:50 PM
I copied the file and deleted the old one.
Now everything is O.K. again.
Thank you.
Title: Re: Images are upside down
Post by: meyersoft on September 23, 2021, 10:04:07 AM
I have the same for some jpg files. Must have a look at them again.
Title: Re: Images are upside down
Post by: Mario on September 23, 2021, 10:09:15 AM
Quote from: frankdarwin on September 22, 2021, 04:04:50 PM
I copied the file and deleted the old one.
Now everything is O.K. again.
Thank you.

Copied the file where? In IMatch?
Copying a file in IMatch just copies the metadata, thumbnail and cache image, nothing is created "new".

If you've copied the files elsewhere and it came into IMatch as a "new" file, thumbnail and cache image are created fresh, too.

If you have another image with this issue, select it in the File Window, press Shift+Ctrl+F5 and select "Force Update".
If there was an issue while reading the file (impossible to know because the log file will be long gone) this should fix it.
Title: Re: Images are upside down
Post by: frankdarwin on September 23, 2021, 01:08:57 PM
Quote from: Mario on September 23, 2021, 10:09:15 AM
Copied the file where? In IMatch?

No. I copied the file in Windows Explorer. Then I deleted the old one in IMatch and renamed the copy.