Jtdylktuy

A particular image appears rotated (in the "portrait" orientation) when viewed in Thunderbird (as an e-mail attachment), Firefox, and Photoshop. However, it appears in the "landscape" orientation in Windows 7 Explorer and Windows Photo Viewer Why the inconsistency? Is there any way to fix that by changing settings in the viewer?

In this particular case, the "landscape" orientation is photographically correct, though the camera may have been in a funny position causing an accelerometer to think that a "portrait" orientation was intended.

As viewed in TB/FF/PS, I need to rotate the image counterclockwise 90 degrees to get it looking right. When I use Windows to do that, the orientation then changes to be "portrait" 90 degrees in the opposite rotational direction.

The workaround is to rotate it counterclockwise 90 degrees and then clockwise 90 degrees and then the image displays correctly and consistently in all viewers cited above. It is unintuitive that two opposite lossy rotations (which as opposite operations, should combine for no effect other than compression losses) should be required just to get an image displaying consistently in Windows and other viewers. What am I missing here?

I had exactly the same problem. Found out that [exif:Orientation:] is only respected by some programs.

I have Bash Ubuntu for Windows 10 so I checked the exif data by using:
root@AW:/mnt/c/Users/me/Dropbox/Photos/folder# identify -verbose * |grep -i exif:orientation
exif:Orientation: 6
exif:Orientation: 3
exif:Orientation: 3
exif:Orientation: 3
exif:Orientation: 6
exif:Orientation: 6
exif:Orientation: 6

Then I used jhead -autorot * in that folder. I then checked the exif data again, even though it showed correctly in the application I was using.

root@AW:/mnt/c/Users/me/Dropbox/Photos/folder# identify -verbose * |grep -i exif:orientation
exif:Orientation: 1
exif:Orientation: 1
exif:Orientation: 1
exif:Orientation: 1
exif:Orientation: 1
exif:Orientation: 1
exif:Orientation: 1

Since you're using Win 7 you won't have Ubuntu for Windows, unless you've upgraded by now.

Here is some very useful information from: http://www.impulseadventure.com/photo/exif-orientation.html

"Auto-Rotation Utilities
There are several tools that allow the image content to be rotated losslessly in software, based on the information stored in the EXIF orientation flag. By far the best time to perform this is during image import (e.g. from memory card). Most import applications (such as DownloaderPro) can do this during the copy operation (from memory card to hard drive). Doing so ensure that all programs can see the image properly rotated, without having to rely on the EXIF Orientation flag. This means that even programs such as Microsoft's Windows Picture and Fax Viewer will also show correct orientation for portrait / vertical images.

Most programs will rotate the image content and then update the Orientation flag to reflect the new orientation (usually a value of 1), while still leaving other metadata intact."

Win 8 & 10 - Default Windows Photo Viewer - reads the exif tags and correctly displays the image.