Comment 2 for bug 603923

This sounds like an issue that involves the exiv2 library and your image. Can you add the image to this bug report and I'll investigate. Perhaps you could do the first step and the investigation by install the exiv2 application and running it on the image:

$ sudo apt-get install exiv2
$ exiv2 -pt logo_photo_big.png

If that's OK, then I'll dig around a bit more and see what's the matter.