RSS/Atom feed Twitter
Site is read-only, email is disabled
  1. Chat
  2. Useful links
  3. Polls

Featured content

Q: Opening image with 'excessive' resolution

This discussion is connected to the gimp-user-list.gnome.org mailing list which is provided by the GIMP developers and not related to gimpusers.com.

This is a read-only list on gimpusers.com so this discussion thread is read-only, too.

2 of 2 messages available
Toggle history

Please log in to manage your subscriptions.
Q: Opening image with 'excessive' resolution John Mills 02 Dec 15:06
  Q: Opening image with 'excessive' resolution Sven Neumann 02 Dec 15:36
John Mills
2007-12-02 15:06:31 UTC (about 17 years ago)

Q: Opening image with 'excessive' resolution

GIMP Users -

If I open a large JPEG image file (like a commercially scanned transparency) in GIMP-2.2, I get a warning message: "Image resolution is out of bounds, using the default resolution instead."

The opened file is indeed at a low resolution (72 ppi), and has lost a great deal of information. Photoshop [Elements] silently opens the image at 300 ppi and seems to have retained much better detail (textures in this case).

The file sizes are not extra-ordinarily large - I can resample to a larger size if I wish.

Two questions: 1. What exactly is GIMP testing here (pixel spacing or number of pixels)? 2. Are either the maxiumum or 'default' resolutions adjustable?

Thanks for any background on this. - John Mills

Sven Neumann
2007-12-02 15:36:29 UTC (about 17 years ago)

Q: Opening image with 'excessive' resolution

Hi,

On Sun, 2007-12-02 at 09:06 -0500, John Mills wrote:

If I open a large JPEG image file (like a commercially scanned transparency) in GIMP-2.2, I get a warning message: "Image resolution is out of bounds, using the default resolution instead."

The opened file is indeed at a low resolution (72 ppi), and has lost a great deal of information. Photoshop [Elements] silently opens the image at 300 ppi and seems to have retained much better detail (textures in this case).

This is most likely nothing but a misinterpretation. GIMP will open exactly the same image with the same amount of details. You probably need to zoom in to see this. Or upgrade to GIMP 2.4 which displays zoomed-out images in much higher quality.

The warning you get is because your image has a resolution (number of pixels per physical length) specified which is either very low or very high. Most likely it is simply 0. There seem to be some application out there that fail to set a proper resolution.

Sven