[Digikam-users] Re: can't view scanned tiff images

Jim Dory james at dorydesign.com
Sun Dec 5 20:40:48 GMT 2010

On Sun, Dec 5, 2010 at 10:02 AM, Marcel Wiesweg <marcel.wiesweg at gmx.de> wrote:
>> I scan images using a proprietary Vuescan (www.hamrick.com) which
>> supports Linux and my Nikon LS9000 film scanner. I may have a setting
>> wrong in Vuescan or Digikam that after I scan an image (they can be
>> quite large - ~50MB or more) Digikam complains that it cannot open the
>> tif file. I have the output set in Vuescan as a 24 bit RGB file type,
>> with Auto compression. Choices on the file type are 24 Bit and higher
>> RGB, or lower B & W.
> The TIFF format is pretty complex and allows a variety of formats and quirks,
> which are difficult to support.
> I recommend to report the bug at bugs.kde.org, providing a (small) sample
> image that cannot be opened by digikam.

Would a 1.2MB (1,300,683) file be too large? In my scan program, I set
the input on Vuescan from Archive to Web with Scan Resolution set to
Auto and that was the smallest size it scanned that Digikam can not
read. If I hover the mouse over the image in Digikam it sees the
thumbnail (not on the Archive sized ones) but the popup info display
shows it cannot find the image dimensions, and Photoshop shows the
resolution to be 667ppi with a tiny image size in inches.

If I set the Scan Resolution in Vuescan to the lowest in the list,
which is 667 - same as above, then the image size more than doubles
(3.5MB), but Digikam can see this image normally. I can also set the
Scan Resolution to Custom and specify a smaller resolution (for
smaller image size) but Digikam sees these images normally. So it
seems if I have the Scan Resolution set to Auto in the scanner
software then Digikam cannot see the image preview or won't open it in
Edit. Digikam behaves normally with images saved to jpeg.

I say all this in case it makes it obvious what the problem is, and if
not, to see if you think a 1.2 (1.3?) image is too large for the bugs

thanks, Jim

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