[Digikam-devel] [Bug 125779] use deflate compression for tiffs

Dennis Gnad bluedrago at web.de
Tue Apr 18 09:48:46 BST 2006


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http://bugs.kde.org/show_bug.cgi?id=125779         




------- Additional Comments From bluedrago web de  2006-04-18 10:48 -------
Is the deflate method surely used? I checked the box "Compress TIFF Files".
To test it I saved my image as 8bit and opened it in gimp, then saved it again with deflate in gimp. So it should be the same size, but then it is around 2/3 or 3/4 the size.
Does gimp discard some information which is some megabytes large (would be 5MB in my example - I can't believe that!)
The Exif "Image Informations" which digikam shows, shows "Rows per Strip" "1" for the digikam-saved image and "64" for the one from gimp. "Compression" and the other stuff which could mean something, is the same.



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