04-21-2017, 11:28 AM
(This post was last modified: 04-21-2017, 11:42 AM by rich2005.
Edit Reason: typo
)
The solution is as Blighty points out, go into Image -> Print Size and change the resolutions. This does not scale the image in any way but you will see the width and height adjust.
However, always a however
I can not reproduce that here. Gimp 2.8.20 Kubuntu 16.04
Scanning with xsane in a couple of different formats grey @ 300 ppi colour @ 200 ppi and
1. The correct ppi is reported by ImageMagick in both cases.
2. Gimp opens these with the correct ppi
It could be the format of the tiff file, There are many 'flavours' of tiff including compression. xsane saved both using jpeg compression. Maybe one of the alternatives gives a different result.
It is worth running one of your files through ImageMagick identify -verbose filename.tif just to see what is there. example:
However, always a however
I can not reproduce that here. Gimp 2.8.20 Kubuntu 16.04
Scanning with xsane in a couple of different formats grey @ 300 ppi colour @ 200 ppi and
1. The correct ppi is reported by ImageMagick in both cases.
2. Gimp opens these with the correct ppi
It could be the format of the tiff file, There are many 'flavours' of tiff including compression. xsane saved both using jpeg compression. Maybe one of the alternatives gives a different result.
It is worth running one of your files through ImageMagick identify -verbose filename.tif just to see what is there. example:
Quote:Image: gray.tiffedit: Nope, no change, tried uncompressed tiff and a packbits tiff. Open in Gimp, export to jpeg and the original ppi stays the same.
Format: TIFF (Tagged Image File Format)
Mime type: image/tiff
Class: DirectClass
Geometry: 2320x3468+0+0
Resolution: 300x300
Print size: 7.73333x11.56
Units: PixelsPerInch
Type: Grayscale
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