the Geeqie 1.4 image viewer does not apply custom ICC profiles to JPEG images, so it will display images as RAW data (bad colors). The GIMP is rather good in handling various image formats with custom color profiles, but beware that not all the viewers are equally capable. Converting to another color space (sRGB is the one suggested by GIMP) will speed-up the handling of the image, but it is an lossy one-way operation due numerical approximation errors and due differences in color space extensions. Keeping the image into its original format (16 bit and original color space) is the best option if you want to keep all the numerical data for future image manipulation. When you will open the image into GIMP, you will asked if you want to convert the pixel values from the custom Canon color space, to the standard sRGB color space. Scanimage -device-name "pixma:04A9190D" \ #!/bin/sh FORMAT= 'tiff' RESOLUTION= '1200' SCANNER_PROFILE= '/usr/local/share/color/icc/canon9000fmarkii.icc' FILENAME= " $(date +%Y-%m-%d_%H%M%S)" GIMP) to correctly interpretate the image colors. That color profile will be eventually used by the software (e.g. By adding the -icc-profile to the scanimage invocation, we are just asking to embed the color profile into the image, wihout altering the pixel data values. The RGB values received from the sensor are stored as RAW values inside the TIFF image, without any specific interpretation of color space. With the command below, you will get a full-page scan ad 1200 dpi and 48 bit color (16 bit per color channel).
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