XSane - Color management

From 129ed4b29e21fdb8bda3bee89c3e5d8cca6ba749 Mon Sep 17 00:00:00 2001 From: Mattia Rizzolo Date: Fri, 3 Oct 2014 14:05:31 +0000 Subject: Imported Upstream version 0.993 --- doc/sane-xsane-color-management-doc.html | 253 +++++++++++++++++++++++++++++++ 1 file changed, 253 insertions(+) create mode 100644 doc/sane-xsane-color-management-doc.html (limited to 'doc/sane-xsane-color-management-doc.html') diff --git a/doc/sane-xsane-color-management-doc.html b/doc/sane-xsane-color-management-doc.html new file mode 100644 index 0000000..c18f61a --- /dev/null +++ b/doc/sane-xsane-color-management-doc.html @@ -0,0 +1,253 @@ + + + + + + + + XSane - Color management + + + + + + + + + +

+ +	+ + Color management + +

+ + +

+ + + + + + + + + +

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+Index +
+
+XSane mode: + xsane-target

+
+Scan options +
+
+Medium selection +
+
+Color management +
+
+Color correction: +

+
+Standard options window +
+
+Advanced options window +
+
+Preview: +

+
+Batch scan: +

+
+Setup: +

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+

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+

+When you scan an image with color management disabled then you often get an image that does not look very good. +The colors do not look natural, the contrast is bad, the image is too dark etc. + +The reason for this is that each device interprets a color e.g. represented by a red, green and blue value in +its own way. +
+When you want a display or a printer to produce an image with the colors of a photo that you want to scan with a scanner +then you need to tell your system how each device interprets colors. This is done with ICC/ICM profiles. +When you have at least an ICC/ICM profile for your scanner and for your display then you can enable the color management of XSane. +Please make sure that you filled out the +color management setup +correct before you enable it, otherwise you will get a lot of error messages. +
+
+
+Enable color management:
+ + + +
+To enable the color management activate it in the Preferences menu. +When you do this then the gamma, contrast and brightness options are disabled. +
+ +Color management function:
+ + +
+There are three different functions available when color management is enabled: +
+
+ Embed scanner ICM profile +
+ The image is saved with the original image data, no color transformation is + done. The ICM profile is embedded to the image file. Programs that support + color management know how to correct the colors. +
+ Advantages: +
+
no loss of information
+
+ Disadvantages: +
+
a lot of programs are not able to handle embedded profiles
+
+ Usage: +
+
image archieve, image manipulation with all color corrections, + professional printing
+
+
+ When the selected file format does not support the embedded profiles then + the image is tranformed to sRGB. +
+
+ +
+ Convert to sRGB +
+ The image is converted to sRGB, no ICM profile is embedded. +
+ Advantages: +
+
all programs can handle the color corrected image
+
+ Disadvantages: +
+
sRGB does not cover all visible colors
+
when you do any further color correction then you lose color + information that can result in visible color steps
+
+ Usage: +
+
web publication, office documents, image manipulation only when no color + correction is done, home and office printing
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+ +
+ Convert to working color space +
+ The image is converted to the working color space you selected in the color + management setup. The ICM profile of the working color space is embedded + to the image file. +
+ Advantages: +
+
There are color spaces that do cover the visible colors better than sRGB + does
+
+ Disadvantages: +
+
when you do any further color correction then you lose color + information that can result in visible color steps
+
+ Usage: +
+
image archieve, image manipulation with (may be limited) color correction, + professional printing
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+ +

+ +

+Author: Oliver Rauch +

+ + + + -- cgit v1.2.3