[sane-devel] Scan Correction Program! :)
m. allan noah
kitno455 at gmail.com
Sun May 11 17:42:20 UTC 2008
what scanner did you use that produces such poor calibration?
On 5/11/08, Ekkehard Morgenstern <ekkehard at ekkehardmorgenstern.de> wrote:
> Hi guys,
> today I wrote a small program to auto-correct color scans made by SANE.
> It is especially useful for scanning paper.
> Have a look at it here:
> The archive file contains ANSI C source code that works with libpng,
> description (readme.txt) and BSD license (license.txt), as well as a
> binary for OpenBSD 4.3 and a simple makefile. Size-reduced sample images
> are also included to see how it works.
> The program works like this:
> - First, you scan a blank sheet of paper, using a SANE frontend, like
> XSane (with default gamma correction!). This gives you a file that
> contains the data for a white sheet.
> - Then, you scan the sheet of paper you want to correct, also with the
> default gamma correction.
> - After that, you run the scancorrect program. It creates a new image
> based on the two input files.
> It's a very simple idea, but the concept could be integrated into a SANE
> driver, SANE itself, or a SANE frontend. :)
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