[sane-devel] Scan Correction Program! :)

Renato rbsanti at bol.com.br
Sun May 11 13:57:24 UTC 2008


Your program is which I needed.

Renato B. Santiago

On Sun, 11 May 2008 14:02:28 +0200
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: 
> http://www.ekkehardmorgenstern.de/scancorrect-0.1.tar.gz
> 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. :)
> Greetings,
> Ekkehard.
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