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/* despeckle.h: Bitmap despeckler for AutoTrace
Copyright (C) 2001 David A. Bartold / Martin Weber
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public License
as published by the Free Software Foundation; either version 2.1 of
the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA. */
#ifndef DESPECKLE_H
#define DESPECKLE_H
#include "types.h"
#include "bitmap.h"
#include "exception.h"
/* Despeckle - Despeckle a 8 or 24 bit image
*
* Input Parameters:
* Adaptive feature coalescing value, the despeckling level and noise removal
*
* Despeckling level (level): Integer from 0 to ~20
* 0 = perform no despeckling
* An increase of the despeckling level by one doubles the size of features.
* The Maximum value must be smaller then the logarithm base two of the number
* of pixels.
*
* Feature coalescing (tightness): Real from 0.0 to ~8.0
* 0 = Turn it off (whites may turn black and vice versa, etc)
* 3 = Good middle value
* 8 = Really tight
*
* Noise removal (noise_removal): Real from 1.0 to 0.0
* 1 = Maximum noise removal
* You should always use the highest value, only if certain parts of the image
* disappear you should lower it.
*
* Modified Parameters:
* The bitmap is despeckled.
*/
extern void despeckle(at_bitmap * bitmap, int level, gfloat tightness, gfloat noise_removal, at_exception_type * exp);
#endif /* not DESPECKLE_H */
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