105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
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/* hough transform
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*
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* 7/3/14
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* - from hist_find.c
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*/
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/*
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This file is part of VIPS.
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VIPS is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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#ifndef VIPS_HOUGH_H
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#define VIPS_HOUGH_H
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#ifdef __cplusplus
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extern "C" {
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#endif /*__cplusplus*/
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#define VIPS_TYPE_HOUGH (vips_hough_get_type())
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#define VIPS_HOUGH( obj ) \
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(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
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VIPS_TYPE_HOUGH, VipsHough ))
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#define VIPS_HOUGH_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_CAST( (klass), \
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VIPS_TYPE_HOUGH, VipsHoughClass))
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#define VIPS_IS_HOUGH( obj ) \
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(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_HOUGH ))
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#define VIPS_IS_HOUGH_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_HOUGH ))
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#define VIPS_HOUGH_GET_CLASS( obj ) \
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(G_TYPE_INSTANCE_GET_CLASS( (obj), \
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VIPS_TYPE_HOUGH, VipsHoughClass ))
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typedef struct _VipsHough VipsHough;
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typedef struct _VipsHoughClass VipsHoughClass;
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typedef VipsImage *(*VipsHoughNewAccumulator)( VipsHough *hough );
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typedef void (*VipsHoughVote)( VipsHough *hough,
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VipsImage *accumulator, int x, int y );
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struct _VipsHough {
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VipsStatistic parent_instance;
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/* Size of parameter space. All have at least two dimensions, some
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* subclasses add a third.
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*/
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int width;
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int height;
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/* Each thread adds its accumulator image to this array on stop.
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* ith is the index the ith thread places its image at.
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*/
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VipsImage **threads;
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int n_threads;
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int ith;
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/* Sum the thread accumulators to here.
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*/
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VipsImage *out;
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};
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struct _VipsHoughClass {
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VipsStatisticClass parent_class;
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/* Make a new accumulator image.
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*/
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VipsHoughNewAccumulator new_accumulator;
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/* Vote function for this parameter space.
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*/
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VipsHoughVote vote;
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};
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GType vips_hough_get_type( void );
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#ifdef __cplusplus
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}
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#endif /*__cplusplus*/
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#endif /*VIPS_HOUGH_H*/
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