+++ /dev/null
-/*M///////////////////////////////////////////////////////////////////////////////////////
-//
-// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
-//
-// By downloading, copying, installing or using the software you agree to this license.
-// If you do not agree to this license, do not download, install,
-// copy or use the software.
-//
-//
-// Intel License Agreement
-// For Open Source Computer Vision Library
-//
-// Copyright (C) 2000, Intel Corporation, all rights reserved.
-// Third party copyrights are property of their respective owners.
-//
-// Redistribution and use in source and binary forms, with or without modification,
-// are permitted provided that the following conditions are met:
-//
-// * Redistribution's of source code must retain the above copyright notice,
-// this list of conditions and the following disclaimer.
-//
-// * Redistribution's in binary form must reproduce the above copyright notice,
-// this list of conditions and the following disclaimer in the documentation
-// and/or other materials provided with the distribution.
-//
-// * The name of Intel Corporation may not be used to endorse or promote products
-// derived from this software without specific prior written permission.
-//
-// This software is provided by the copyright holders and contributors "as is" and
-// any express or implied warranties, including, but not limited to, the implied
-// warranties of merchantability and fitness for a particular purpose are disclaimed.
-// In no event shall the Intel Corporation or contributors be liable for any direct,
-// indirect, incidental, special, exemplary, or consequential damages
-// (including, but not limited to, procurement of substitute goods or services;
-// loss of use, data, or profits; or business interruption) however caused
-// and on any theory of liability, whether in contract, strict liability,
-// or tort (including negligence or otherwise) arising in any way out of
-// the use of this software, even if advised of the possibility of such damage.
-//
-//M*/
-#include "_cv.h"
-
-typedef struct _CvRGBf
-{ float blue;
- float green;
- float red;
-}
-_CvRGBf;
-
-typedef struct _CvRect16u
-{
- ushort x1, y1, x2, y2;
-}
-_CvRect16u;
-
-typedef struct _CvPyramid
-{
- float c;
- struct _CvPyramid *p;
- int a;
- _CvRect16u rect; /* ROI for the connected component */
-} _CvPyramid;
-
-/* element of base layer */
-typedef struct _CvPyramidBase
-{
- float c;
- struct _CvPyramid *p;
-}
-_CvPyramidBase;
-
-typedef struct _CvPyramidC3
-{
- _CvRGBf c;
- struct _CvPyramidC3 *p;
- int a;
- _CvRect16u rect; /* ROI for the connected component */
-} _CvPyramidC3;
-
-/* element of base layer */
-typedef struct _CvPyramidBaseC3
-{
- _CvRGBf c;
- struct _CvPyramidC3 *p;
-}
-_CvPyramidBaseC3;
-
-typedef struct _CvListNode
-{
- struct _CvListNode* next;
- void* data;
-}
-_CvListNode;
-
-
-static CvStatus icvSegmentClusterC1( CvSeq* cmp_seq, CvSeq* res_seq,
- double threshold,
- _CvPyramid* first_level_end,
- CvSize first_level_size );
-
-static CvStatus icvSegmentClusterC3( CvSeq* cmp_seq, CvSeq* res_seq,
- double threshold,
- _CvPyramidC3* first_level_end,
- CvSize first_level_size );
-
-static CvStatus icvUpdatePyrLinks_8u_C1
- (int layer, void *layer_data, CvSize size, void *parent_layer,
- void *_writer, float threshold, int is_last_iter, void *_stub, CvWriteNodeFunction /*func*/);
-
-static CvStatus icvUpdatePyrLinks_8u_C3
- (int layer, void *layer_data, CvSize size, void *parent_layer,
- void *_writer, float threshold, int is_last_iter, void *_stub, CvWriteNodeFunction /*func*/);
-
-static void icvMaxRoi( _CvRect16u *max_rect, _CvRect16u* cur_rect );
-static void icvMaxRoi1( _CvRect16u *max_rect, int x, int y );
-
-
-#define _CV_CHECK( icvFun ) \
- { \
- if( icvFun != CV_OK ) \
- goto M_END; \
- }
-
-
-#define _CV_MAX3( a, b, c) ((a)>(b) ? ((a)>(c) ? (a) : (c)) : ((b)>(c) ? (b) : (c)))
-
-/*#define _CV_RGB_DIST(a, b) _CV_MAX3((float)fabs((a).red - (b).red), \
- (float)fabs((a).green - (b).green), \
- (float)fabs((a).blue - (b).blue))*/
-
-#define _CV_NEXT_BASE_C1(p,n) (_CvPyramid*)((char*)(p) + (n)*sizeof(_CvPyramidBase))
-#define _CV_NEXT_BASE_C3(p,n) (_CvPyramidC3*)((char*)(p) + (n)*sizeof(_CvPyramidBaseC3))
-
-
-CV_INLINE float icvRGBDist_Max( const _CvRGBf& a, const _CvRGBf& b )
-{
- float tr = (float)fabs(a.red - b.red);
- float tg = (float)fabs(a.green - b.green);
- float tb = (float)fabs(a.blue - b.blue);
-
- return _CV_MAX3( tr, tg, tb );
-}
-
-CV_INLINE float icvRGBDist_Sum( const _CvRGBf& a, const _CvRGBf& b )
-{
- float tr = (float)fabs(a.red - b.red);
- float tg = (float)fabs(a.green - b.green);
- float tb = (float)fabs(a.blue - b.blue);
-
- return (tr + tg + tb);
-}
-
-#if 1
-#define _CV_RGB_DIST icvRGBDist_Max
-#define _CV_RGB_THRESH_SCALE 1
-#else
-#define _CV_RGB_DIST icvRGBDist_Sum
-#define _CV_RGB_THRESH_SCALE 3
-#endif
-
-#define _CV_INV_TAB_SIZE 32
-
-static const float icvInvTab[ /*_CV_INV_TAB_SIZE*/ ] =
-{
- 1.00000000f, 0.50000000f, 0.33333333f, 0.25000000f, 0.20000000f, 0.16666667f,
- 0.14285714f, 0.12500000f, 0.11111111f, 0.10000000f, 0.09090909f, 0.08333333f,
- 0.07692308f, 0.07142857f, 0.06666667f, 0.06250000f, 0.05882353f, 0.05555556f,
- 0.05263158f, 0.05000000f, 0.04761905f, 0.04545455f, 0.04347826f, 0.04166667f,
- 0.04000000f, 0.03846154f, 0.03703704f, 0.03571429f, 0.03448276f, 0.03333333f,
- 0.03225806f, 0.03125000f
-};
-
-static void
-icvWritePyrNode( void *elem, void *writer )
-{
- CV_WRITE_SEQ_ELEM( *(_CvListNode *) elem, *(CvSeqWriter *) writer );
-}
-
-
-static CvStatus
-icvPyrSegmentation8uC1R( uchar * src_image, int src_step,
- uchar * dst_image, int dst_step,
- CvSize roi, CvFilter filter,
- CvSeq ** dst_comp, CvMemStorage * storage,
- int level, int threshold1, int threshold2 )
-{
- int i, j, l;
- int step;
- const int max_iter = 3; /* maximum number of iterations */
- int cur_iter = 0; /* current iteration */
-
- _CvPyramid *pyram[16]; /* pointers to the pyramid down up to level */
-
- float *pyramida = 0;
- _CvPyramid stub;
-
- _CvPyramid *p_cur;
- _CvPyramidBase *p_base;
- _CvListNode cmp_node;
-
- CvSeq *cmp_seq = 0;
- CvSeq *res_seq = 0;
- CvMemStorage *temp_storage = 0;
- CvSize size;
- CvStatus status;
- CvSeqWriter writer;
-
- int buffer_size;
- char *buffer = 0;
-
- status = CV_OK;
-
- /* clear pointer to resultant sequence */
- if( dst_comp )
- *dst_comp = 0;
-
- /* check args */
- if( !src_image || !dst_image || !storage || !dst_comp )
- return CV_NULLPTR_ERR;
- if( roi.width <= 0 || roi.height <= 0 || src_step < roi.width || dst_step < roi.width )
- return CV_BADSIZE_ERR;
- if( filter != CV_GAUSSIAN_5x5 )
- return CV_BADRANGE_ERR;
- if( threshold1 < 0 || threshold2 < 0 )
- return CV_BADRANGE_ERR;
- if( level <= 0 )
- return CV_BADRANGE_ERR;
-
- if( ((roi.width | roi.height) & ((1 << level) - 1)) != 0 )
- return CV_BADCOEF_ERR;
-
- temp_storage = cvCreateChildMemStorage( storage );
-
- /* sequence for temporary components */
- cmp_seq = cvCreateSeq( 0, sizeof( CvSeq ), sizeof( _CvListNode ), temp_storage );
- assert( cmp_seq != 0 );
-
- res_seq = cvCreateSeq( CV_SEQ_CONNECTED_COMP, sizeof( CvSeq ),
- sizeof( CvConnectedComp ), storage );
- assert( res_seq != 0 );
-
- /* calculate buffer size */
- buffer_size = roi.width * roi.height * (sizeof( float ) + sizeof( _CvPyramidBase ));
-
- for( l = 1; l <= level; l++ )
- buffer_size += ((roi.width >> l) + 1) * ((roi.height >> l) + 1) * sizeof(_CvPyramid);
-
- /* allocate buffer */
- buffer = (char *) cvAlloc( buffer_size );
- if( !buffer )
- {
- status = CV_OUTOFMEM_ERR;
- goto M_END;
- }
-
- pyramida = (float *) buffer;
-
- /* initialization pyramid-linking properties down up to level */
- step = roi.width * sizeof( float );
-
- {
- CvMat _src;
- CvMat _pyramida;
- cvInitMatHeader( &_src, roi.height, roi.width, CV_8UC1, src_image, src_step );
- cvInitMatHeader( &_pyramida, roi.height, roi.width, CV_32FC1, pyramida, step );
- cvConvert( &_src, &_pyramida );
- /*_CV_CHECK( icvCvtTo_32f_C1R( src_image, src_step, pyramida, step, roi, CV_8UC1 ));*/
- }
- p_base = (_CvPyramidBase *) (buffer + step * roi.height);
- pyram[0] = (_CvPyramid *) p_base;
-
- /* fill base level of pyramid */
- for( i = 0; i < roi.height; i++ )
- {
- for( j = 0; j < roi.width; j++, p_base++ )
- {
- p_base->c = pyramida[i * roi.width + j];
- p_base->p = &stub;
- }
- }
-
- p_cur = (_CvPyramid *) p_base;
- size = roi;
-
- /* calculate initial pyramid */
- for( l = 1; l <= level; l++ )
- {
- CvSize dst_size = { size.width/2+1, size.height/2+1 };
- CvMat prev_level = cvMat( size.height, size.width, CV_32FC1 );
- CvMat next_level = cvMat( dst_size.height, dst_size.width, CV_32FC1 );
-
- cvSetData( &prev_level, pyramida, step );
- cvSetData( &next_level, pyramida, step );
- cvPyrDown( &prev_level, &next_level );
-
- //_CV_CHECK( icvPyrDown_Gauss5x5_32f_C1R( pyramida, step, pyramida, step, size, buff ));
- //_CV_CHECK( icvPyrDownBorder_32f_CnR( pyramida, step, size, pyramida, step, dst_size, 1 ));
- pyram[l] = p_cur;
-
- size.width = dst_size.width - 1;
- size.height = dst_size.height - 1;
-
- /* fill layer #l */
- for( i = 0; i <= size.height; i++ )
- {
- for( j = 0; j <= size.width; j++, p_cur++ )
- {
- p_cur->c = pyramida[i * roi.width + j];
- p_cur->p = &stub;
- p_cur->a = 0;
- p_cur->rect.x2 = 0;
- }
- }
- }
-
- cvStartAppendToSeq( cmp_seq, &writer );
-
- /* do several iterations to determine son-father links */
- for( cur_iter = 0; cur_iter < max_iter; cur_iter++ )
- {
- int is_last_iter = cur_iter == max_iter - 1;
-
- size = roi;
-
- /* build son-father links down up to level */
- for( l = 0; l < level; l++ )
- {
- icvUpdatePyrLinks_8u_C1( l, pyram[l], size, pyram[l + 1], &writer,
- (float) threshold1, is_last_iter, &stub,
- icvWritePyrNode );
-
- /* clear last border row */
- if( l > 0 )
- {
- p_cur = pyram[l] + (size.width + 1) * size.height;
- for( j = 0; j <= size.width; j++ )
- p_cur[j].c = 0;
- }
-
- size.width >>= 1;
- size.height >>= 1;
- }
-
-/* clear the old c value for the last level */
- p_cur = pyram[level];
- for( i = 0; i <= size.height; i++, p_cur += size.width + 1 )
- for( j = 0; j <= size.width; j++ )
- p_cur[j].c = 0;
-
- size = roi;
- step = roi.width;
-
-/* calculate average c value for the 0 < l <=level */
- for( l = 0; l < level; l++, step = (step >> 1) + 1 )
- {
- _CvPyramid *p_prev, *p_row_prev;
-
- stub.c = 0;
-
- /* calculate average c value for the next level */
- if( l == 0 )
- {
- p_base = (_CvPyramidBase *) pyram[0];
- for( i = 0; i < roi.height; i++, p_base += size.width )
- {
- for( j = 0; j < size.width; j += 2 )
- {
- _CvPyramid *p1 = p_base[j].p;
- _CvPyramid *p2 = p_base[j + 1].p;
-
- p1->c += p_base[j].c;
- p2->c += p_base[j + 1].c;
- }
- }
- }
- else
- {
- p_cur = pyram[l];
- for( i = 0; i < size.height; i++, p_cur += size.width + 1 )
- {
- for( j = 0; j < size.width; j += 2 )
- {
- _CvPyramid *p1 = p_cur[j].p;
- _CvPyramid *p2 = p_cur[j + 1].p;
-
- float t0 = (float) p_cur[j].a * p_cur[j].c;
- float t1 = (float) p_cur[j + 1].a * p_cur[j + 1].c;
-
- p1->c += t0;
- p2->c += t1;
-
- if( !is_last_iter )
- p_cur[j].a = p_cur[j + 1].a = 0;
- }
- if( !is_last_iter )
- p_cur[size.width].a = 0;
- }
- if( !is_last_iter )
- {
- for( j = 0; j <= size.width; j++ )
- {
- p_cur[j].a = 0;
- }
- }
- }
-
- /* assign random values of the next level null c */
- p_cur = pyram[l + 1];
- p_row_prev = p_prev = pyram[l];
-
- size.width >>= 1;
- size.height >>= 1;
-
- for( i = 0; i <= size.height; i++, p_cur += size.width + 1 )
- {
- if( i < size.height || !is_last_iter )
- {
- for( j = 0; j < size.width; j++ )
- {
- int a = p_cur[j].a;
-
- if( a != 0 )
- {
- if( a <= _CV_INV_TAB_SIZE )
- {
- p_cur[j].c *= icvInvTab[a - 1];
- }
- else
- {
- p_cur[j].c /= a;
- }
- }
- else
- {
- p_cur[j].c = p_prev->c;
- }
-
- if( l == 0 )
- p_prev = _CV_NEXT_BASE_C1(p_prev,2);
- else
- p_prev += 2;
- }
-
- if( p_cur[size.width].a == 0 )
- {
- p_cur[size.width].c = p_prev[(l != 0) - 1].c;
- }
- else
- {
- p_cur[size.width].c /= p_cur[size.width].a;
- if( is_last_iter )
- {
- cmp_node.data = p_cur + size.width;
- CV_WRITE_SEQ_ELEM( cmp_node, writer );
- }
- }
- }
- else
- {
- for( j = 0; j <= size.width; j++ )
- {
- int a = p_cur[j].a;
-
- if( a != 0 )
- {
- if( a <= _CV_INV_TAB_SIZE )
- {
- p_cur[j].c *= icvInvTab[a - 1];
- }
- else
- {
- p_cur[j].c /= a;
- }
-
- cmp_node.data = p_cur + j;
- CV_WRITE_SEQ_ELEM( cmp_node, writer );
- }
- else
- {
- p_cur[j].c = p_prev->c;
- }
-
- if( l == 0 )
- {
- p_prev = _CV_NEXT_BASE_C1(p_prev, (j * 2 < step - 2 ? 2 : 1));
- }
- else
- {
- p_prev++;
- }
- }
- }
-
- if( l + 1 == level && !is_last_iter )
- for( j = 0; j <= size.width; j++ )
- p_cur[j].a = 0;
-
- if( !(i & 1) )
- {
- p_prev = p_row_prev;
- }
- else
- {
- p_prev = (_CvPyramid*)((char*)p_row_prev + step *
- (l == 0 ? sizeof(_CvPyramidBase) : sizeof(_CvPyramid)));
- }
- }
- }
- } /* end of the iteration process */
-
- /* construct a connected components */
- size.width = roi.width >> level;
- size.height = roi.height >> level;
-
- p_cur = pyram[level];
-
- for( i = 0; i < size.height; i++, p_cur += size.width + 1 )
- {
- for( j = 0; j < size.width; j++ )
- {
- if( p_cur[j].a != 0 )
- {
- cmp_node.data = p_cur + j;
- CV_WRITE_SEQ_ELEM( cmp_node, writer );
- }
- }
- }
-
- cvEndWriteSeq( &writer );
-
-/* clusterization segmented components and construction
- output connected components */
- icvSegmentClusterC1( cmp_seq, res_seq, threshold2, pyram[1], roi );
-
-/* convert (inplace) resultant segment values to int (top level) */
-
-/* propagate segment values top down */
- for( l = level - 1; l >= 0; l-- )
- {
- p_cur = pyram[l];
-
- size.width <<= 1;
- size.height <<= 1;
-
- if( l == 0 )
- {
- size.width--;
- size.height--;
- }
-
- for( i = 0; i <= size.height; i++ )
- {
- for( j = 0; j <= size.width; j++ )
- {
- _CvPyramid *p = p_cur->p;
-
- assert( p != 0 );
- if( p != &stub )
- p_cur->c = p->c;
-
- if( l == 0 )
- {
- Cv32suf _c;
- /* copy the segmented values to destination image */
- _c.f = p_cur->c; dst_image[j] = (uchar)_c.i;
- p_cur = _CV_NEXT_BASE_C1(p_cur, 1);
- }
- else
- {
- p_cur++;
- }
- }
- if( l == 0 )
- dst_image += dst_step;
- }
- }
- M_END:
-
- cvFree( &buffer );
- cvReleaseMemStorage( &temp_storage );
-
- if( status == CV_OK )
- *dst_comp = res_seq;
-
- return status;
-}
-
-
-
-/****************************************************************************************\
- color!!! image segmentation by pyramid-linking
-\****************************************************************************************/
-static CvStatus
-icvPyrSegmentation8uC3R( uchar * src_image, int src_step,
- uchar * dst_image, int dst_step,
- CvSize roi, CvFilter filter,
- CvSeq ** dst_comp, CvMemStorage * storage,
- int level, int threshold1, int threshold2 )
-{
- int i, j, l;
-
- int step;
- const int max_iter = 3; /* maximum number of iterations */
- int cur_iter = 0; /* current iteration */
-
- _CvPyramidC3 *pyram[16]; /* pointers to the pyramid down up to level */
-
- float *pyramida = 0;
- _CvPyramidC3 stub;
-
- _CvPyramidC3 *p_cur;
- _CvPyramidBaseC3 *p_base;
- _CvListNode cmp_node;
-
- CvSeq *cmp_seq = 0;
- CvSeq *res_seq = 0;
- CvMemStorage *temp_storage = 0;
- CvSize size;
- CvStatus status;
- CvSeqWriter writer;
-
- int buffer_size;
- char *buffer = 0;
-
- status = CV_OK;
-
- threshold1 *= _CV_RGB_THRESH_SCALE;
- threshold2 *= _CV_RGB_THRESH_SCALE;
-
- /* clear pointer to resultant sequence */
- if( dst_comp )
- *dst_comp = 0;
-
- /* check args */
- if( !src_image || !dst_image || !storage || !dst_comp )
- return CV_NULLPTR_ERR;
- if( roi.width <= 0 || roi.height <= 0 ||
- src_step < roi.width * 3 || dst_step < roi.width * 3 ) return CV_BADSIZE_ERR;
- if( filter != CV_GAUSSIAN_5x5 )
- return CV_BADRANGE_ERR;
- if( threshold1 < 0 || threshold2 < 0 )
- return CV_BADRANGE_ERR;
- if( level <= 0 )
- return CV_BADRANGE_ERR;
-
- if( ((roi.width | roi.height) & ((1 << level) - 1)) != 0 )
- return CV_BADCOEF_ERR;
-
- temp_storage = cvCreateChildMemStorage( storage );
-
- /* sequence for temporary components */
- cmp_seq = cvCreateSeq( 0, sizeof( CvSeq ), sizeof( _CvListNode ), temp_storage );
- assert( cmp_seq != 0 );
-
- res_seq = cvCreateSeq( CV_SEQ_CONNECTED_COMP, sizeof( CvSeq ),
- sizeof( CvConnectedComp ), storage );
- assert( res_seq != 0 );
-
- /* calculate buffer size */
- buffer_size = roi.width * roi.height * (sizeof( _CvRGBf ) + sizeof( _CvPyramidBaseC3 ));
-
- for( l = 1; l <= level; l++ )
- buffer_size += ((roi.width >> l) + 1) * ((roi.height >> l) + 1) * sizeof(_CvPyramidC3);
-
- /* allocate buffer */
- buffer = (char *) cvAlloc( buffer_size );
- if( !buffer )
- {
- status = CV_OUTOFMEM_ERR;
- goto M_END;
- }
-
- pyramida = (float *) buffer;
-
- /* initialization pyramid-linking properties down up to level */
- step = roi.width * sizeof( _CvRGBf );
-
- {
- CvMat _src;
- CvMat _pyramida;
- cvInitMatHeader( &_src, roi.height, roi.width, CV_8UC3, src_image, src_step );
- cvInitMatHeader( &_pyramida, roi.height, roi.width, CV_32FC3, pyramida, step );
- cvConvert( &_src, &_pyramida );
- /*_CV_CHECK( icvCvtTo_32f_C1R( src_image, src_step, pyramida, step,
- cvSize( roi.width * 3, roi.height ), CV_8UC1 ));*/
- }
-
- p_base = (_CvPyramidBaseC3 *) (buffer + step * roi.height);
- pyram[0] = (_CvPyramidC3 *) p_base;
-
- /* fill base level of pyramid */
- for( i = 0; i < roi.height; i++ )
- {
- for( j = 0; j < roi.width; j++, p_base++ )
- {
- p_base->c = ((_CvRGBf *) pyramida)[i * roi.width + j];
- p_base->p = &stub;
- }
- }
-
- p_cur = (_CvPyramidC3 *) p_base;
- size = roi;
-
- /* calculate initial pyramid */
- for( l = 1; l <= level; l++ )
- {
- CvSize dst_size = { size.width/2 + 1, size.height/2 + 1 };
- CvMat prev_level = cvMat( size.height, size.width, CV_32FC3 );
- CvMat next_level = cvMat( dst_size.height, dst_size.width, CV_32FC3 );
-
- cvSetData( &prev_level, pyramida, step );
- cvSetData( &next_level, pyramida, step );
- cvPyrDown( &prev_level, &next_level );
-
- //_CV_CHECK( icvPyrDown_Gauss5x5_32f_C3R( pyramida, step, pyramida, step, size, buff ));
- //_CV_CHECK( icvPyrDownBorder_32f_CnR( pyramida, step, size, pyramida, step, dst_size, 3 ));
- pyram[l] = p_cur;
-
- size.width = dst_size.width - 1;
- size.height = dst_size.height - 1;
-
- /* fill layer #l */
- for( i = 0; i <= size.height; i++ )
- {
- assert( (char*)p_cur - buffer < buffer_size );
- for( j = 0; j <= size.width; j++, p_cur++ )
- {
- p_cur->c = ((_CvRGBf *) pyramida)[i * roi.width + j];
- p_cur->p = &stub;
- p_cur->a = 0;
- p_cur->rect.x2 = 0;
- }
- }
- }
-
- cvStartAppendToSeq( cmp_seq, &writer );
-
- /* do several iterations to determine son-father links */
- for( cur_iter = 0; cur_iter < max_iter; cur_iter++ )
- {
- int is_last_iter = cur_iter == max_iter - 1;
-
- size = roi;
-
- /* build son-father links down up to level */
- for( l = 0; l < level; l++ )
- {
- icvUpdatePyrLinks_8u_C3( l, pyram[l], size, pyram[l + 1], &writer,
- (float) threshold1, is_last_iter, &stub,
- icvWritePyrNode );
-
- /* clear last border row */
- if( l > 0 )
- {
- p_cur = pyram[l] + (size.width + 1) * size.height;
- for( j = 0; j <= size.width; j++ )
- p_cur[j].c.blue = p_cur[j].c.green = p_cur[j].c.red = 0;
- }
-
- size.width >>= 1;
- size.height >>= 1;
- }
-
-/* clear the old c value for the last level */
- p_cur = pyram[level];
- for( i = 0; i <= size.height; i++, p_cur += size.width + 1 )
- for( j = 0; j <= size.width; j++ )
- p_cur[j].c.blue = p_cur[j].c.green = p_cur[j].c.red = 0;
-
- size = roi;
- step = roi.width;
-
-/* calculate average c value for the 0 < l <=level */
- for( l = 0; l < level; l++, step = (step >> 1) + 1 )
- {
- _CvPyramidC3 *p_prev, *p_row_prev;
-
- stub.c.blue = stub.c.green = stub.c.red = 0;
-
- /* calculate average c value for the next level */
- if( l == 0 )
- {
- p_base = (_CvPyramidBaseC3 *) pyram[0];
- for( i = 0; i < roi.height; i++, p_base += size.width )
- {
- for( j = 0; j < size.width; j++ )
- {
- _CvPyramidC3 *p = p_base[j].p;
-
- p->c.blue += p_base[j].c.blue;
- p->c.green += p_base[j].c.green;
- p->c.red += p_base[j].c.red;
- }
- }
- }
- else
- {
- p_cur = pyram[l];
- for( i = 0; i < size.height; i++, p_cur += size.width + 1 )
- {
- for( j = 0; j < size.width; j++ )
- {
- _CvPyramidC3 *p = p_cur[j].p;
- float a = (float) p_cur[j].a;
-
- p->c.blue += a * p_cur[j].c.blue;
- p->c.green += a * p_cur[j].c.green;
- p->c.red += a * p_cur[j].c.red;
-
- if( !is_last_iter )
- p_cur[j].a = 0;
- }
- if( !is_last_iter )
- p_cur[size.width].a = 0;
- }
- if( !is_last_iter )
- {
- for( j = 0; j <= size.width; j++ )
- {
- p_cur[j].a = 0;
- }
- }
- }
-
- /* assign random values of the next level null c */
- p_cur = pyram[l + 1];
- p_row_prev = p_prev = pyram[l];
-
- size.width >>= 1;
- size.height >>= 1;
-
- for( i = 0; i <= size.height; i++, p_cur += size.width + 1 )
- {
- if( i < size.height || !is_last_iter )
- {
- for( j = 0; j < size.width; j++ )
- {
- int a = p_cur[j].a;
-
- if( a != 0 )
- {
- float inv_a;
-
- if( a <= _CV_INV_TAB_SIZE )
- {
- inv_a = icvInvTab[a - 1];
- }
- else
- {
- inv_a = 1.f / a;
- }
- p_cur[j].c.blue *= inv_a;
- p_cur[j].c.green *= inv_a;
- p_cur[j].c.red *= inv_a;
- }
- else
- {
- p_cur[j].c = p_prev->c;
- }
-
- if( l == 0 )
- p_prev = _CV_NEXT_BASE_C3( p_prev, 2 );
- else
- p_prev += 2;
- }
-
- if( p_cur[size.width].a == 0 )
- {
- p_cur[size.width].c = p_prev[(l != 0) - 1].c;
- }
- else
- {
- p_cur[size.width].c.blue /= p_cur[size.width].a;
- p_cur[size.width].c.green /= p_cur[size.width].a;
- p_cur[size.width].c.red /= p_cur[size.width].a;
- if( is_last_iter )
- {
- cmp_node.data = p_cur + size.width;
- CV_WRITE_SEQ_ELEM( cmp_node, writer );
- }
- }
- }
- else
- {
- for( j = 0; j <= size.width; j++ )
- {
- int a = p_cur[j].a;
-
- if( a != 0 )
- {
- float inv_a;
-
- if( a <= _CV_INV_TAB_SIZE )
- {
- inv_a = icvInvTab[a - 1];
- }
- else
- {
- inv_a = 1.f / a;
- }
- p_cur[j].c.blue *= inv_a;
- p_cur[j].c.green *= inv_a;
- p_cur[j].c.red *= inv_a;
-
- cmp_node.data = p_cur + j;
- CV_WRITE_SEQ_ELEM( cmp_node, writer );
- }
- else
- {
- p_cur[j].c = p_prev->c;
- }
-
- if( l == 0 )
- {
- p_prev = _CV_NEXT_BASE_C3( p_prev, (j * 2 < step - 2 ? 2 : 1));
- }
- else
- {
- p_prev++;
- }
- }
- }
-
- if( l + 1 == level && !is_last_iter )
- for( j = 0; j <= size.width; j++ )
- p_cur[j].a = 0;
-
- if( !(i & 1) )
- {
- p_prev = p_row_prev;
- }
- else
- {
- p_prev = (_CvPyramidC3*)((char*)p_row_prev + step *
- (l == 0 ? sizeof( _CvPyramidBaseC3 ) : sizeof( _CvPyramidC3 )));
- }
- }
- }
- } /* end of the iteration process */
-
- /* construct a connected components */
- size.width = roi.width >> level;
- size.height = roi.height >> level;
-
- p_cur = pyram[level];
-
- for( i = 0; i < size.height; i++, p_cur += size.width + 1 )
- {
- for( j = 0; j < size.width; j++ )
- {
- if( p_cur[j].a != 0 )
- {
- cmp_node.data = p_cur + j;
- CV_WRITE_SEQ_ELEM( cmp_node, writer );
- }
- }
- }
-
- cvEndWriteSeq( &writer );
-
-/* clusterization segmented components and construction
- output connected components */
- icvSegmentClusterC3( cmp_seq, res_seq, threshold2, pyram[1], roi );
-
-/* convert (inplace) resultant segment values to int (top level) */
-
-/* propagate segment values top down */
- for( l = level - 1; l >= 0; l-- )
- {
- p_cur = pyram[l];
-
- size.width <<= 1;
- size.height <<= 1;
-
- if( l == 0 )
- {
- size.width--;
- size.height--;
- }
-
- for( i = 0; i <= size.height; i++ )
- {
- for( j = 0; j <= size.width; j++ )
- {
- _CvPyramidC3 *p = p_cur->p;
-
- assert( p != 0 );
- if( p != &stub )
- {
- p_cur->c = p->c;
- }
-
- if( l == 0 )
- {
- Cv32suf _c;
- /* copy the segmented values to destination image */
- _c.f = p_cur->c.blue; dst_image[j*3] = (uchar)_c.i;
- _c.f = p_cur->c.green; dst_image[j*3+1] = (uchar)_c.i;
- _c.f = p_cur->c.red; dst_image[j*3+2] = (uchar)_c.i;
- p_cur = _CV_NEXT_BASE_C3(p_cur,1);
- }
- else
- {
- p_cur++;
- }
- }
- if( l == 0 )
- dst_image += dst_step;
- }
- }
-
- M_END:
-
- cvFree( &buffer );
- cvReleaseMemStorage( &temp_storage );
-
- if( status == CV_OK )
- *dst_comp = res_seq;
-
- return status;
-}
-
-
-static CvStatus icvUpdatePyrLinks_8u_C1
- (int layer, void *layer_data, CvSize size, void *parent_layer,
- void *_writer, float threshold, int is_last_iter, void *_stub, CvWriteNodeFunction /*func*/)
-{
- int i, j;
- _CvListNode cmp_node;
-
- _CvPyramid *stub = (_CvPyramid *) _stub;
- _CvPyramid *p_cur = (_CvPyramid *) layer_data;
- _CvPyramid *p_next1 = (_CvPyramid *) parent_layer;
- _CvPyramid *p_next3 = p_next1 + (size.width >> 1) + 1;
-
- CvSeqWriter & writer = *(CvSeqWriter *) _writer;
-
- for( i = 0; i < size.height; i++ )
- {
- for( j = 0; j < size.width; j += 2 )
- {
- float c0, c1, c2, c3, c4;
- _CvPyramid *p;
-
-/* son-father threshold linking for the current node establish */
- c0 = p_cur->c;
-
-/* find pointer for the first pixel */
- c1 = (float) fabs( c0 - p_next1[0].c );
- c2 = (float) fabs( c0 - p_next1[1].c );
- c3 = (float) fabs( c0 - p_next3[0].c );
- c4 = (float) fabs( c0 - p_next3[1].c );
-
- p = p_next1;
-
- if( c1 > c2 )
- {
- p = p_next1 + 1;
- c1 = c2;
- }
- if( c1 > c3 )
- {
- p = p_next3;
- c1 = c3;
- }
- if( c1 > c4 )
- {
- p = p_next3 + 1;
- c1 = c4;
- }
-
- if( c1 <= threshold )
- {
- p_cur->p = p;
-
- if( layer == 0 )
- {
- p->a++;
- p_cur = (_CvPyramid*)((char*)p_cur + sizeof(_CvPyramidBase));
- if( is_last_iter )
- icvMaxRoi1( &(p->rect), j, i );
- }
- else
- {
- int a = p_cur->a;
-
- p->a += a;
- p_cur->c = 0;
- p_cur++;
- if( is_last_iter && a != 0 )
- icvMaxRoi( &(p->rect), &(p_cur[-1].rect) );
- }
- }
- else
- {
- p_cur->p = stub;
- if( is_last_iter )
- {
- cmp_node.data = p_cur;
- CV_WRITE_SEQ_ELEM( cmp_node, writer );
- }
- if( layer == 0 )
- {
- p_cur = _CV_NEXT_BASE_C1(p_cur,1);
- }
- else
- {
- p_cur->c = 0;
- p_cur++;
- }
- }
-
- /* find pointer for the second pixel */
- c0 = p_cur->c;
-
- c1 = (float) fabs( c0 - p_next1[0].c );
- c2 = (float) fabs( c0 - p_next1[1].c );
- c3 = (float) fabs( c0 - p_next3[0].c );
- c4 = (float) fabs( c0 - p_next3[1].c );
-
- p = p_next1;
- p_next1++;
-
- if( c1 > c2 )
- {
- p = p_next1;
- c1 = c2;
- }
- if( c1 > c3 )
- {
- p = p_next3;
- c1 = c3;
- }
-
- p_next3++;
- if( c1 > c4 )
- {
- p = p_next3;
- c1 = c4;
- }
-
- if( c1 <= threshold )
- {
- p_cur->p = p;
-
- if( layer == 0 )
- {
- p->a++;
- p_cur = _CV_NEXT_BASE_C1(p_cur,1);
- if( is_last_iter )
- icvMaxRoi1( &(p->rect), j + 1, i );
- }
- else
- {
- int a = p_cur->a;
-
- p->a += a;
- p_cur->c = 0;
- p_cur++;
- if( is_last_iter && a != 0 )
- icvMaxRoi( &(p->rect), &(p_cur[-1].rect) );
- }
- }
- else
- {
- p_cur->p = stub;
- if( is_last_iter )
- {
- cmp_node.data = p_cur;
- CV_WRITE_SEQ_ELEM( cmp_node, writer );
- }
- if( layer == 0 )
- {
- p_cur = _CV_NEXT_BASE_C1(p_cur,1);
- }
- else
- {
- p_cur->c = 0;
- p_cur++;
- }
- }
- }
-
- /* clear c's */
- if( layer > 0 )
- {
- p_cur->c = 0;
- p_cur++;
- }
-
- if( !(i & 1) )
- {
- p_next1 -= size.width >> 1;
- p_next3 -= size.width >> 1;
- }
- else
- {
- p_next1++;
- p_next3++;
- }
- }
-
- return CV_OK;
-}
-
-
-static CvStatus icvUpdatePyrLinks_8u_C3
- (int layer, void *layer_data, CvSize size, void *parent_layer,
- void *_writer, float threshold, int is_last_iter, void *_stub, CvWriteNodeFunction /*func*/)
-{
- int i, j;
- _CvListNode cmp_node;
-
- _CvPyramidC3 *stub = (_CvPyramidC3 *) _stub;
- _CvPyramidC3 *p_cur = (_CvPyramidC3 *) layer_data;
- _CvPyramidC3 *p_next1 = (_CvPyramidC3 *) parent_layer;
- _CvPyramidC3 *p_next3 = p_next1 + (size.width >> 1) + 1;
-
- CvSeqWriter & writer = *(CvSeqWriter *) _writer;
-
- for( i = 0; i < size.height; i++ )
- {
- for( j = 0; j < size.width; j += 2 )
- {
- float c1, c2, c3, c4;
- _CvPyramidC3 *p;
-
-/* find pointer for the first pixel */
- c1 = _CV_RGB_DIST( p_cur->c, p_next1[0].c );
- c2 = _CV_RGB_DIST( p_cur->c, p_next1[1].c );
- c3 = _CV_RGB_DIST( p_cur->c, p_next3[0].c );
- c4 = _CV_RGB_DIST( p_cur->c, p_next3[1].c );
-
- p = p_next1;
-
- if( c1 > c2 )
- {
- p = p_next1 + 1;
- c1 = c2;
- }
- if( c1 > c3 )
- {
- p = p_next3;
- c1 = c3;
- }
- if( c1 > c4 )
- {
- p = p_next3 + 1;
- c1 = c4;
- }
-
- if( c1 < threshold )
- {
- p_cur->p = p;
-
- if( layer == 0 )
- {
- p->a++;
- p_cur = _CV_NEXT_BASE_C3(p_cur,1);
- if( is_last_iter )
- icvMaxRoi1( &(p->rect), j, i );
- }
- else
- {
- int a = p_cur->a;
-
- p->a += a;
- p_cur->c.blue = p_cur->c.green = p_cur->c.red = 0;
- p_cur++;
- if( is_last_iter && a != 0 )
- icvMaxRoi( &(p->rect), &(p_cur[-1].rect) );
- }
- }
- else
- {
- p_cur->p = stub;
- if( is_last_iter /* && ( == 0 || p_cur->a != 0) */ )
- {
- cmp_node.data = p_cur;
- CV_WRITE_SEQ_ELEM( cmp_node, writer );
- }
-
- if( layer == 0 )
- {
- p_cur = _CV_NEXT_BASE_C3(p_cur,1);
- }
- else
- {
- p_cur->c.blue = p_cur->c.green = p_cur->c.red = 0;
- p_cur++;
- }
- }
-
- /* find pointer for the second pixel */
- c1 = _CV_RGB_DIST( p_cur->c, p_next1[0].c );
- c2 = _CV_RGB_DIST( p_cur->c, p_next1[1].c );
- c3 = _CV_RGB_DIST( p_cur->c, p_next3[0].c );
- c4 = _CV_RGB_DIST( p_cur->c, p_next3[1].c );
-
- p = p_next1;
- p_next1++;
-
- if( c1 > c2 )
- {
- p = p_next1;
- c1 = c2;
- }
- if( c1 > c3 )
- {
- p = p_next3;
- c1 = c3;
- }
-
- p_next3++;
- if( c1 > c4 )
- {
- p = p_next3;
- c1 = c4;
- }
-
- if( c1 < threshold )
- {
- p_cur->p = p;
-
- if( layer == 0 )
- {
- p->a++;
- p_cur = _CV_NEXT_BASE_C3(p_cur,1);
- if( is_last_iter )
- icvMaxRoi1( &(p->rect), j + 1, i );
- }
- else
- {
- int a = p_cur->a;
-
- p->a += a;
- p_cur->c.blue = p_cur->c.green = p_cur->c.red = 0;
- p_cur++;
- if( is_last_iter && a != 0 )
- icvMaxRoi( &(p->rect), &(p_cur[-1].rect) );
- }
- }
- else
- {
- p_cur->p = stub;
- if( is_last_iter /* && ( == 0 || p_cur->a != 0) */ )
- {
- cmp_node.data = p_cur;
- CV_WRITE_SEQ_ELEM( cmp_node, writer );
- }
- if( layer == 0 )
- {
- p_cur = _CV_NEXT_BASE_C3(p_cur,1);
- }
- else
- {
- p_cur->c.blue = p_cur->c.green = p_cur->c.red = 0;
- p_cur++;
- }
- }
- }
-
- /* clear c's */
- if( layer > 0 )
- {
- p_cur->c.blue = p_cur->c.green = p_cur->c.red = 0;
- p_cur++;
- }
-
- if( !(i & 1) )
- {
- p_next1 -= size.width >> 1;
- p_next3 -= size.width >> 1;
- }
- else
- {
- p_next1++;
- p_next3++;
- }
- }
-
- return CV_OK;
-}
-
-
-
-/****************************************************************************************\
-
- clusterization segmented components
-
-\****************************************************************************************/
-static void
-icvExpandBaseLevelC1( _CvPyramid * base_p, _CvPyramid * p, _CvPyramidBase * start, int width )
-{
- int x = (int)((_CvPyramidBase *) base_p - start);
- int y = x / width;
-
- x -= y * width;
- p->a = 1;
- p->rect.x1 = (ushort) x;
- p->rect.y1 = (ushort) y;
- p->rect.x2 = (ushort) (x + 1);
- p->rect.y2 = (ushort) (y + 1);
- p->c = base_p->c;
-}
-
-CvStatus
-icvSegmentClusterC1( CvSeq * cmp_seq, CvSeq * res_seq,
- double threshold, _CvPyramid * first_level_end, CvSize first_level_size )
-{
- const double eps = 1.;
- CvSeqWriter writer;
- CvSeqReader reader;
- _CvPyramid temp_cmp;
- _CvPyramidBase *first_level_start = (_CvPyramidBase *) first_level_end -
- first_level_size.width * first_level_size.height;
- int c, i, count = cmp_seq->total;
-
- cvStartReadSeq( cmp_seq, &reader, 0 );
- cvStartAppendToSeq( res_seq, &writer );
-
- if( threshold < eps )
- {
- /* if threshold is too small then simply copy all
- the components to the output sequence */
- for( i = 0; i < count; i++ )
- {
- CvConnectedComp comp;
- _CvPyramid *cmp = (_CvPyramid *) (((_CvListNode *) reader.ptr)->data);
- Cv32suf _c;
-
- if( cmp < first_level_end )
- {
- icvExpandBaseLevelC1( cmp, &temp_cmp, first_level_start,
- first_level_size.width );
- cmp = &temp_cmp;
- }
-
- _c.i = cvRound( cmp->c );
- cmp->c = _c.f;
- comp.value = cvRealScalar(_c.i);
- comp.area = cmp->a;
- comp.rect.x = cmp->rect.x1;
- comp.rect.y = cmp->rect.y1;
- comp.rect.width = cmp->rect.x2 - cmp->rect.x1;
- comp.rect.height = cmp->rect.y2 - cmp->rect.y1;
- comp.contour = 0;
-
- CV_WRITE_SEQ_ELEM( comp, writer );
- CV_NEXT_SEQ_ELEM( sizeof( _CvListNode ), reader );
- }
- }
- else
- {
- _CvListNode stub_node;
- _CvListNode *prev = &stub_node;
-
- stub_node.next = 0;
-
- for( i = 0; i < count; i++ )
- {
- _CvListNode *node = (_CvListNode *) reader.ptr;
-
- prev->next = node;
- prev = node;
- CV_NEXT_SEQ_ELEM( sizeof( _CvListNode ), reader );
- }
- prev->next = 0;
- prev = stub_node.next;
-
- while( prev )
- {
- _CvListNode *node = prev->next;
- _CvListNode *acc = prev;
- _CvPyramid *cmp = (_CvPyramid *) (acc->data);
- CvConnectedComp comp;
- float c0 = cmp->c;
-
- if( cmp < first_level_end )
- {
- icvExpandBaseLevelC1( cmp, &temp_cmp, first_level_start,
- first_level_size.width );
- }
- else
- {
- temp_cmp = *cmp;
- temp_cmp.c *= temp_cmp.a;
- }
-
- acc->next = 0;
- stub_node.next = 0;
- prev = &stub_node;
-
- while( node )
- {
- cmp = (_CvPyramid *) (node->data);
- if( fabs( c0 - cmp->c ) < threshold )
- {
- _CvPyramid temp;
-
- /* exclude from global list and add to list of joint component */
- prev->next = node->next;
- node->next = acc;
- acc = node;
-
- if( cmp < first_level_end )
- {
- icvExpandBaseLevelC1( cmp, &temp, first_level_start,
- first_level_size.width );
- cmp = &temp;
- }
-
- temp_cmp.a += cmp->a;
- temp_cmp.c += cmp->c * cmp->a;
- icvMaxRoi( &(temp_cmp.rect), &(cmp->rect) );
- }
- else
- {
- if( prev == &stub_node )
- {
- stub_node.next = node;
- }
- prev = node;
- }
- node = prev->next;
- }
-
- if( temp_cmp.a != 0 )
- {
- c = cvRound( temp_cmp.c / temp_cmp.a );
- }
- else
- {
- c = cvRound( c0 );
- }
- node = acc;
-
- while( node )
- {
- Cv32suf _c;
- cmp = (_CvPyramid *) (node->data);
- _c.i = c; cmp->c = _c.f;
- node = node->next;
- }
-
- comp.value = cvRealScalar(c);
- comp.area = temp_cmp.a;
- comp.rect.x = temp_cmp.rect.x1;
- comp.rect.y = temp_cmp.rect.y1;
- comp.rect.width = temp_cmp.rect.x2 - temp_cmp.rect.x1;
- comp.rect.height = temp_cmp.rect.y2 - temp_cmp.rect.y1;
- comp.contour = 0;
-
- CV_WRITE_SEQ_ELEM( comp, writer );
- prev = stub_node.next;
- }
- }
-
- cvEndWriteSeq( &writer );
- return CV_OK;
-}
-
-/****************************************************************************************\
-
- clusterization segmented components
-
-\****************************************************************************************/
-static void
-icvExpandBaseLevelC3( _CvPyramidC3 * base_p, _CvPyramidC3 * p,
- _CvPyramidBaseC3 * start, int width )
-{
- int x = (int)((_CvPyramidBaseC3 *) base_p - start);
- int y = x / width;
-
- x -= y * width;
- p->a = 1;
- p->rect.x1 = (ushort) x;
- p->rect.y1 = (ushort) y;
- p->rect.x2 = (ushort) (x + 1);
- p->rect.y2 = (ushort) (y + 1);
- p->c = base_p->c;
-}
-
-CvStatus
-icvSegmentClusterC3( CvSeq * cmp_seq, CvSeq * res_seq,
- double threshold,
- _CvPyramidC3 * first_level_end, CvSize first_level_size )
-{
- const double eps = 1.;
- CvSeqWriter writer;
- CvSeqReader reader;
- _CvPyramidC3 temp_cmp;
- _CvPyramidBaseC3 *first_level_start = (_CvPyramidBaseC3 *) first_level_end -
- first_level_size.width * first_level_size.height;
- int i, count = cmp_seq->total;
- int c_blue, c_green, c_red;
-
- cvStartReadSeq( cmp_seq, &reader, 0 );
- cvStartAppendToSeq( res_seq, &writer );
-
- if( threshold < eps )
- {
- /* if threshold is too small then simply copy all
- the components to the output sequence */
- for( i = 0; i < count; i++ )
- {
- CvConnectedComp comp;
- _CvPyramidC3 *cmp = (_CvPyramidC3 *) (((_CvListNode *) reader.ptr)->data);
- Cv32suf _c;
-
- if( cmp < first_level_end )
- {
- icvExpandBaseLevelC3( cmp, &temp_cmp, first_level_start,
- first_level_size.width );
- cmp = &temp_cmp;
- }
-
- c_blue = cvRound( cmp->c.blue );
- c_green = cvRound( cmp->c.green );
- c_red = cvRound( cmp->c.red );
- _c.i = c_blue; cmp->c.blue = _c.f;
- _c.i = c_green; cmp->c.green = _c.f;
- _c.i = c_red; cmp->c.red = _c.f;
- comp.value = cvScalar( c_blue, c_green, c_red );
- comp.area = cmp->a;
- comp.rect.x = cmp->rect.x1;
- comp.rect.y = cmp->rect.y1;
- comp.rect.width = cmp->rect.x2 - cmp->rect.x1;
- comp.rect.height = cmp->rect.y2 - cmp->rect.y1;
- comp.contour = 0;
-
- CV_WRITE_SEQ_ELEM( comp, writer );
- CV_NEXT_SEQ_ELEM( sizeof( _CvListNode ), reader );
- }
- }
- else
- {
- _CvListNode stub_node;
- _CvListNode *prev = &stub_node;
-
- stub_node.next = 0;
-
- for( i = 0; i < count; i++ )
- {
- _CvListNode *node = (_CvListNode *) reader.ptr;
-
- prev->next = node;
- prev = node;
- CV_NEXT_SEQ_ELEM( sizeof( _CvListNode ), reader );
- }
- prev->next = 0;
- prev = stub_node.next;
-
- while( prev )
- {
- _CvListNode *node = prev->next;
- _CvListNode *acc = prev;
- _CvPyramidC3 *cmp = (_CvPyramidC3 *) (acc->data);
- CvConnectedComp comp;
- _CvRGBf c0 = cmp->c;
-
- if( cmp < first_level_end )
- {
- icvExpandBaseLevelC3( cmp, &temp_cmp, first_level_start,
- first_level_size.width );
- }
- else
- {
- temp_cmp = *cmp;
- temp_cmp.c.blue *= temp_cmp.a;
- temp_cmp.c.green *= temp_cmp.a;
- temp_cmp.c.red *= temp_cmp.a;
- }
-
- acc->next = 0;
- stub_node.next = 0;
- prev = &stub_node;
-
- while( node )
- {
- cmp = (_CvPyramidC3 *) (node->data);
- if( _CV_RGB_DIST( c0, cmp->c ) < threshold )
- {
- _CvPyramidC3 temp;
-
- /* exclude from global list and add to list of joint component */
- prev->next = node->next;
- node->next = acc;
- acc = node;
-
- if( cmp < first_level_end )
- {
- icvExpandBaseLevelC3( cmp, &temp, first_level_start,
- first_level_size.width );
- cmp = &temp;
- }
-
- temp_cmp.a += cmp->a;
- temp_cmp.c.blue += cmp->c.blue * cmp->a;
- temp_cmp.c.green += cmp->c.green * cmp->a;
- temp_cmp.c.red += cmp->c.red * cmp->a;
- icvMaxRoi( &(temp_cmp.rect), &(cmp->rect) );
- }
- else
- {
- if( prev == &stub_node )
- {
- stub_node.next = node;
- }
- prev = node;
- }
- node = prev->next;
- }
-
- if( temp_cmp.a != 0 )
- {
- c_blue = cvRound( temp_cmp.c.blue / temp_cmp.a );
- c_green = cvRound( temp_cmp.c.green / temp_cmp.a );
- c_red = cvRound( temp_cmp.c.red / temp_cmp.a );
- }
- else
- {
- c_blue = cvRound( c0.blue );
- c_green = cvRound( c0.green );
- c_red = cvRound( c0.red );
- }
- node = acc;
-
- while( node )
- {
- Cv32suf _c;
- cmp = (_CvPyramidC3 *) (node->data);
- _c.i = c_blue; cmp->c.blue = _c.f;
- _c.i = c_green; cmp->c.green = _c.f;
- _c.i = c_red; cmp->c.red = _c.f;
- node = node->next;
- }
-
- comp.value = cvScalar( c_blue, c_green, c_red );
- comp.area = temp_cmp.a;
- comp.rect.x = temp_cmp.rect.x1;
- comp.rect.y = temp_cmp.rect.y1;
- comp.rect.width = temp_cmp.rect.x2 - temp_cmp.rect.x1;
- comp.rect.height = temp_cmp.rect.y2 - temp_cmp.rect.y1;
- comp.contour = 0;
-
- CV_WRITE_SEQ_ELEM( comp, writer );
- prev = stub_node.next;
- }
- }
-
- cvEndWriteSeq( &writer );
- return CV_OK;
-}
-
-/****************************************************************************************\
-
- definition of the maximum roi size
-
-\****************************************************************************************/
-void
-icvMaxRoi( _CvRect16u * max_rect, _CvRect16u * cur_rect )
-{
- if( max_rect->x2 == 0 )
- *max_rect = *cur_rect;
- else
- {
- if( max_rect->x1 > cur_rect->x1 )
- max_rect->x1 = cur_rect->x1;
- if( max_rect->y1 > cur_rect->y1 )
- max_rect->y1 = cur_rect->y1;
-
- if( max_rect->x2 < cur_rect->x2 )
- max_rect->x2 = cur_rect->x2;
- if( max_rect->y2 < cur_rect->y2 )
- max_rect->y2 = cur_rect->y2;
- }
-}
-
-void
-icvMaxRoi1( _CvRect16u * max_rect, int x, int y )
-{
- if( max_rect->x2 == 0 )
- {
- max_rect->x1 = (ushort) x;
- max_rect->y1 = (ushort) y;
-
- ++x;
- ++y;
-
- max_rect->x2 = (ushort) x;
- max_rect->y2 = (ushort) y;
- }
- else
- {
- if( max_rect->x1 > x )
- max_rect->x1 = (ushort) x;
- if( max_rect->y1 > y )
- max_rect->y1 = (ushort) y;
-
- ++x;
- ++y;
-
- if( max_rect->x2 < x )
- max_rect->x2 = (ushort) x;
- if( max_rect->y2 < y )
- max_rect->y2 = (ushort) y;
- }
-}
-
-
-/*F///////////////////////////////////////////////////////////////////////////////////////
-// Name: cvPyrSegmentation
-// Purpose:
-// segments an image using pyramid-linking technique
-// Context:
-// Parameters:
-// src - source image
-// dst - destination image
-// comp - pointer to returned connected component sequence
-// storage - where the sequence is stored
-// level - maximal pyramid level
-// threshold1 - first threshold, affecting on detalization level when pyramid
-// is built.
-// threshold2 - second threshold - affects on final components merging.
-// Returns:
-// Notes:
-// Source and destination image must be equal types and channels
-//F*/
-CV_IMPL void
-cvPyrSegmentation( IplImage * src,
- IplImage * dst,
- CvMemStorage * storage,
- CvSeq ** comp, int level, double threshold1, double threshold2 )
-{
- CvSize src_size, dst_size;
- uchar *src_data = 0;
- uchar *dst_data = 0;
- int src_step = 0, dst_step = 0;
- int thresh1 = cvRound( threshold1 );
- int thresh2 = cvRound( threshold2 );
-
- CV_FUNCNAME( "cvPyrSegmentation" );
-
- __BEGIN__;
-
- if( src->depth != IPL_DEPTH_8U )
- CV_ERROR( CV_BadDepth, cvUnsupportedFormat );
-
- if( src->depth != dst->depth || src->nChannels != dst->nChannels )
- CV_ERROR( CV_StsBadArg, "src and dst have different formats" );
-
- cvGetRawData( src, &src_data, &src_step, &src_size );
- cvGetRawData( dst, &dst_data, &dst_step, &dst_size );
-
- if( src_size.width != dst_size.width ||
- src_size.height != dst_size.height )
- CV_ERROR( CV_StsBadArg, "src and dst have different ROIs" );
-
- switch (src->nChannels)
- {
- case 1:
- IPPI_CALL( icvPyrSegmentation8uC1R( src_data, src_step,
- dst_data, dst_step,
- src_size,
- CV_GAUSSIAN_5x5,
- comp, storage, level, thresh1, thresh2 ));
- break;
- case 3:
- IPPI_CALL( icvPyrSegmentation8uC3R( src_data, src_step,
- dst_data, dst_step,
- src_size,
- CV_GAUSSIAN_5x5,
- comp, storage, level, thresh1, thresh2 ));
- break;
- default:
- CV_ERROR( CV_BadNumChannels, cvUnsupportedFormat );
- }
- __END__;
-}
-
-
-/* End of file. */
projects / opencv / blobdiff