16acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn/*M/////////////////////////////////////////////////////////////////////////////////////// 26acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// 36acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. 46acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// 56acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// By downloading, copying, installing or using the software you agree to this license. 66acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// If you do not agree to this license, do not download, install, 76acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// copy or use the software. 86acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// 96acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// 106acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// Intel License Agreement 116acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// For Open Source Computer Vision Library 126acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// 136acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// Copyright (C) 2000, Intel Corporation, all rights reserved. 146acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// Third party copyrights are property of their respective owners. 156acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// 166acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// Redistribution and use in source and binary forms, with or without modification, 176acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// are permitted provided that the following conditions are met: 186acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// 196acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// * Redistribution's of source code must retain the above copyright notice, 206acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// this list of conditions and the following disclaimer. 216acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// 226acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// * Redistribution's in binary form must reproduce the above copyright notice, 236acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// this list of conditions and the following disclaimer in the documentation 246acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// and/or other materials provided with the distribution. 256acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// 266acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// * The name of Intel Corporation may not be used to endorse or promote products 276acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// derived from this software without specific prior written permission. 286acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// 296acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// This software is provided by the copyright holders and contributors "as is" and 306acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// any express or implied warranties, including, but not limited to, the implied 316acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// warranties of merchantability and fitness for a particular purpose are disclaimed. 326acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// In no event shall the Intel Corporation or contributors be liable for any direct, 336acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// indirect, incidental, special, exemplary, or consequential damages 346acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// (including, but not limited to, procurement of substitute goods or services; 356acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// loss of use, data, or profits; or business interruption) however caused 366acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// and on any theory of liability, whether in contract, strict liability, 376acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// or tort (including negligence or otherwise) arising in any way out of 386acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// the use of this software, even if advised of the possibility of such damage. 396acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn// 406acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn//M*/ 416acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 426acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn#include "_cv.h" 436acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 446acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Rennstatic void 456acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius RennicvAdaptiveThreshold_MeanC( const CvMat* src, CvMat* dst, int method, 466acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn int maxValue, int type, int size, double delta ) 476acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn{ 486acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CvMat* mean = 0; 496acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_FUNCNAME( "icvAdaptiveThreshold_MeanC" ); 506acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 516acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn __BEGIN__; 526acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 536acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn int i, j, rows, cols; 546acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn int idelta = type == CV_THRESH_BINARY ? cvCeil(delta) : cvFloor(delta); 556acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn uchar tab[768]; 566acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 576acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn if( size <= 1 || (size&1) == 0 ) 586acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_ERROR( CV_StsOutOfRange, "Neighborhood size must be >=3 and odd (3, 5, 7, ...)" ); 596acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 606acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn if( maxValue < 0 ) 616acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn { 626acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_CALL( cvSetZero( dst )); 636acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn EXIT; 646acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn } 656acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 666acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn rows = src->rows; 676acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn cols = src->cols; 686acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 696acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn if( src->data.ptr != dst->data.ptr ) 706acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn mean = dst; 716acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn else 726acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_CALL( mean = cvCreateMat( rows, cols, CV_8UC1 )); 736acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 746acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_CALL( cvSmooth( src, mean, method == CV_ADAPTIVE_THRESH_MEAN_C ? 756acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_BLUR : CV_GAUSSIAN, size, size )); 766acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn if( maxValue > 255 ) 776acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn maxValue = 255; 786acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 796acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn if( type == CV_THRESH_BINARY ) 806acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn for( i = 0; i < 768; i++ ) 816acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn tab[i] = (uchar)(i - 255 > -idelta ? maxValue : 0); 826acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn else 836acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn for( i = 0; i < 768; i++ ) 846acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn tab[i] = (uchar)(i - 255 <= -idelta ? maxValue : 0); 856acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 866acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn for( i = 0; i < rows; i++ ) 876acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn { 886acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn const uchar* s = src->data.ptr + i*src->step; 896acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn const uchar* m = mean->data.ptr + i*mean->step; 906acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn uchar* d = dst->data.ptr + i*dst->step; 916acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 926acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn for( j = 0; j < cols; j++ ) 936acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn d[j] = tab[s[j] - m[j] + 255]; 946acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn } 956acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 966acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn __END__; 976acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 986acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn if( mean != dst ) 996acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn cvReleaseMat( &mean ); 1006acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn} 1016acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 1026acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 1036acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius RennCV_IMPL void 1046acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius RenncvAdaptiveThreshold( const void *srcIm, void *dstIm, double maxValue, 1056acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn int method, int type, int blockSize, double param1 ) 1066acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn{ 1076acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CvMat src_stub, dst_stub; 1086acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CvMat *src = 0, *dst = 0; 1096acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 1106acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_FUNCNAME( "cvAdaptiveThreshold" ); 1116acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 1126acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn __BEGIN__; 1136acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 1146acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn if( type != CV_THRESH_BINARY && type != CV_THRESH_BINARY_INV ) 1156acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_ERROR( CV_StsBadArg, "Only CV_TRESH_BINARY and CV_THRESH_BINARY_INV " 1166acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn "threshold types are acceptable" ); 1176acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 1186acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_CALL( src = cvGetMat( srcIm, &src_stub )); 1196acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_CALL( dst = cvGetMat( dstIm, &dst_stub )); 1206acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 1216acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn if( !CV_ARE_CNS_EQ( src, dst )) 1226acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_ERROR( CV_StsUnmatchedFormats, "" ); 1236acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 1246acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn if( CV_MAT_TYPE(dst->type) != CV_8UC1 ) 1256acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_ERROR( CV_StsUnsupportedFormat, "" ); 1266acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 1276acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn if( !CV_ARE_SIZES_EQ( src, dst ) ) 1286acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_ERROR( CV_StsUnmatchedSizes, "" ); 1296acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 1306acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn switch( method ) 1316acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn { 1326acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn case CV_ADAPTIVE_THRESH_MEAN_C: 1336acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn case CV_ADAPTIVE_THRESH_GAUSSIAN_C: 1346acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_CALL( icvAdaptiveThreshold_MeanC( src, dst, method, cvRound(maxValue),type, 1356acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn blockSize, param1 )); 1366acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn break; 1376acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn default: 1386acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn CV_ERROR( CV_BADCOEF_ERR, "" ); 1396acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn } 1406acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 1416acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn __END__; 1426acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn} 1436acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn 1446acb9a7ea3d7564944e12cbc73a857b88c1301eeMarius Renn/* End of file. */ 145