資源簡介
基于NSCT的圖像增強,matlab程序,可以直接運行,對初學(xué)著有很大幫助

代碼片段和文件信息
/******************************************************************
*?atrousc.c?-??Written?by?Arthur?Cunha.?This?routine?builds?up?on?
*???????????????zconv2D_OS.c?written?by?Jason?Laska
*
*?Inputs:???x?-?A?2D?signal
*???????????h?-?2D?filter
*???????????m?-?separable?upsampling?matrix
*?????????
*?Outputs:??y?-?2D?result?of?convolution?with?filter?
*???????????upsampled?by?a?m?only?the?‘valid‘?part?is?returned.
*???????????Similar?to?conv2(xh‘valid‘)?where?h?is?the?upsampled
*???????????filter.
*??
*??????????
*
*?Usage:????y?=?zconv2D_O(xhm);
*
*?Notes:????This?function?does?not?actually?upsample?the?filter?
*???????????it?computes?the?convolution?as?if?the?filter?had?been?
*???????????upsampled.?This?is?the?ultimate?optimized?version.
*???????????Further?optimized?for?separable?(diagonal)?upsampling?matrices.
*
*?This?is?a?MEX-FILE?for?matlab
*
/********************************************************/
#include?“mex.h“
#include?
//Constants?for?matlab?interfacing
#define?OUT?????plhs[0]
#define?SIGNAL??prhs[0]?//flip?and?shift
#define?FILTER??prhs[1]?//stationary
#define?MMATRIX?prhs[2]
//MACRO?for?converting?positions?to?linear
#define?LINPOS(rowcolcollen)?(row*collen)+col
void?mexFunction(int?nlhs?mxArray?*plhs[]?int?nrhs?const?mxArray?*prhs[])
{
????//Declarations
???double?*FArray*SArray*outArray*M;
/*?FArray???-?Filter?coefficients
???SArray???-?Signal?coefficients
???outArray?-?Output?coefficients
???M????????-?upsampling?matrix? */
???int?SColLengthSRowLengthFColLengthFRowLengthO_SColLengthO_SRowLength;
???int?SFColLengthSFRowLength;
???int?n1n2l1l2k1k2f1f2?kk2?kk1;
???double?sum;???
???int?M0M3sM0sM3;
????//Get?the?input?sizes
????SColLength?=?mxGetM(SIGNAL);?
????SRowLength?=?mxGetN(SIGNAL);
????FColLength?=?mxGetM(FILTER);?
????FRowLength?=?mxGetN(FILTER);
????
????SFColLength?=?FColLength-1;
????SFRowLength?=?FRowLength-1;
????
//Get?The?Data
????FArray?=?mxGetPr(FILTER);
????SArray?=?mxGetPr(SIGNAL);
????M?=?mxGetPr(MMATRIX);
????M0?=?(int)M[0];????
????M3?=?(int)M[3];???
????sM0?=?M0-1;
????sM3?=?M3-1;
????
//?Corrected?Lengths
O_SColLength?=?SColLength?-?M0*FColLength?+?1;
O_SRowLength?=?SRowLength?-?M3*FRowLength?+?1;
????//Make?output?size?and?Allocate?out?vector
????
?
????OUT??????=?mxCreateDoubleMatrix(O_SColLength?O_SRowLength?mxREAL);?
????outArray?=?mxGetPr(OUT); //outArray?is?new?vector
?
/*?Convoluyion?loop?*/
????for?(n1=0;n1 for?(n2=0;n2 sum=0; ????
????kk1?=?n1?+?sM0;;
for?(k1=0;k1 ?? ????kk2?=?n2?+?sM3;
for?(k2=0;k2 ?f1?=?SFRowLength?-?k1;?/*?flipped?index?*/
?f2?=?SFColLength?-?k2;??
?sum+=?FArray[LINPOS(f1f2FColLength)]?*?SArray[LINPOS(kk1kk2SColLength)];
?kk2+=M3;
}
kk1+=M0;
}?
????outArray[LINPOS(n1n2O_SColLength)]?=?sum;
}
}
????return;
}
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????2969??2004-10-17?16:42??enhancement_ba
?????文件???????7168??2004-10-17?16:45??enhancement_ba
?????文件???????8664??2005-01-24?21:51??enhancement_ba
?????文件???????7680??2013-06-27?15:27??enhancement_ba
?????文件???????1234??2005-11-03?09:10??enhancement_ba
?????文件??????19406??2004-09-09?15:01??enhancement_ba
?????文件???????1012??2004-10-17?16:45??enhancement_ba
?????文件?????177851??2003-11-11?01:45??enhancement_ba
?????文件????1456787??2012-07-08?10:07??enhancement_ba
?????文件????1456787??2012-07-08?10:09??enhancement_ba
?????文件????1456787??2012-07-08?10:10??enhancement_ba
?????文件????1456787??2012-07-08?10:12??enhancement_ba
?????文件????1456787??2012-07-08?10:13??enhancement_ba
?????文件???????7258??2012-10-29?15:08??enhancement_ba
?????文件???????1520??2014-04-04?10:41??enhancement_ba
?????文件??????13234??2004-10-18?12:28??enhancement_ba
?????文件???????2607??2004-12-22?21:26??enhancement_ba
?????文件???????1103??2003-04-10?11:30??enhancement_ba
?????文件???????1861??2003-11-06?00:25??enhancement_ba
?????文件????????856??2003-04-10?11:30??enhancement_ba
?????文件????????662??2003-11-05?10:17??enhancement_ba
?????文件????????854??2003-11-05?10:19??enhancement_ba
?????文件????????775??2003-04-10?11:30??enhancement_ba
?????文件?????263222??2012-10-08?09:36??enhancement_ba
?????文件?????263222??2012-10-19?11:41??enhancement_ba
?????文件?????263222??2012-10-08?09:37??enhancement_ba
?????文件???????4662??2005-11-03?10:47??enhancement_ba
?????文件???????3257??2005-11-03?10:33??enhancement_ba
?????文件???????5046??2005-01-20?23:13??enhancement_ba
?????文件???????4931??2005-01-20?23:14??enhancement_ba
............此處省略25個文件信息
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