win7+Matlab2011b+VS2005环境下运行Deformable Part Models(voc-release4.01)目标检测matlab源码
配置方法如下：
1.打开voc-release4.01文件夹，在命令窗口输入：
mex -setup2.回车后会出现：
Would you like mex to locate installed compilers [y]/n? n
输入n
3.之后会出现如下内容：
Select a compiler: [1] Intel C++ 12.0 (with Microsoft Visual C++ 2008 SP1 linker) [2] Intel C++ 12.0 (with Microsoft Visual C++ 2010 linker) [3] Intel C++ 11.1 (with Microsoft Visual C++ 2008 SP1 linker) [4] Intel Visual Fortran 12.0 (with Microsoft Visual C++ 2008 SP1 linker) [5] Intel Visual Fortran 12.0 (with Microsoft Visual C++ 2008 Shell linker) [6] Intel Visual Fortran 12.0 (with Microsoft Visual C++ 2010 linker) [7] Intel Visual Fortran 11.1 (with Microsoft Visual C++ 2008 SP1 linker) [8] Intel Visual Fortran 11.1 (with Microsoft Visual C++ 2008 Shell linker) [9] Lcc-win32 C 2.4.1 [10] Microsoft Software Development Kit (SDK) 7.1 [11] Microsoft Visual C++ 6.0 [12] Microsoft Visual C++ 2005 SP1 [13] Microsoft Visual C++ 2008 SP1 [14] Microsoft Visual C++ 2010 [15] Microsoft Visual C++ 2010 Express [16] Open WATCOM C++ [0] None我的机器是使用vs2005，选择12
4.回车后会出现如下提示：
C:\Program Files\Microsoft Visual Studio 8. Do you want to use this compiler [y]/n? y选择y，回车，继续确认，直到出现Done . . .
5.配置好后，在命令窗中输入compile，回车运行，会出现如下错误：
resize.cc resize.cc(36) : error C2057: expected constant expression resize.cc(36) : error C2466: cannot allocate an array of constant size 0 resize.cc(36) : error C2133: 'ofs' : unknown size resize.cc(70) : error C3861: 'bzero': identifier not found resize.cc(95) : error C3861: 'round': identifier not found resize.cc(96) : error C3861: 'round': identifier not found E:\MATLAB~1\BIN\MEX.PL: Error: Compile of 'resize.cc' failed. Error using mex (line 206) Unable to complete successfully. Error in compile (line 1) mex -O resize.cc
6.打开compile文件， 发现首先会编译resize.cc，dt.cc，features.cc，getdetections.cc 这四个文件，既然不识别.cc文件，就将这四个.cc文件的扩展名都改为.cpp，同时也修改compile.m文件，将前四句改为：
mex -O resize.cpp mex -O dt.cpp mex -O features.cpp mex -O getdetections.cpp % use one of the following depending on your setup % 0 is fastest, 3 is slowest % 0) multithreaded convolution using SSE % mex -O fconvsse.cc -o fconv % 1) multithreaded convolution using blas % WARNING: the blas version does not work with matlab >= 2010b % and Intel CPUs % mex -O fconvblasMT.cc -lmwblas -o fconv % 2) mulththreaded convolution without blas % mex -O fconvMT.cc -o fconv % 3) convolution using blas % mex -O fconvblas.cc -lmwblas -o fconv % 4) basic convolution, very compatible % mex -O fconv.cc -o fconv mex -O fconv.cpp
7.保存后继续在命令窗compile，会出现如下错误：
resize.cpp resize.cpp(36) : error C2057: expected constant expression resize.cpp(36) : error C2466: cannot allocate an array of constant size 0 resize.cpp(36) : error C2133: 'ofs' : unknown size resize.cpp(70) : error C3861: 'bzero': identifier not found resize.cpp(95) : error C3861: 'round': identifier not found resize.cpp(96) : error C3861: 'round': identifier not found E:\MATLAB~1\BIN\MEX.PL: Error: Compile of 'resize.cpp' failed. Error using mex (line 206) Unable to complete successfully. Error in compile (line 1) mex -O resize.cpp8.在resize.cpp文件中的开始部分 加上bzero和round的定义
#define bzero(a,b) memset(a,0,b)
int round(float a){float tmp=a-(int)a;if(tmp>=0.5) return(int)a+1;else return (int)a;}
并并修改ofs数组的定义，将
alphainfo ofs[len];
改为
alphainfo *ofs = new alphainfo[len];当然在同一作用域后面加上：
delete [] ofs;
最后resize.cpp的文件内容为：
#include <math.h>
#include <assert.h>
#include <string.h>
#include "mex.h"
#define bzero(a,b) memset(a,0,b)
int round(float a){float tmp=a-(int)a;if(tmp>=0.5) return(int)a+1;else return (int)a;}
/*
* Fast image subsampling.
* This is used to construct the feature pyramid.
*/
// struct used for caching interpolation values
struct alphainfo {
int si, di;
double alpha;
};
// copy src into dst using pre-computed interpolation values
void alphacopy(double *src, double *dst, struct alphainfo *ofs, int n) {
struct alphainfo *end = ofs + n;
while (ofs != end) {
dst[ofs->di] += ofs->alpha * src[ofs->si];
ofs++;
}
}
// resize along each column
// result is transposed, so we can apply it twice for a complete resize
void resize1dtran(double *src, int sheight, double *dst, int dheight,
int width, int chan) {
double scale = (double)dheight/(double)sheight;
double invscale = (double)sheight/(double)dheight;
// we cache the interpolation values since they can be
// shared among different columns
int len = (int)ceil(dheight*invscale) + 2*dheight;
//alphainfo ofs[len];
alphainfo *ofs = new alphainfo[len];
int k = 0;
for (int dy = 0; dy < dheight; dy++) {
double fsy1 = dy * invscale;
double fsy2 = fsy1 + invscale;
int sy1 = (int)ceil(fsy1);
int sy2 = (int)floor(fsy2);
if (sy1 - fsy1 > 1e-3) {
assert(k < len);
assert(sy-1 >= 0);
ofs[k].di = dy*width;
ofs[k].si = sy1-1;
ofs[k++].alpha = (sy1 - fsy1) * scale;
}
for (int sy = sy1; sy < sy2; sy++) {
assert(k < len);
assert(sy < sheight);
ofs[k].di = dy*width;
ofs[k].si = sy;
ofs[k++].alpha = scale;
}
if (fsy2 - sy2 > 1e-3) {
assert(k < len);
assert(sy2 < sheight);
ofs[k].di = dy*width;
ofs[k].si = sy2;
ofs[k++].alpha = (fsy2 - sy2) * scale;
}
}
// resize each column of each color channel
bzero(dst, chan*width*dheight*sizeof(double));
for (int c = 0; c < chan; c++) {
for (int x = 0; x < width; x++) {
double *s = src + c*width*sheight + x*sheight;
double *d = dst + c*width*dheight + x;
alphacopy(s, d, ofs, k);
}
}
delete []ofs;
}
// main function
// takes a double color image and a scaling factor
// returns resized image
mxArray *resize(const mxArray *mxsrc, const mxArray *mxscale) {
double *src = (double *)mxGetPr(mxsrc);
const int *sdims = mxGetDimensions(mxsrc);
if (mxGetNumberOfDimensions(mxsrc) != 3 ||
mxGetClassID(mxsrc) != mxDOUBLE_CLASS)
mexErrMsgTxt("Invalid input");
double scale = mxGetScalar(mxscale);
if (scale > 1)
mexErrMsgTxt("Invalid scaling factor");
int ddims[3];
ddims[0] = (int)round(sdims[0]*scale);
ddims[1] = (int)round(sdims[1]*scale);
ddims[2] = sdims[2];
mxArray *mxdst = mxCreateNumericArray(3, ddims, mxDOUBLE_CLASS, mxREAL);
double *dst = (double *)mxGetPr(mxdst);
double *tmp = (double *)mxCalloc(ddims[0]*sdims[1]*sdims[2], sizeof(double));
resize1dtran(src, sdims[0], tmp, ddims[0], sdims[1], sdims[2]);
resize1dtran(tmp, sdims[1], dst, ddims[1], ddims[0], sdims[2]);
mxFree(tmp);
return mxdst;
}
// matlab entry point
// dst = resize(src, scale)
// image should be color with double values
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[]) {
if (nrhs != 2)
mexErrMsgTxt("Wrong number of inputs");
if (nlhs != 1)
mexErrMsgTxt("Wrong number of outputs");
plhs[0] = resize(prhs[0], prhs[1]);
}
8.保存后继续compile,运行后结果：
dt.cpp
dt.cpp(61) : error C2065: 'int32_t' : undeclared identifier
dt.cpp(61) : error C2065: 'Ix' : undeclared identifier
dt.cpp(61) : error C2059: syntax error : ')'
dt.cpp(62) : error C2065: 'Iy' : undeclared identifier
dt.cpp(62) : error C2059: syntax error : ')'
dt.cpp(65) : error C2065: 'tmpIx' : undeclared identifier
dt.cpp(65) : error C2059: syntax error : ')'
dt.cpp(66) : error C2065: 'tmpIy' : undeclared identifier
dt.cpp(66) : error C2059: syntax error : ')'
E:\MATLAB~1\BIN\MEX.PL: Error: Compile of 'dt.cpp' failed.
解决办法是在dt.cpp文件中加入定义：
#define int32_t int
保存后再compile，出现的错误如下：
compile
features.cpp
features.cpp(48) : error C3861: 'round': identifier not found
features.cpp(49) : error C3861: 'round': identifier not found
E:\MATLAB~1\BIN\MEX.PL: Error: Compile of 'features.cpp' failed.
解决方法：
在features.cpp文件中加入round函数的定义：
int round(float a){float tmp = a-(int)a; if(tmp>=0.5) return (int)a+1;else return (int)a;} 9.保存后compile后的结果为：
compile fconv.cpp d:\智能车实验室\dpm资料\voc-release4.01\fconv.cpp(75) : error C4716: 'process' : must return a value E:\MATLAB~1\BIN\MEX.PL: Error: Compile of 'fconv.cpp' failed.
10. 修改fconv.cpp文件，将
void*process(void *thread_arg)
修改为
void process(void *thread_arg)
即去掉指针符号。
然后再次compile，没错误提示了，编译成功了。
11.在命令窗输入demo运行，可以看到DPM检测结果
参考资料：http://blog.csdn.net/masibuaa/article/details/17577195
http://blog.csdn.net/fuhpi/article/details/8767557