void prepareBuffer(IplImage* imgSrc,int iterTime)
{
struct param par;
par.iWidth = imgSrc->width;
par.iHeight = imgSrc->height;
par.it = iterTime;
par.mean = imgMean(imgSrc);
par.q0 = imgQ0(imgSrc,par.mean);
cl_int ret;
cmPar = clCreateBuffer(cxGPUContext, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR,sizeof(struct param),&par,&ret);
openclRetTackle(ret,"clCreateBuffer const");
int iStep = imgSrc->widthStep;
float* initMem = (float*)malloc(sizeof(float) * par.iWidth * par.iHeight);
memset(initMem,0,sizeof(float)* par.iWidth * par.iHeight);
for(int i=0;i<imgSrc->height;i++)
{
for(int j=0;j<imgSrc->widthStep;j++)
{
initMem[i*par.iWidth+j]=(unsigned char)imgSrc->imageData[i*iStep+j];
}
}
cmImgSrc = clCreateBuffer(cxGPUContext, CL_MEM_READ_WRITE | CL_MEM_COPY_HOST_PTR,sizeof(float) * par.iWidth * par.iHeight,initMem,&ret);
openclRetTackle(ret,"clCreateBuffer cmImgSrc");
cmImgDes = clCreateBuffer(cxGPUContext, CL_MEM_READ_WRITE, sizeof(float) * par.iWidth * par.iHeight,0,&ret);
openclRetTackle(ret,"clCreateBuffer cmImgDes");
cmCqM = clCreateBuffer(cxGPUContext, CL_MEM_READ_WRITE, sizeof(float) * par.iWidth * par.iHeight, 0, &ret);
openclRetTackle(ret,"clCreateBuffer cmCqM");
}
utils::Point CurvatureFeatureExtractor::computeMean(std::vector<int> &imgIDs, int w){
std::vector<utils::Point> points = createPointsFromIDs(imgIDs, w);
utils::Point imgMean(0,0);
for(unsigned int i=0; i<points.size(); i++){
imgMean.x+=points[i].x;
imgMean.y+=points[i].y;
}
imgMean.x/=points.size();
imgMean.y/=points.size();
return imgMean;
}
