本文整理汇总了C++中ofxCvColorImage::setROI方法的典型用法代码示例。如果您正苦于以下问题：C++ ofxCvColorImage::setROI方法的具体用法？C++ ofxCvColorImage::setROI怎么用？C++ ofxCvColorImage::setROI使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ofxCvColorImage的用法示例。
在下文中一共展示了ofxCvColorImage::setROI方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: monoCmonoB
//.........这里部分代码省略.........
if (targW < targW_inAspect) {
left -= (targW_inAspect-targW)/2;
targW = targW_inAspect;
}
else {
int targH_inAspect = targW/inAspect;
top -= (targH_inAspect-targH)/2;
targH = targH_inAspect;
}
}
else {
targW = cropW;
targH = cropH;
// centroid of all blobs
top = (float)(top+max_y)/2;
top -= ((float)targH/2);
left = (float)(left+max_x)/2;
left -= ((float)targW/2);
}
int out_left = 0;
// int out_H = outH;
copyRegion( fullFrame, left, top, targW, targH,
outputImg, out_left, out_H_gap, outW, out_H_in_aspect);
}
}
///*****************************************************************
/// MULTICHANNEL
///******************************************************************/
void testApp::multiC(){
int numBlobs = lastBlobs.size();
if (numBlobs > 0) {
// calculate number of rows & columns needeed
float sqroot = sqrtf(numBlobs);
float trun = truncf(sqroot);
float rnd = roundf(sqroot);
if (trun == rnd) rnd +=0.5;
else trun += 0.5;
int rows = (int)roundf(trun);
if (rows <= 0) rows = 1;
int cols = (int)roundf(rnd);
if (cols <= 0) cols = 1;
// calculate channel width and height
int channelW = (float)outW/(float)cols;
int channelH = channelW/outAspect;
int comonGap = (outH-channelH*rows)/2;
int channelGap = out_H_gap*((float)channelH/(float)outH); // letterbox black zones height
// draw channels to output buffer image
for (int i =0; i < numBlobs;i++) {
int dx = (i%cols)*channelW;
int dy = comonGap+(i/cols)*(channelH+channelGap);
targW = cropW;
targH = cropH;
top = 0;
left = 0;
if (bZoomTarget) {
top = lastBlobs[i].boundingRect.y;
left = lastBlobs[i].boundingRect.x;
targW = lastBlobs[i].boundingRect.width;
targH = lastBlobs[i].boundingRect.height;
targW = MAX(targW, targH/inAspect);
targH = MAX(targH, targW*inAspect);
}
else {
top = lastBlobs[i].centroid.y;
left = lastBlobs[i].centroid.x;
}
// whithout the (float) casting a segmentation fault occurs
top = in_out_scale*(float)top;
top -= ((float)targH/2);
left = in_out_scale*(float)left;
left -= ((float)targW/2);
copyRegion( fullFrame, left, top, targW, targH,
outputImg, dx, dy, channelW, channelH);
}
}
}
///*****************************************************************
/// COPY REGION
///******************************************************************/
void testApp::copyRegion(ofxCvColorImage &src, int &sx, int &sy, int &sw, int &sh,
ofxCvColorImage &dst, int &dx, int &dy, int &dw, int &dh){
if (sy < 0) sy = 0;
else if (sy > src.height-sh) sy = src.height-sh;
if (sx < 0) sx = 0;
else if (sx > src.width-sw) sx = src.width-sw;
src.setROI(sx, sy, sw, sh );
dst.setROI(dx,dy,dw, dh);
dst.scaleIntoMe(src, CV_INTER_NN);
dst.resetROI();
src.resetROI();
}