モザイク処理（C++/CLI）。モザイクサイズについてはちょっと修正の必要あり。

MosaicCV.cpp

int blue, green , red;
int tmp1, tmp2;
int x, y;
int size = 10;//モザイクサイズ

for(int y=0;y<img_frame->height;y+=size){
 for(int x=0;x<img_frame->width;x+=size){
	blue = 0;
	green = 0;
	red = 0;
								
	for(int i=0;i<size;i++){
		if( img_frame->height < (y + i) ){
			break;
		}
		tmp1 = i;
		for(int j=0;j<size;j++){
  		if( img_frame->width < (x + j) ){
				break;
			}
  		blue += (unsigned char)img_frame->imageData[img_frame->widthStep * (y + i) + (x + j) * 3];
			green += (unsigned char)img_frame->imageData[img_frame->widthStep * (y + i) + (x + j)* 3 + 1];
			red += (unsigned char)img_frame->imageData[img_frame->widthStep * (y + i) + (x + j) * 3 + 2];
			tmp2 = j;
	  }
	}
	tmp1++;
	tmp2++;
	for(int i=0;i<tmp1;i++){
		for(int j=0;j<tmp2;j++){
			img_frame->imageData[img_frame->widthStep * (y + i) + (x + j) * 3] = cvRound(blue / (tmp1 * tmp2));
			img_frame->imageData[img_frame->widthStep * (y + i) + (x + j) * 3 + 1] = cvRound(green / (tmp1 * tmp2));
			img_frame->imageData[img_frame->widthStep * (y + i) + (x + j) * 3 + 2] = cvRound(red / (tmp1 * tmp2));
		}
	}
}