#include?“CVobject.h“
//Download?by?http://www.NewXing.com
#include?
#include?
#include?
using?namespace?std;

void?cvThresholdBidirection（IplImage*?imgint?lowerint?upper）
{
	assert（img->nChannels==1）;
	for?（int?h=0;hheight;h++）{
		for?（int?w=0;wwidth;w++）{
			unsigned?char*?p?=（unsigned?char*）（img->imageData+h*img->widthStep+w）;
			if?（*p<=upper&&*p>=lower）{
				*p=255;
			}else{
				*p=0;
			}
		}
	}
}

void?cvFindTargets（const?IplImage*?img_const?int?erea_thresholdCvTarget?&targets）
{
	assert（img_->nChannels==1）;

	IplImage*?img=cvCreateImage（cvSize（img_->widthimg_->height）IPL_DEPTH_8U1）;
	cvCopy（img_img）;

	CvTarget?tar;
	for?（int?h=0;hheight;h++）{
		for?（int?w=0;wwidth;w++）{
			if?（*（unsigned?char*）（img->imageData+h*img->widthStep+w）==255）{
				CvTarget?target;
				target.top=h;
				target.bottom=h;
				target.left=w;
				target.right=w;
				queue?points;
				points.push（cvPoint（wh））;
				*（img->imageData+h*img->widthStep+w）=0;
				//find?target?with?breadth?iteration
				while（!points.empty（））{
					target.erea++;
					CvPoint?p=points.front（）;
					points.pop（）;					

					if?（p.x>0&&*（unsigned?char*）（img->imageData+p.y*img->widthStep+p.x-1）==255）{//left
						*（img->imageData+p.y*img->widthStep+p.x-1）=0;					
						points.push（cvPoint（p.x-1p.y））;
						if?（target.left>p.x-1）{
							target.left=p.x-1;
						}
					}
					if?（p.y+1height&&*（unsigned?char*）（img->imageData+（p.y+1）*img->widthStep+p.x）==255）{//bottom
						*（img->imageData+（p.y+1）*img->widthStep+p.x）=0;					
						points.push（cvPoint（p.xp.y+1））;
						if?（target.bottom							target.bottom=p.y+1;
						}
					}
					if?（p.x+1width&&*（unsigned?char*）（img->imageData+p.y*img->widthStep+p.x+1）==255）{//right
						*（img->imageData+p.y*img->widthStep+p.x+1）=0;					
						points.push（cvPoint（p.x+1p.y））;
						if?（target.right							target.right=p.x+1;
						}
					}
					if?（p.y>0&&*（unsigned?char*）（img->imageData+（p.y-1）*img->widthStep+p.x）==255）{//top
						*（img->imageData+（p.y-1）*img->widthStep+p.x）=0;					
						points.push（cvPoint（p.xp.y-1））;
					}
				}
				if?（target.erea>erea_threshold）{
					if?（target.erea>tar.erea）{
						tar=target;
					}
				}				
			}
		}
	}
	targets=tar;
	cvReleaseImage（&img）;
}

?屬性????????????大小?????日期????時(shí)間???名稱
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?????文件??????41078??2010-11-26?16:34??www.NewXing.com\samples\down-000.bmp

?????文件??????41078??2010-11-26?16:35??www.NewXing.com\samples\down-001.bmp

?????文件??????41078??2010-11-26?16:35??www.NewXing.com\samples\down-002.bmp

?????文件??????41078??2010-11-26?16:35??www.NewXing.com\samples\down-003.bmp

?????文件??????41078??2010-11-26?16:35??www.NewXing.com\samples\down-004.bmp

?????文件??????41078??2010-11-26?16:35??www.NewXing.com\samples\down-005.bmp

?????文件??????41078??2010-11-26?16:36??www.NewXing.com\samples\down-006.bmp

?????文件??????41078??2010-11-26?16:36??www.NewXing.com\samples\down-007.bmp

?????文件??????41078??2010-11-26?16:36??www.NewXing.com\samples\down-008.bmp

?????文件??????41078??2010-11-26?16:36??www.NewXing.com\samples\down-009.bmp

?????文件??????41078??2010-11-26?16:36??www.NewXing.com\samples\down-010.bmp

?????文件??????41078??2010-11-26?16:36??www.NewXing.com\samples\down-011.bmp

?????文件??????41078??2010-11-26?16:36??www.NewXing.com\samples\down-012.bmp

?????文件??????41078??2010-11-26?16:36??www.NewXing.com\samples\down-013.bmp

?????文件??????41078??2010-11-26?16:37??www.NewXing.com\samples\down-014.bmp

?????文件??????41078??2010-11-26?16:37??www.NewXing.com\samples\down-015.bmp

?????文件??????41078??2010-11-26?16:37??www.NewXing.com\samples\down-016.bmp

?????文件??????41078??2010-11-26?16:37??www.NewXing.com\samples\down-017.bmp

?????文件??????41078??2010-11-26?16:37??www.NewXing.com\samples\down-018.bmp

?????文件??????41078??2010-11-26?16:37??www.NewXing.com\samples\down-019.bmp

?????文件??????41078??2010-11-26?16:38??www.NewXing.com\samples\down-020.bmp

?????文件??????41078??2010-11-26?16:38??www.NewXing.com\samples\down-021.bmp

?????文件??????41078??2010-11-26?16:38??www.NewXing.com\samples\down-022.bmp

?????文件??????41078??2010-11-26?16:38??www.NewXing.com\samples\down-023.bmp

?????文件??????41078??2010-11-26?16:38??www.NewXing.com\samples\down-024.bmp

?????文件??????41078??2010-11-26?16:38??www.NewXing.com\samples\down-025.bmp

?????文件??????41078??2010-11-26?16:38??www.NewXing.com\samples\down-026.bmp

?????文件??????41078??2010-11-26?16:38??www.NewXing.com\samples\down-027.bmp

?????文件??????41078??2010-11-26?16:39??www.NewXing.com\samples\down-028.bmp

?????文件??????41078??2010-11-26?16:39??www.NewXing.com\samples\down-029.bmp

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