基于matlab的目标检测系统.zip源码73

clc; clear all; %显示并播放视频 filename='bird_brief_video.avi';%将视频作为结构体读取 info=VideoReader(filename);%获得视频信息 zhen=info.NumberOfFrames;%读取帧数，总共38帧 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %变量设置 cell=zeros(9,9);%检测元 %mean(cell(:))表示矩阵元素平均值%sum(sum(cell))所有元素求和 cell_x=68;cell_y=255; diff_R=13; diff_G=2; diff_B=3; % 设置红、绿、蓝三种颜色提取阈值（越大越严格） BIGGER=zeros(360,642); %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %逐帧操作 for i=1:23 %figure(i); frame=read(info,i);%显示每一帧，播放 gray=rgb2gray(frame); BAW = im2bw(frame,0.1);%二值化处理 R=frame(:,:,1); G=frame(:,:,2); B=frame(:,:,3);%取出RGB %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% XYR=((R-G)>diff_R&(R-B)>diff_R); % 隐藏红色 XYG=((G-R)>diff_G&(G-B)>diff_G); % 隐藏绿色 XYB=((B-R)>diff_B&(B-G)>diff_B); % 隐藏蓝色 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %寻找三色分量均大于210的区域-白色 %利用RGB做阈值分割 for k=1:360%60:270 for j=1:642%20:420 if(R(k,j)>215&&G(k,j)>200&&G(k,j)<240&&B(k,j)>190&&B(k,j)<240) BIGGER(k,j)=0; else BIGGER(k,j)=1; end end end bigXY=logical(BIGGER); %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %获得处理后的图像 frame_ALL=frame; ALL_R=frame(:,:,1); ALL_G=frame(:,:,2); ALL_B=frame(:,:,3); XY=~(~(XYR+XYG+XYB+bigXY)); Mask=BAW(XY); % 掩膜 ALL_R(XY)=Mask; ALL_G(XY)=Mask; ALL_B(XY)=Mask; % 使得非RGB色区域变色 frame_ALL(:,:,1)=ALL_R; frame_ALL(:,:,2)=ALL_G; frame_ALL(:,:,3)=ALL_B; %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %利用frame_ALL查找小鸟拥有的白色区域 %对所在的XY求和，白色区域为0 %利用标志位跳出多重循环 XY_dou=double(XY); flag_sum=0; for j=cell_y-50:cell_y+60%0-642列28->315+120=435 for k=cell_x-30:cell_x+75%0-360行68->189+80=270 s=sum(sum(XY_dou(k:k+9,j:j+9))); if s<75 flag_sum=1; cell_x=k;%更新起点位置 cell_y=j; % rect = [j,k,120,80]; rect = [j-55,k-25,120,80]; break; end end if flag_sum==1 break; end end % rect = [cell_x,cell_y,120,80];%框【左上坐标xy，大小右下】 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %显示图片和框 imshow(~XY_dou);%显示二值化图像 % imshow(frame); % rectangle('Position', rect, 'EdgeColor', 'r', 'LineWidth', 3);%显示框 text(5,18,num2str(i),'Color','y','FontWeight','bold','FontSize',18);%显示参考图像名称 % pause; end get(info);%在命令行显示视频信息