//用matlab读取YUV视频数据参考程序
close all;
clear
fid = fopen('D:\Image-Sequence\akiyo_cif.yuv','r')
row=176*2;col=144*2;
frames=8; % total=300
for frame=1:frames
Y=zeros(row,col,frames);
U=zeros(row/2,col/2,frames);
V=zeros(row/2,col/2,frames);
UU=zeros(row,col,frames);
VV=zeros(row,col,frames);
[Y(:,:,frame),count] = fread(fid,[row,col],'uchar');
[U(:,:,frame),count1]=fread(fid,[row/2,col/2],'uchar');
[V(:,:,frame),count2]=fread(fid,[row/2,col/2],'uchar');
%fclose(fid)
%figure,imshow(Y);
UU(1:2:row-1,1:2:col-1,frame)=U(:,:,frame);
UU(1:2:row-1,2:2:col,frame)=U(:,:,frame);
UU(2:2:row,1:2:col-1,frame)=U(:,:,frame);
UU(2:2:row,2:2:col,frame)=U(:,:,frame);
VV(1:2:row-1,1:2:col-1,frame)=V(:,:,frame);
VV(1:2:row-1,2:2:col,frame)=V(:,:,frame);
VV(2:2:row,1:2:col-1,frame)=V(:,:,frame);
VV(2:2:row,2:2:col,frame)=V(:,:,frame);
R = Y + 1.140 * (VV-128 );
G = Y + 0.395 * (UU-128 ) - 0.581 *(VV-128);
B = Y + 2.032 *(UU-128);
for i=1:row
for j=1:col
if R(i,j,frame)<0
R(i,j,frame)=0;
end
if R(i,j,frame)>255
R(i,j,frame)=255;
end
if G(i,j,frame)<0
G(i,j,frame)=0;
end
if G(i,j,frame)>255
G(i,j,frame)=255;
end
if B(i,j,frame)<0
B(i,j,frame)=0;
end
if B(i,j,frame)>255
B(i,j,frame)=255;
end
end
end
R=R/255;G=G/255;B=B/255;
%X=[R',G',B'];
figure,imshow(R(:,:,frame)',G(:,:,frame)',B(:,:,frame)');
%M(frame) =im2frame(X,map);
end
%movie(M,10,30)
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