clc;close all;clear %read image % RGBimga = imread('bmpinput_1080p.bmp'); RGBimga = imread('bmpinput_720p.bmp'); RGBimgb = RGBimga*0; RGBimga = RGBimgb;[Hs Vs Dim] = size(RGBimga); gate = Vs/6; %6個豎彩條間隔 i = 1; RGBimga(:,(i-1)*gate+1:i*gate,1) = 255; %R i = i+1; RGBimga(:,(i-1)*gate+1:i*gate,2) = 255; %G i = i+1; RGBimga(:,(i-1)*gate+1:i*gate,3) = 255; %B i = i+1; RGBimga(:,(i-1)*gate+1:i*gate,1) = 255; %R i = i+1; RGBimga(:,(i-1)*gate+1:i*gate,2) = 255; %G i = i+1; RGBimga(:,(i-1)*gate+1:i*gate,3) = 255; %B figure;imshow(RGBimga);[Hs Vs Dim] = size(RGBimgb); gate = Hs/3; %3個橫彩條間隔 RGBimgb(1:gate,:,1) = 255; %R RGBimgb(gate+1:2*gate,:,2) = 255; %G RGBimgb(2*gate+1:3*gate,:,3) = 255; %B figure;imshow(RGBimgb);RGBimga = uint8(RGBimga); RGBimgb = uint8(RGBimgb);yuvima = rgb2yuv(RGBimga); %rgb2ycbcr % yuvima = rgb2ycbcr(RGBimga); figure;imshow(uint8(yuvima)); yuvimb = rgb2yuv(RGBimgb); figure;imshow(yuvimb);YUVimg = yuvima; yuvimout = zeros(1,Hs*Vs*Dim); %整理數據 yuvimout(1:3:Hs*Vs*Dim) = reshape(YUVimg(:,:,1)',1,Hs*Vs); %%Y yuvimout(2:3:Hs*Vs*Dim) = reshape(YUVimg(:,:,2)',1,Hs*Vs); %%U yuvimout(3:3:Hs*Vs*Dim) = reshape(YUVimg(:,:,3)',1,Hs*Vs); %%V fid= fopen('imga_720p.yuv','wb'); %整理后可快速輸出到文件fwrite(fid,yuvimout,'uint8'); fclose(fid); fid= fopen('imga_720p.txt','w');fprintf(fid,'%02x\n',yuvimout); fclose(fid);YUVimg = yuvimb; yuvimout = zeros(1,Hs*Vs*Dim); yuvimout(1:3:Hs*Vs*Dim) = reshape(YUVimg(:,:,1)',1,Hs*Vs); yuvimout(2:3:Hs*Vs*Dim) = reshape(YUVimg(:,:,2)',1,Hs*Vs); yuvimout(3:3:Hs*Vs*Dim) = reshape(YUVimg(:,:,3)',1,Hs*Vs); fid= fopen('imgb_720p.yuv','wb'); %% 寫二進制文件 fwrite(fid,yuvimout,'uint8'); fclose(fid); fid= fopen('imgb_720p.txt','w'); %% 寫txt文件fprintf(fid,'%02x\n',yuvimout); fclose(fid);

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轉載于:https://www.cnblogs.com/hythink/p/5224901.html

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