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文件名称:jpegprotected
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- 上传时间：2012-11-16
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介绍说明－－下载内容来自于网络，使用问题请自行百度
clc
img = imread( lena.bmp )
JPEG compression
jpegcompression(img, lena_compressed.mat )
JPEG decompression
Irec = jpegrestoration( lena_compressed.mat )
System performances
[CR,BPP,PSNR,MSE,SNR] = systemperformances(img,Irec, lena_compressed.mat )
Plotting
figure,subplot(1,2,1),imshow(img),title( Original image ),...
subplot(1,2,2),imshow(Irec),title( Compressed image )
disp( Compression ratio: )
disp(CR)
disp( Bits per pixel: )
disp(BPP)
disp( Peak signal to noise ratio: )
disp(PSNR)
disp( Mean squared error: )
disp(MSE)
disp( Signal to noise ratio )
disp(SNR) -clc
img = imread( lena.bmp )
JPEG compression
jpegcompression(img, lena_compressed.mat )
JPEG decompression
Irec = jpegrestoration( lena_compressed.mat )
System performances
[CR,BPP,PSNR,MSE,SNR] = systemperformances(img,Irec, lena_compressed.mat )
Plotting
figure,subplot(1,2,1),imshow(img),title( Original image ),...
subplot(1,2,2),imshow(Irec),title( Compressed image )
disp( Compression ratio: )
disp(CR)
disp( Bits per pixel: )
disp(BPP)
disp( Peak signal to noise ratio: )
disp(PSNR)
disp( Mean squared error: )
disp(MSE)
disp( Signal to noise ratio )
disp(SNR)
img = imread( lena.bmp )
JPEG compression
jpegcompression(img, lena_compressed.mat )
JPEG decompression
Irec = jpegrestoration( lena_compressed.mat )
System performances
[CR,BPP,PSNR,MSE,SNR] = systemperformances(img,Irec, lena_compressed.mat )
Plotting
figure,subplot(1,2,1),imshow(img),title( Original image ),...
subplot(1,2,2),imshow(Irec),title( Compressed image )
disp( Compression ratio: )
disp(CR)
disp( Bits per pixel: )
disp(BPP)
disp( Peak signal to noise ratio: )
disp(PSNR)
disp( Mean squared error: )
disp(MSE)
disp( Signal to noise ratio )
disp(SNR) -clc
img = imread( lena.bmp )
JPEG compression
jpegcompression(img, lena_compressed.mat )
JPEG decompression
Irec = jpegrestoration( lena_compressed.mat )
System performances
[CR,BPP,PSNR,MSE,SNR] = systemperformances(img,Irec, lena_compressed.mat )
Plotting
figure,subplot(1,2,1),imshow(img),title( Original image ),...
subplot(1,2,2),imshow(Irec),title( Compressed image )
disp( Compression ratio: )
disp(CR)
disp( Bits per pixel: )
disp(BPP)
disp( Peak signal to noise ratio: )
disp(PSNR)
disp( Mean squared error: )
disp(MSE)
disp( Signal to noise ratio )
disp(SNR)
(系统自动生成,下载前可以参看下载内容)
下载文件列表
jpegprotected/1.jpg
jpegprotected/colorconversion.p
jpegprotected/jpegcompression.p
jpegprotected/jpegrestoration.p
jpegprotected/lena_compressed.mat
jpegprotected/systemperformances.m
jpegprotected/test_main.m
jpegprotected/untitled.fig
jpegprotected
jpegprotected/colorconversion.p
jpegprotected/jpegcompression.p
jpegprotected/jpegrestoration.p
jpegprotected/lena_compressed.mat
jpegprotected/systemperformances.m
jpegprotected/test_main.m
jpegprotected/untitled.fig
jpegprotected
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