function?psnr=compute_psnr（im1im2）
if?size（im1?3）?==?3
????im1?=?rgb2ycbcr（im1）;
????im1?=?im1（:?:?1）;
end

if?size（im2?3）?==?3
????im2?=?rgb2ycbcr（im2）;
????im2?=?im2（:?:?1）;
end

imdff?=?double（im1）?-?double（im2）;
imdff?=?imdff（:）;

rmse?=?sqrt（mean（imdff.^2））;
psnr?=?20*log10（255/rmse）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????314??2015-08-24?09:09??SRCNN\compute_psnr.m

?????文件???????1885??2015-11-05?20:56??SRCNN\demo_SR.asv

?????文件???????1892??2015-11-05?20:57??SRCNN\demo_SR.m

?????文件????????279??2015-08-24?09:09??SRCNN\modcrop.m

?????文件??????38625??2015-08-24?09:09??SRCNN\model\x2.mat

?????文件??????38483??2015-08-24?09:09??SRCNN\model\x3.mat

?????文件??????38489??2015-08-24?09:09??SRCNN\model\x4.mat

?????文件???????1494??2015-08-24?09:09??SRCNN\Readme.txt

?????文件?????720054??2015-08-24?09:09??SRCNN\Set14\baboon.bmp

?????文件????1244214??2015-08-24?09:09??SRCNN\Set14\barbara.bmp

?????文件?????263222??2015-08-24?09:09??SRCNN\Set14\bridge.bmp

?????文件?????304182??2015-08-24?09:09??SRCNN\Set14\coastguard.bmp

?????文件?????271526??2015-08-24?09:09??SRCNN\Set14\comic.bmp

?????文件?????228584??2015-08-24?09:09??SRCNN\Set14\face.bmp

?????文件?????543054??2015-08-24?09:09??SRCNN\Set14\flowers.bmp

?????文件?????304182??2015-08-24?09:09??SRCNN\Set14\foreman.bmp

?????文件?????786486??2015-08-24?09:09??SRCNN\Set14\lenna.bmp

?????文件?????786486??2015-08-24?09:09??SRCNN\Set14\man.bmp

?????文件????1179702??2015-08-24?09:10??SRCNN\Set14\monarch.bmp

?????文件?????786486??2015-08-24?09:09??SRCNN\Set14\pepper.bmp

?????文件????1041782??2015-08-24?09:09??SRCNN\Set14\ppt3.bmp

????..A.SH.????334848??2015-08-24?10:07??SRCNN\Set14\Thumbs.db

?????文件?????688214??2015-08-24?09:09??SRCNN\Set14\zebra.bmp

?????文件?????786486??2015-08-24?09:09??SRCNN\Set5\baby_GT.bmp

?????文件?????248886??2015-08-24?09:09??SRCNN\Set5\bird_GT.bmp

?????文件?????196730??2015-08-24?09:09??SRCNN\Set5\butterfly_GT.bmp

?????文件?????235254??2015-08-24?09:09??SRCNN\Set5\head_GT.bmp

????..A.SH.????119296??2015-08-24?10:07??SRCNN\Set5\Thumbs.db

?????文件?????235350??2015-08-24?09:09??SRCNN\Set5\woman_GT.bmp

?????文件????????110??2015-08-24?09:09??SRCNN\shave.m

............此處省略8個文件信息