clc
clear;
I?=?imread（‘cameraman.tif‘）;
[r1c1]=size（I）;?
J?=?uint8（myimrotatef（I30））;%rotate?30?degrees?clockwise
K?=?uint8（myimrotatef（J-30））;%rotate?30?degrees?anticlockwise
[r2c2]=size（K）;?
K?=?K（（r2-r1）/2+1:（r2+r1）/2（c2-c1）/2+1:（c2+c1）/2）;%cut?the?picture?as?large?as?the?sample
subplot（131）imshow（I）title（“Sample?256*256“）
subplot（132）imshow（J）title（“Rotation1?350*350“）
subplot（133）imshow（K）title（“Rotation2?256*256“）;
[PSNR?MSE]?=?psnr_mse（I?K）;%calculate?MSE?and?display?MSE

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

?????文件???????3122??2018-09-12?21:11??myimrotatef.m

?????文件????????488??2018-09-12?20:45??psnr_mse.m

?????文件????????514??2019-01-27?19:54??h2.m

-----------?---------??----------?-----??----

?????????????????4124????????????????????3