人眼定位 clear all x=imread('C:\wuzun.jpg'); %讀取原始圖像 figure(1);subplot(1,4,1);imshow(x);title('原圖像1'); y=rgb2gray(x); subplot(1,4,2);imshow(y);title('圖像1的灰度圖'); % 圖1灰度圖 u1=imnoise(y,'salt & pepper',0.07); subplot(1,4,3);imshow(u1);title('圖像1加噪聲圖'); %給圖1加椒鹽噪聲