数字图像处理增强对比度
一、【实验目的】
1.利用MATLAB进行数字图像处理
2.对图像进行数字图像处理，使图像增强对比度
二、【实验内容】
zx=imread('D:\Documents and Settings\Administrator\桌面\zx.bmp');
imshow(zx);
a=double(zx);
for i=1:256
for j=1:256
b(i,j)=4*a(i,j);
if (b(i,j)>=255)
b(i,j)=255;
end
end
end
b=uint8(b);
figure(2);
imshow(b);
三、【实验结果】
Figure No.1：原图
Figure No.2：增强对比后效果
![](https://wkrtcs.bdimg.com/rtcs/image?w=338&md5sum=7f2643d96cb2a3876396d68d3559c7eb&sign=95b6ef1c50&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=3&ipr={"t":"img","w":"338","h":"390","dataType":"png","c":"word/media/image1.png","imgOriW":338,"imgOriH":390})
![](https://wkrtcs.bdimg.com/rtcs/image?w=338&md5sum=7f2643d96cb2a3876396d68d3559c7eb&sign=95b6ef1c50&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=3&ipr={"t":"img","w":"338","h":"390","dataType":"png","c":"word/media/image2.png","imgOriW":338,"imgOriH":390})
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