图像处理代码共享-im_filter2.m
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h=fspecial%3*3的均值滤波器
h=fspecial%半径为5的圆形平均模板
h=fspecial%5*5,标准差为0.5的高斯低通滤波器
h=fspecial%加强水平边缘的竖直梯度算子
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I=imread;
figure,imshow;
h3_5=fspecial;
I3_5=imfilter;
figure,imshow;
h3_18=fspecial;
I3_18=imfilter;
figure,imshow;
h5_8=fspecial;
I5_8=imfilter;
figure,imshow;
imwrite;
h7_12=fspecial;
I7_12=imfilter;
figure,imshow;
imwrite;
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f=imread;
imshow;
w=[0.1 0.1 0.1;0.1 0.1 0.1;0.1 0.1 0.1]
w
g=imfilter;
figure,imshow;
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I=imread;
figure,imshow;
h=fspecial;
I3=imfilter;
figure,imshow;
h=fspecial;
I5=imfilter;
figure,imshow;
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%Robert 交叉梯度
I=imread;
imshow;
w1=[-1 0;0 1];
w2=[0 -1;1 0];
G1=imfilter;
G2=imfilter;
G=abs abs;
figure,imshow;
figure,imshow,[]);
figure,imshow,[]);
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%三种拉普拉斯模板
I=imread;
imshow;
I=double;
w1=[0 -1 0;-1 4 -1;0 -1 0];
L1=imfilter;
w2=[-1 -1 -1;-1 8 -1;-1 -1 -1];
L2=imfilter;
figure,imshow,[]);
figure,imshow,[]);
w3=[1 4 1;4 -20 4;1 4 1];
L3=imfilter;
figure,imshow,[]);
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%sobel梯度
I=imread;
w1=fspecial;
w2=w1';
G1=imfilter;
G2=imfilter;
G=abs abs;
figure,imshow;
figure,imshow;
figure,imshow;
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I=imread;
figure,imshow;
Id=double;
h_lap=[-1 -1 -1;-1 8 -1;-1 -1 -1];
I_lap=imfilter;
figure,imshow),[]);
h_log=fspecial;
I_log=imfilter;
figure,imshow),[]);
h_log=fspecial;
I_log=imfilter;
figure,imshow),[]);
