图像处理代码共享

Colbie

图像处理代码共享
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h=fspecial('average',[3 3])%3*3的均值滤波器
h=fspecial('disk',5)%半径为5的圆形平均模板
: H2 F- r" i3 C2 H% p3 \0 yh=fspecial('gaussian',[5 5],0.5)%5*5,标准差为0.5的高斯低通滤波器
* D, U' _! W/ u- C  l0 jh=fspecial('sobel')%加强水平边缘的竖直梯度算子
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6 m5 k* {, q  z) I% Y---------------------------------我是分割线--------------------------------------
7 H: Z$ z$ L  h5 d7 ]I=imread('baby_noise.bmp');
figure,imshow(I);
: z" \& ^) F( {) F2 ]! th3_5=fspecial('gaussian',3,0.5);
" M9 R7 S9 E8 A' n2 M; ]0 A! ~3 x* s, ^I3_5=imfilter(I,h3_5);
3 V- u, v8 \/ jfigure,imshow(I3_5);
3 q  q% _% g$ u2 ?h3_18=fspecial('gaussian',3,1.8);
I3_18=imfilter(I,h3_18);
figure,imshow(I3_18);
h5_8=fspecial('gaussian',5,0.8);
I5_8=imfilter(I,h5_8);
figure,imshow(I5_8);
imwrite(I5_8,'baby5_8.bmp');
" \$ [9 j" p6 R, oh7_12=fspecial('gaussian',7,1.2);
4 [' Q2 c0 z% |/ V0 [3 jI7_12=imfilter(I,h7_12);
figure,imshow(I7_12);
imwrite(I7_12,'baby7_12.bmp');

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+ A" E7 {4 {; I  S" ^/ Z0 kf=imread('cameraman.tif');
  P4 J# B6 l4 Z* a( ~8 Himshow(f);
w=[0.1 0.1 0.1;0.1 0.1 0.1;0.1 0.1 0.1]
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( |0 j/ x7 j4 E# R" b% E: a8 s9 Hg=imfilter(f,w,'corr','replicate');
figure,imshow(g);
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I=imread('baby_noise.bmp');
figure,imshow(I);
8 u$ ?+ W) t& f# ?- Y# y. Fh=fspecial('average',3);
% L; y: i2 v: j) m$ a) e& v: H2 K+ bI3=imfilter(I,h,'corr','replicate');
7 i' b* J- b; r4 n# y8 mfigure,imshow(I3);
h=fspecial('average',5);
I5=imfilter(I,h,'corr','replicate');
# a* O# u& |0 ^9 P$ B# }figure,imshow(I5);
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%Robert 交叉梯度
I=imread('bacteria.bmp');
: f1 H0 e! L' timshow(I);
# m( A) n* u- e- B0 V) C- Z' D0 R" qw1=[-1 0;0 1];
5 U2 [& k1 B. Y) J" iw2=[0 -1;1 0];
G1=imfilter(I,w1,'corr','replicate');
G2=imfilter(I,w2,'corr','replicate');
G=abs(G1)+abs(G2);
figure,imshow(G,[]);
; h# H" ?" \2 t% U/ Afigure,imshow(abs(G1),[]);
% D4 L% B) W% x( |3 zfigure,imshow(abs(G2),[]);
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%三种拉普拉斯模板
I=imread('bacteria.bmp');
imshow(I);
I=double(I);
w1=[0 -1 0;-1 4 -1;0 -1 0];
: e) m- _# K0 @$ J( I/ E& LL1=imfilter(I,w1,'corr','replicate');
w2=[-1 -1 -1;-1 8 -1;-1 -1 -1];
L2=imfilter(I,w2,'corr','replicate');
figure,imshow(abs(L1),[]);
figure,imshow(abs(L2),[]);
5 E8 v& G- p- {( bw3=[1 4 1;4 -20 4;1 4 1];
L3=imfilter(I,w3,'corr','replicate');
figure,imshow(abs(L3),[]);
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%sobel梯度
, t1 Y6 `+ w  g' Z2 |) Z* w- ~I=imread('bacteria.bmp');
w1=fspecial('sobel');
: ]2 i9 H. ?, U' Kw2=w1';
G1=imfilter(I,w1);
G2=imfilter(I,w2);
G=abs(G1)+abs(G2);
2 h, [' q* q( s  v6 ]+ xfigure,imshow(G1,[]);
figure,imshow(G2,[]);
5 P& s9 n3 _( rfigure,imshow(G,[]);
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I=imread('baby.bmp');
8 u, [4 A/ R. [0 C+ g! P+ Sfigure,imshow(I,[]);
5 Y; x4 A/ Q' s* Y) ?9 BId=double(I);
, _/ p' ]- G! j% ~h_lap=[-1 -1 -1;-1 8 -1;-1 -1 -1];
I_lap=imfilter(Id,h_lap,'corr','replicate');
- C8 ?* e) J1 J1 o+ Q' Afigure,imshow(uint8(abs(I_log)),[]);
, D& g  R' v, R5 {) Z5 Y6 |h_log=fspecial('log',5,0.5);
5 `$ M' w1 ?! u* ?, w8 fI_log=imfilter(Id,h_log,'corr','replicate');
" Q5 a9 z% _/ G: s2 nfigure,imshow(uint8(abs(I_log)),[]);
h_log=fspecial('log',5,2);
' Z# `1 R3 L9 v1 aI_log=imfilter(Id,h_log,'corr','replicate');
figure,imshow(uint8(abs(I_log)),[]);

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aplerll

看看都有哪些代码。