图像处理代码共享

Colbie

图像处理代码共享
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" ?3 {. C5 ^4 [+ [---------------------------------我是分割线--------------------------------------
6 G7 F& D6 t9 P8 zh=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
  ~/ i2 B( `% f$ nh=fspecial('gaussian',[5 5],0.5)%5*5,标准差为0.5的高斯低通滤波器
5 L# h4 V& p6 y3 r, L% Wh=fspecial('sobel')%加强水平边缘的竖直梯度算子
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0 ]. o2 o/ E1 D) G, N# ?---------------------------------我是分割线--------------------------------------
. Y! ?" J2 K: t* i7 p5 hI=imread('baby_noise.bmp');
figure,imshow(I);
h3_5=fspecial('gaussian',3,0.5);
0 _9 M7 G4 {, V# e0 J0 ^I3_5=imfilter(I,h3_5);
# z* @9 a0 d( hfigure,imshow(I3_5);
; Q4 G1 w( n, R! Z: kh3_18=fspecial('gaussian',3,1.8);
I3_18=imfilter(I,h3_18);
figure,imshow(I3_18);
h5_8=fspecial('gaussian',5,0.8);
# e* k& y- Y$ R- p( [3 rI5_8=imfilter(I,h5_8);
figure,imshow(I5_8);
8 e; S: ], w+ q  Z0 Z9 Nimwrite(I5_8,'baby5_8.bmp');
" C$ w  z2 ]" Kh7_12=fspecial('gaussian',7,1.2);
I7_12=imfilter(I,h7_12);
" [3 A: ]# @5 N9 s9 h1 t  v9 Sfigure,imshow(I7_12);
7 ^1 y2 w" N1 K) u, ^imwrite(I7_12,'baby7_12.bmp');

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$ G* ^  Q5 m3 r2 N$ i. y* `f=imread('cameraman.tif');
imshow(f);
w=[0.1 0.1 0.1;0.1 0.1 0.1;0.1 0.1 0.1]
w
7 @$ c* @) O1 ?+ ]$ zg=imfilter(f,w,'corr','replicate');
figure,imshow(g);

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! a. F! e- J6 [2 l0 A: f) EI=imread('baby_noise.bmp');
1 t0 p! j8 w6 B8 m  @# s7 K, ^4 A) Ufigure,imshow(I);
, f& ]9 N' X/ F" A5 f) `h=fspecial('average',3);
0 \# u1 K% X6 z4 }/ XI3=imfilter(I,h,'corr','replicate');
figure,imshow(I3);
h=fspecial('average',5);
3 K: K) Z& W/ ^  DI5=imfilter(I,h,'corr','replicate');
+ X7 A! I/ `" J! xfigure,imshow(I5);
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" W  ?6 f* m: m+ R6 N---------------------------------我是分割线--------------------------------------
%Robert 交叉梯度
1 I+ V6 D, g+ b0 iI=imread('bacteria.bmp');
imshow(I);
0 l, J0 b, E6 }5 D) N9 Sw1=[-1 0;0 1];
w2=[0 -1;1 0];
G1=imfilter(I,w1,'corr','replicate');
G2=imfilter(I,w2,'corr','replicate');
G=abs(G1)+abs(G2);
figure,imshow(G,[]);
figure,imshow(abs(G1),[]);
figure,imshow(abs(G2),[]);
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% U4 w( ]# {& w, e%三种拉普拉斯模板
I=imread('bacteria.bmp');
imshow(I);
I=double(I);
" j2 M1 y* P; u. A1 u2 pw1=[0 -1 0;-1 4 -1;0 -1 0];
. a: r( _  X3 f* i# r; @1 UL1=imfilter(I,w1,'corr','replicate');
2 C; c3 N/ `9 h3 B6 Fw2=[-1 -1 -1;-1 8 -1;-1 -1 -1];
L2=imfilter(I,w2,'corr','replicate');
0 ?4 e; `3 i" f! {7 k4 P1 l, Wfigure,imshow(abs(L1),[]);
& K8 k) ]8 l9 D) `5 |: [) Mfigure,imshow(abs(L2),[]);
& W3 h. p0 w2 h) w/ Zw3=[1 4 1;4 -20 4;1 4 1];
. l- x, n% _" PL3=imfilter(I,w3,'corr','replicate');
' {  f/ }: U) Z1 yfigure,imshow(abs(L3),[]);
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%sobel梯度
- y  l9 C3 B. i! j- B1 RI=imread('bacteria.bmp');
% L* y$ C* V& ?$ V1 u# pw1=fspecial('sobel');
, r6 e3 z5 _  C4 n) S2 tw2=w1';
4 `- k# D+ [5 o$ _G1=imfilter(I,w1);
, i+ e( K  D2 f1 P) MG2=imfilter(I,w2);
G=abs(G1)+abs(G2);
4 V' _9 x2 M  a# n: d' G0 x/ @figure,imshow(G1,[]);
figure,imshow(G2,[]);
figure,imshow(G,[]);

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I=imread('baby.bmp');
figure,imshow(I,[]);
Id=double(I);
h_lap=[-1 -1 -1;-1 8 -1;-1 -1 -1];
2 q9 t4 U5 J3 dI_lap=imfilter(Id,h_lap,'corr','replicate');
7 U& b* O+ m; n5 D, n  kfigure,imshow(uint8(abs(I_log)),[]);
: z6 s" {' R- k/ {" T# [3 zh_log=fspecial('log',5,0.5);
I_log=imfilter(Id,h_log,'corr','replicate');
figure,imshow(uint8(abs(I_log)),[]);
h_log=fspecial('log',5,2);
8 v0 O5 {0 l) ~$ l1 ?9 v0 c; `. g# C, pI_log=imfilter(Id,h_log,'corr','replicate');
' Q6 G; @1 ~3 `% m8 r- bfigure,imshow(uint8(abs(I_log)),[]);
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aplerll

看看都有哪些代码。