图像处理代码共享

Colbie

图像处理代码共享

; u! x4 y( x3 e' x! b% o---------------------------------我是分割线--------------------------------------
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
h=fspecial('gaussian',[5 5],0.5)%5*5,标准差为0.5的高斯低通滤波器
h=fspecial('sobel')%加强水平边缘的竖直梯度算子

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I=imread('baby_noise.bmp');
figure,imshow(I);
h3_5=fspecial('gaussian',3,0.5);
I3_5=imfilter(I,h3_5);
figure,imshow(I3_5);
) i" ]7 u5 m' ?7 I9 k9 Oh3_18=fspecial('gaussian',3,1.8);
I3_18=imfilter(I,h3_18);
6 Z: ^1 x! U( A+ @+ w" D; Rfigure,imshow(I3_18);
h5_8=fspecial('gaussian',5,0.8);
; l$ \" a) B: Y, A7 sI5_8=imfilter(I,h5_8);
$ R- \+ }0 H, `4 n+ yfigure,imshow(I5_8);
imwrite(I5_8,'baby5_8.bmp');
. _' t' A* @$ g, U. f# eh7_12=fspecial('gaussian',7,1.2);
I7_12=imfilter(I,h7_12);
figure,imshow(I7_12);
imwrite(I7_12,'baby7_12.bmp');

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+ j0 n7 v; F' v. L  p) i/ A/ qf=imread('cameraman.tif');
. N  B# N. U4 Gimshow(f);
w=[0.1 0.1 0.1;0.1 0.1 0.1;0.1 0.1 0.1]
9 H1 p# Z0 c, ^4 M( hw
g=imfilter(f,w,'corr','replicate');
figure,imshow(g);
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) G' Z2 @1 C! Y  J- r9 eI=imread('baby_noise.bmp');
figure,imshow(I);
6 n: [  ~# N3 ^  [; lh=fspecial('average',3);
I3=imfilter(I,h,'corr','replicate');
figure,imshow(I3);
/ I) o& @3 ^# g5 K3 e1 W# W; C' l+ Hh=fspecial('average',5);
I5=imfilter(I,h,'corr','replicate');
7 X" @$ u% X: nfigure,imshow(I5);

( K' X5 x; q( ~# m( O---------------------------------我是分割线--------------------------------------
%Robert 交叉梯度
# n* }4 E$ ^3 S( b) WI=imread('bacteria.bmp');
) g& l5 Q1 g0 f" C( B; g: e+ gimshow(I);
w1=[-1 0;0 1];
# R' O$ I2 w7 _w2=[0 -1;1 0];
6 Y. C5 B, ?6 CG1=imfilter(I,w1,'corr','replicate');
G2=imfilter(I,w2,'corr','replicate');
" ~: S+ L" O2 Z. \" L) j5 @3 jG=abs(G1)+abs(G2);
! f. Y: C( G* P8 V# A; afigure,imshow(G,[]);
figure,imshow(abs(G1),[]);
figure,imshow(abs(G2),[]);
" `4 i5 Q. j2 }, y, @
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7 n5 d; E  n7 h$ {& h' \* o3 r%三种拉普拉斯模板
I=imread('bacteria.bmp');
imshow(I);
/ B8 Y* ]2 }9 ?9 W( Y4 [: [I=double(I);
& t8 J2 |0 s9 zw1=[0 -1 0;-1 4 -1;0 -1 0];
' q. P) j  o, eL1=imfilter(I,w1,'corr','replicate');
8 p7 J; D3 v! s# f0 M6 C- Aw2=[-1 -1 -1;-1 8 -1;-1 -1 -1];
L2=imfilter(I,w2,'corr','replicate');
6 n; g7 h# X- T4 wfigure,imshow(abs(L1),[]);
1 Y# x0 H' M) W+ t5 Y) _/ J$ gfigure,imshow(abs(L2),[]);
w3=[1 4 1;4 -20 4;1 4 1];
L3=imfilter(I,w3,'corr','replicate');
9 \' t; V. K. q& z$ G! yfigure,imshow(abs(L3),[]);

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% \$ Z  Q) D5 L4 z2 R: j+ b
; r2 [" m: ^) `! d, u%sobel梯度
6 d: ]4 E& t8 \3 R% e2 dI=imread('bacteria.bmp');
w1=fspecial('sobel');
4 @3 b' Y; W; K# `w2=w1';
) B2 s0 {  I3 n5 P1 N: TG1=imfilter(I,w1);
# F+ u3 K1 x, P# Y* z. X. JG2=imfilter(I,w2);
4 ]) B4 X7 w8 G* ^G=abs(G1)+abs(G2);
figure,imshow(G1,[]);
6 V4 l' o5 N6 r5 R3 B9 _' xfigure,imshow(G2,[]);
figure,imshow(G,[]);
8 D" I2 ^7 _4 W* M
" a2 v% ]7 `6 V( n---------------------------------我是分割线--------------------------------------
I=imread('baby.bmp');
figure,imshow(I,[]);
; b$ e* W% @& N+ M6 ^, ^: s9 K% f$ [Id=double(I);
h_lap=[-1 -1 -1;-1 8 -1;-1 -1 -1];
8 {. b- i  P2 f5 l9 p7 F! v+ AI_lap=imfilter(Id,h_lap,'corr','replicate');
figure,imshow(uint8(abs(I_log)),[]);
8 G" D2 N% i2 p+ ?- ]8 Ih_log=fspecial('log',5,0.5);
3 l" u6 b1 P, i( Z' K" b# r# lI_log=imfilter(Id,h_log,'corr','replicate');
% e* V0 w/ n/ B" t/ Ifigure,imshow(uint8(abs(I_log)),[]);
h_log=fspecial('log',5,2);
5 H& i  @; E* R6 [/ v5 ~9 E; uI_log=imfilter(Id,h_log,'corr','replicate');
6 P0 m4 d# l1 j/ \: W8 w( D0 w  c# s9 Pfigure,imshow(uint8(abs(I_log)),[]);

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aplerll

看看都有哪些代码。