图像处理代码共享

Colbie

图像处理代码共享

---------------------------------我是分割线--------------------------------------
' m. `0 I# i; q' `0 Y8 ~6 X& Rh=fspecial('average',[3 3])%3*3的均值滤波器
5 k$ D$ S, K8 F) Gh=fspecial('disk',5)%半径为5的圆形平均模板
; B& s& O/ y) t! @* V" Ih=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

% e: J# S& E# z+ Y---------------------------------我是分割线--------------------------------------
I=imread('baby_noise.bmp');
7 i( l7 G6 O  G9 T" P. bfigure,imshow(I);
h3_5=fspecial('gaussian',3,0.5);
7 m% j- Y0 o' ^2 d  gI3_5=imfilter(I,h3_5);
figure,imshow(I3_5);
h3_18=fspecial('gaussian',3,1.8);
I3_18=imfilter(I,h3_18);
figure,imshow(I3_18);
4 L; k' A' l5 Q) G: v) R, L; @1 Ih5_8=fspecial('gaussian',5,0.8);
I5_8=imfilter(I,h5_8);
4 {$ h, X9 Q: S6 u2 J6 Sfigure,imshow(I5_8);
imwrite(I5_8,'baby5_8.bmp');
- E* }7 d: b! e5 sh7_12=fspecial('gaussian',7,1.2);
I7_12=imfilter(I,h7_12);
) S3 g7 T( g9 L2 i% V/ ?0 Ifigure,imshow(I7_12);
3 i0 a% V; Y" ?imwrite(I7_12,'baby7_12.bmp');
7 O9 Q, f$ x9 n' A6 Q: S) {) P# n* ?
, w0 W) Q7 T. e1 a: |$ A  E: b" A---------------------------------我是分割线--------------------------------------
1 N' T% Z) ]" gf=imread('cameraman.tif');
6 {, M7 ^/ l0 X0 Vimshow(f);
4 [5 B8 _9 }- V0 L1 Gw=[0.1 0.1 0.1;0.1 0.1 0.1;0.1 0.1 0.1]
8 |7 K: H- i3 N8 Kw
g=imfilter(f,w,'corr','replicate');
figure,imshow(g);
: V+ `& t# n" d
---------------------------------我是分割线--------------------------------------
7 a9 x6 _. C- b* c9 R
4 f' ]1 v1 {; E5 u% nI=imread('baby_noise.bmp');
figure,imshow(I);
h=fspecial('average',3);
I3=imfilter(I,h,'corr','replicate');
- b7 ]6 M) B( m% h' }figure,imshow(I3);
h=fspecial('average',5);
8 V/ L% `0 V. [* ^- _3 NI5=imfilter(I,h,'corr','replicate');
figure,imshow(I5);
7 t5 `: v9 @9 m# {2 G, {5 w
---------------------------------我是分割线--------------------------------------
  f% K$ D/ M1 ~" |%Robert 交叉梯度
- q: ]: C9 j/ X9 v3 W" jI=imread('bacteria.bmp');
" C( t& s) |% `- F9 k3 Oimshow(I);
w1=[-1 0;0 1];
w2=[0 -1;1 0];
6 h9 f% h. n4 h6 E% r( B" ~& k" YG1=imfilter(I,w1,'corr','replicate');
/ a) |2 u8 F. x, ]* SG2=imfilter(I,w2,'corr','replicate');
% d# A, t+ h. A* B9 |7 R- TG=abs(G1)+abs(G2);
/ L5 q; A; C3 v8 V7 [figure,imshow(G,[]);
: v' N  V; u) N: Ufigure,imshow(abs(G1),[]);
figure,imshow(abs(G2),[]);

---------------------------------我是分割线--------------------------------------
  Q) H8 X  f% v/ W) P9 T4 p%三种拉普拉斯模板
I=imread('bacteria.bmp');
7 f& r: _( ^. R6 |imshow(I);
5 s- o* Z/ {/ z7 e; y$ uI=double(I);
, X2 F+ x' r- k5 U/ g3 Rw1=[0 -1 0;-1 4 -1;0 -1 0];
0 M9 f1 m8 s2 N3 OL1=imfilter(I,w1,'corr','replicate');
w2=[-1 -1 -1;-1 8 -1;-1 -1 -1];
; V! ?3 q# c, ~& T+ b. dL2=imfilter(I,w2,'corr','replicate');
figure,imshow(abs(L1),[]);
. d* i, U1 E9 x" j, b7 `figure,imshow(abs(L2),[]);
w3=[1 4 1;4 -20 4;1 4 1];
L3=imfilter(I,w3,'corr','replicate');
/ S6 k. z# J- W; g0 L  z" Lfigure,imshow(abs(L3),[]);
  ]1 M) P+ u1 s2 u0 n
! m) M4 W+ R: [1 Y9 z---------------------------------我是分割线--------------------------------------

+ R3 y) J8 L  t0 \  K8 p%sobel梯度
I=imread('bacteria.bmp');
+ i" d" ^2 Q4 K, y3 A) J7 Cw1=fspecial('sobel');
w2=w1';
9 R0 C& ^6 y' l6 ^+ @- x/ ~G1=imfilter(I,w1);
G2=imfilter(I,w2);
G=abs(G1)+abs(G2);
figure,imshow(G1,[]);
figure,imshow(G2,[]);
' L7 }9 h6 ?/ ]8 a' F& Tfigure,imshow(G,[]);

---------------------------------我是分割线--------------------------------------
+ A9 u( k/ Y: b! P7 X9 i/ KI=imread('baby.bmp');
figure,imshow(I,[]);
Id=double(I);
# R* m: C$ P2 g0 C, kh_lap=[-1 -1 -1;-1 8 -1;-1 -1 -1];
I_lap=imfilter(Id,h_lap,'corr','replicate');
$ K0 u3 p3 p, {% t6 f* @figure,imshow(uint8(abs(I_log)),[]);
4 |0 r0 @: c8 T8 r/ ah_log=fspecial('log',5,0.5);
; w3 a" a9 t$ E0 b. MI_log=imfilter(Id,h_log,'corr','replicate');
figure,imshow(uint8(abs(I_log)),[]);
h_log=fspecial('log',5,2);
# a/ J+ ~; D0 ~1 r6 M6 c& MI_log=imfilter(Id,h_log,'corr','replicate');
, D- v( Y- j# a+ Sfigure,imshow(uint8(abs(I_log)),[]);

游客，如果您要查看本帖隐藏内容请回复

aplerll

看看都有哪些代码。