[問題] 請問關於中值濾波去除雜訊的問題已回收
小弟是一個剛使用matlab一星期的新手，用matlab寫了一段程式如下：
輸入圖形
clear all;
close all;
A=imread('wafer1.bmp');
把影像分成R、G、B
AR=A(:,:,1);
AG=A(:,:,2);
AB=A(:,:,3);
subplot(2,2,1),imshow(A),title('原始影像');
subplot(2,2,2),imshow(A(:,:,1)), title('R影像');
subplot(2,2,3),imshow(A(:,:,2)),title('G影像');
subplot(2,2,4),imshow(A(:,:,3)),title('B影像');
分析彩色晶圓之直方圖
subplot(2,2,1),imshow(A),title('原始影像');
subplot(2,2,2),imhist(AR),title('R影像直方圖');
subplot(2,2,3),imhist(AG),title('G影像直方圖');
subplot(2,2,4),imhist(AB),title('B影像直方圖');
Gamma修正法進行影像強化
BR=imadjust(AR);
BG=imadjust(AG);
BB=imadjust(AB);
subplot(2,2,1),imshow(A),title('原始影像');
subplot(2,2,2),imshow(BR),title('R影像Gamma修正');
subplot(2,2,3),imshow(BG),title('G影像Gamma修正');
subplot(2,2,4),imshow(BB),title('B影像Gamma修正');
Otsu影像分割
CR =graythresh(BR);
CG=graythresh(BG);
CB =graythresh(BB);
WR= im2bw(BR,CR);
WG= im2bw(BG,CG);
WB= im2bw(BB,CB);
subplot(2,2,1),imshow(A),title('原始影像');
subplot(2,2,2),imshow(WR) ,title('R影像Otsu分割');
subplot(2,2,3),imshow(WG) ,title('G影像Otsu分割');
subplot(2,2,4),imshow(WB) ,title('B影像Otsu分割');
利用Median Filter去除雜訊
IR=imnoise(WR,'salt & pepper',0.02);
IG=imnoise(WG,'salt & pepper',0.02);
IB=imnoise(WB,'salt & pepper',0.02);
MR=medfilt2(WR);
MG=medfilt2(WG);
MB=medfilt2(WB);
subplot(2,2,1),imshow(A),title('原始影像');
subplot(2,2,2),imshow(MR),title('R影像中值率波去除雜訊');
subplot(2,2,3),imshow(MG),title('G影像中值率波去除雜訊');
subplot(2,2,4),imshow(MB),title('B影像中值率波去除雜訊');
前面都還順利。
但是在執行Median Filter去除雜訊這邊遇到問題，錯誤訊息如下：
??? Function IMNOISE expected its first input, I,
to be one of these types:
uint8, uint16, double, int16, single
Instead its type was logical.
Error in ==> imnoise>ParseInputs at 201
iptcheckinput(a, {'uint8','uint16','double','int16','single'}, {}, mfilename,
...
Error in ==> imnoise at 85
[a, code, classIn, classChanged, p3, p4] = ParseInputs(varargin{:});
想請問一下各問大大，應該要如何修改，謝謝。
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