how to detect the object with character written on it and then crop the object out?i wanted to detect the car plate region..help me out..thks..and here is my code

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Bob 2013 年 7 月 23 日

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この質問への直接リンク

https://jp.mathworks.com/matlabcentral/answers/82862-how-to-detect-the-object-with-character-written-on-it-and-then-crop-the-object-out-i-wanted-to-detec

 i = imread('c2.jpg');
%image of c2 can be found in this link---https://www.google.com/search?q=car+plate+malaysia&source=lnms&tbm=isch&sa=X&ei=CpfjUZ_zNIaCrgee_YCoDw&sqi=2&ved=0CAcQ_AUoAQ&biw=1366&bih=649#facrc=_&imgdii=_&imgrc=vgo8fPgcyvixkM%3A%3BrlU7pCzBBN687M%3Bhttp%253A%252F%252Fwww.thecar.com.my%252Fimages%252Fimg_car%252F20071005jkschenA1124.JPG%3Bhttp%253A%252F%252Fwww.thecar.com.my%252Fcar0001808%3B450%3B337
i1 = rgb2gray(i);
i11 = imadjust(i1);
i2 = edge(i11,'canny',0.4);
figure,imshow(i2);
i22 = imclose(i2,se);
figure,imshow(i2);title('canny');
figure,imshow(i22);title('close line');
se = strel('square',2);
i3 = imdilate(i22,se);
i4 = imfill(i3,'holes');
[Ilabel num] = bwlabel(i4);
BW2 = bwareaopen(i4, 1620);
%d=bwmorph(BW2,'remove');
d=medfilt2(BW2,[3 3]);  %median filter
e=imclearborder(d, 4);
[L,NUM]=bwlabel(e,4);
disp(L);
subplot(1,8,1);imshow(i1);title('gray');
subplot(1,8,2);imshow(i2);title('canny');
subplot(1,8,3);imshow(i3);title('dilate');
subplot(1,8,4);imshow(i4);title('fill holes');
subplot(1,8,5);imshow(BW2);title('connected');
subplot(1,8,6);imshow(d);title('median filter');
subplot(1,8,7);imshow(e);title('clear border');
subplot(1,8,8);imshow(i11);title('adjust');
for i=1:NUM
    figure,imshow(L==i),title('object i');
   % figure,imhist(L==i);
    %J = imcrop(L==i,[60 40 100 90]);
    % figure,imshow(X2);title('cropped');
      pause(1);
  end
disp(num);