How can I solve the following error of the code segment?
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% function main
clc;
clear all;
close all;
im = imread('3.jpg');
subplot(2,1,1),imshow(im);
subplot(2,1,2),imhist(im(:,:,1));
title('INPUT IMAGE HISTOGRAM');%figure,imhist(im(:,:,2)),title('blue');figure,imhist(im(:,:,3)),title('Green');
figure;
% j=);
I = imnoise(im,'salt & pepper',0.02);
subplot(1,2,1),imshow(I);
title('Noise adition and removal using median filter');
K = medfilt2(I);
subplot(1,2,2),imshow(K);
im = double(im);
s_img = size(im);
r = im(:,:,1);
g = im(:,:,1);
b = im(:,:,1);
% [c r] = meshgrid(1:size(i,1), 1:size(i,2));
data_vecs = [r(:) g(:) b(:)];
k= 4;
[ idx C ] = kmeansK( data_vecs, k );
% d = reshape(data_idxs, size(i,1), size(i,2));
% imagesc(d);
palette = round(C);
%Color Mapping
idx = uint8(idx);
outImg = zeros(s_img(1),s_img(2),3);
temp = reshape(idx, [s_img(1) s_img(2)]);
for i = 1 : 1 : s_img(1)
for j = 1 : 1 : s_img(2)
outImg(i,j,:) = palette(temp(i,j),:);
end
end
cluster1 = zeros(size(r));
cluster2 = zeros(size(r));
cluster3 = zeros(size(r));
cluster4 = zeros(size(r));
figure;
cluster1(find(outImg(:,:,1)==palette(1,1))) = 1;
subplot(2,2,1), imshow(cluster1);
cluster2(find(outImg(:,:,1)==palette(2,1))) = 1;
subplot(2,2,2), imshow(cluster2);
cluster3(find(outImg(:,:,1)==palette(3,1))) = 1;
subplot(2,2,3), imshow(cluster3);
cluster4(find(outImg(:,:,1)==palette(4,1))) = 1;
subplot(2,2,4), imshow(cluster4);
cc = imerode(cluster4,[1 1]);
figure,imshow(imerode(cluster4,[1 1]));
title('eroded image');
[label_im, label_count] = bwlabel(cc,8);
stats = regionprops(label_im, 'Centroid');
for i=1:label_count
area(i) = stats(i).Centroid;
end
[maxval, maxid] = max(area);
label_im(label_im ~= maxid) = 0;
label_im(label_im == maxid) = 1;
figure,imshow(label_im);
title('tumour');
% outImg = uint8(outImg);
% imtool(outImg);
code_end = 1;
ERROR:
Subscripted assignment dimension mismatch.
Error in main (line 70)
area(i) = stats(i).Centroid;
댓글 수: 6
Walter Roberson
2019년 1월 19일
Centroid is a vector of at least 2 elements (it will have the same number of entries as ndims applied to the image.) You cannot store a vector into a scalar location area(i)
답변 (1개)
Walter Roberson
2019년 1월 19일
The line of code with the error does not occur in the code you attached. Your current code calls upon Area, which does not exist in the field because your current code asks regionprops for Centroid.
Centroid is a vector of at least 2 elements (it will have the same number of entries as ndims applied to the image.) You cannot store a vector into a scalar location area(i)
댓글 수: 3
Walter Roberson
2019년 1월 19일
area(i) = stats(i).Centroid(1) + 1i * stats(i).Centroid(2);
You are now able to store the two pieces of information into a single location, one coded into the real() of the location and the other coded into the imag() of the location.
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