I can't receive output using imshow() after imbinarize() function in my Image Processing job.

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Arash
Arash 2022-4-16
评论： Image Analyst 2023-3-14
Hi everybody!
I read 2 images to the workspace and prior to applying XOR operator, I'm trying to Binarize the input images using imbinarize() function, however, I receive an error using imshow() to display. I appreciate any assistance in resolving the issue.
Here is the code:
I1 = imread('D:/i_p_pics/Bird_1.jpg');
I2 = imread('D:/i_p_pics/Bird_2.jpg');
BW1 = imbinarize(I1);
BW2 = imbinarize(I2);
output = xor(BW1,BW2);
subplot(321); imshow(I1); title('First Image');
subplot(322); imshow(I2); title('Second Image');
subplot(323); imshow(BW1); title('First Binary Image');
subplot(324); imshow(BW2); title('Second Binary Image');
subplot(325); imshow(output); title('XORED Image');
Here is the error:
common_args.CData = validateCData(common_args.CData,image_type);
Error in images.internal.imageDisplayParseInputs (line 78)
common_args = images.internal.imageDisplayValidateParams(common_args);
Error in imshow (line 245)
images.internal.imageDisplayParseInputs({'Parent','Border','Reduce'},preparsed_varargin{:});
Error in oh (line 19)
subplot(323); imshow(BW1); title('First Binary Image');

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回答（2 个）

Image Analyst
Image Analyst 2022-4-16
Ran in:
Try this:
I1 = imread('Bird_1.jpg');
I2 = imread('Bird_2.jpg');
% The BW are 3-D images because I1 and I2 were RGB.
% Process only the blue channel, which has the most contrast.
BW1 = imbinarize(I1(:, :, 3));
BW2 = imbinarize(I2(:, :, 3));
output = xor(BW1,BW2);
subplot(321); imshow(I1); title('First Image');
subplot(322); imshow(I2); title('Second Image');
subplot(323); imshow(BW1); title('First Binary Image');
subplot(324); imshow(BW2); title('Second Binary Image');
subplot(325); imshow(output); title('XORED Image');
  2 个评论
Image Analyst
Image Analyst 2022-4-16
Arash, the original problem was that imbinarize will binarize each plane it it's an RGB image, which is what you werer giving it. So it's a 3-D logical image, which imshow doesn't handle.
If it answered your question, the usual thing to do is to click the "Accept this Answer" link 🙂, unless you want to wait for better ones.

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dhivya
dhivya 2023-3-14
hello,everyone i want 2 shares from this code and at the last line i use xor oprtion to reteive the original binary image.But i cannot retrieve it.Anyone pls suggest me quickly.(i take one binary image and generate two shares,after perfom xor opeartion restore original binary image)
S = imread('text input.png');
meven = [0 0 0; 0 1 1; 1 0 1; 1 1 0];
modd = [0 0 1; 0 1 0; 1 0 0; 1 1 1];
no = 1;
y = zeros(size(S));
R = zeros(size(S));
l = zeros(size(S));
for i = 1:size(S,1)
for j = 1:size(S,2)
if (S(i, j) == 0)
r = rand([no,2^no-1]);
disp(r)
ro = round(r);
ro = ro+1;
R(i,j) = meven(ro,1);
l(i,j) = meven(ro,2);
else
r = rand([no,2^no-1]);
disp(r)
ro = round(r);
ro = ro+1;
R(i,j) = modd(ro,1);
l(i,j) = modd(ro,2);
end
y(i,j) = S(i,j);
c=xor(R,l);
end
end
  1 个评论
Image Analyst
Image Analyst 2023-3-14
@dhivya how is this an answer to @Arash's question about XORing two bird images? Did you mean to post this as your own new question instead of an Answer to this question?

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