Can anyone please help me about histogram matching without using inbuilt functions like imhist? Because my system shows error for 'im' built-in functions.
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Code using im functions is:
I1 = imread('image1.jpg'); I2 = imread('image2.png');
image1 = im2double(I1); % convert images to type double (range from from 0 to 1 instead of from 0 to 255) image2 = im2double(I2);
% Calculate the Normalized Histogram of Image 1 and Image 2 hn1 = imhist(image1)./numel(image1); hn2 = imhist(image2)./numel(image2);
subplot(2,2,1);plot(hn1); subplot(2,2,2);plot(hn2);
f = sum((hn1 - hn2).^2) % Calculate the histogram error
So can you please help me about replacing imhist function?
Risposte (1)
Bhumi Shah
il 11 Feb 2020
You can use histogram function with NumBins and BinLimits NV pair in place of imhist. Following steps might be helpful.
I1 = imread(image1);
I1double = im2double(I1);
I2 = imread(image2);
I2double = im2double(I2);
H1 = histogram(I1double, 'NumBins', 256, 'BinLimits', [0 1]);
H2 = histogram(I2double, 'NumBins', 256, 'BinLimits', [0 1]);
Count1 = H1.BinCounts';
Count2 = H2.BinCounts';
Refer to the following link for more information:
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