I want to ask how can i compare intensity values of images with its database? and name them as high intensity and low intensity ? please help me out :)
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.problem i am facing that how can i compare the intensity of images? and name them as high intensity or low intensity
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Image Analyst
2013년 9월 23일
% Read in the image.
grayImage = imread(yourFileName);
[rows. columns, numberOfColorChannels] = size(grayImage)
if numberOfColorChannels > 1
% It's color so convert to grayscale (luminance).
grayImage = rgb2gray(grayImage);
end
% Get it's mean with mean2().
meanValue = mean2(grayImage);
% Compare the image's mean with your definition of what is high or low.
if meanValue < 142 % or whatever...
classification = 'Low Intensity';
else
classification = 'High Intensity';
end
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Image Analyst
2013년 9월 23일
Yes of course. You'll have to analyze all your images that you want to be in the database and find their means and store them in the database. Then "compare" a test image to each of the others in the database. You can use save() to create a simple database. You can compare in whatever way you'd like, for example by subtracting the means.
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