Best way to vary the threshold value of a greyscale image

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Adam Kelly
Adam Kelly 2019-11-7
编辑： KALYAN ACHARJYA 2019-11-8
I have a question to vary the threshold value of a greyscale image. I was thinking of using a for loop so I can vary values from 0.1 to 1 but not sure how to start the loop. Any help would be great

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KALYAN ACHARJYA
KALYAN ACHARJYA 2019-11-8
编辑：KALYAN ACHARJYA 2019-11-8
Let say im is the gray image, assumed you are try to convert gray to binary
% Define all threshold values here, you would like to attempt
th_values=[ ?, ?,...........];
data=cell(1,length(th_values))
for i=1:length(th_values);
data{i}=im2bw(im,th(i));
end
Later call any data{1},data{2},.....compare the results

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