dividing binary image using GUI

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Varian Adisuryo
Varian Adisuryo 2016-7-28
评论： Varian Adisuryo 2016-8-6
Hello, So I have a footprint in binary image and I have to divide it into 3 area with the same length but without the fingers. I have to do it using GUI.Is there any way how to do it? If it help, I give the picture about how to divide it above. Thank's a lot.

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Image Analyst
Image Analyst 2016-7-28
Just figure out the row numbers, for example
[rows, columns, numberOfColorChannels] = size(binaryImage);
row1 = round(rows/3);
row2 = round(2*rows/2);
topThird = binaryImage(1:row1, :);
middleThird = binaryImage((row1+1):row2, :);
bottomThird = binaryImage((row2+1):end, :);
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Image Analyst
Image Analyst 2016-8-6
Make sure your slider goes from 0 to 255, then get its value and don't use im2bw, just threshold it.
In the slider callback:
sliderValue = get(handles.slider1, 'Value');
thresholdValue = uint8(sliderValue);
% Now apply the threshold to make a binary image.
a_bw = a_gray > thresholdValue;
Varian Adisuryo
Varian Adisuryo 2016-8-6
wow it work perfectly. thank you, thank you, thank you so much sir for your help.

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