How to count image binary

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mohd akmal masud
mohd akmal masud 2019-7-30
编辑： KALYAN ACHARJYA 2019-7-31
Hi all
if i have binary image, how to calculate the white pixel, and black pixel?
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Adam Danz
Adam Danz 2019-7-31
Do you mean you want to calculate the location of a single white pixel? Or you want to determine if a given coordinate is a white pixel? Maybe a picture will help.
mohd akmal masud
mohd akmal masud 2019-7-31
Untitled.jpg
Hi Adam, i want to calculate no of white pixel in red circle. let say the area row is 100-130, column 110-140. Please help me

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KALYAN ACHARJYA
KALYAN ACHARJYA 2019-7-31
编辑：KALYAN ACHARJYA 2019-7-31
Let's say input binary image is image_bw
result=bwareafilt(image_bw,1,'Largest');
count_w=sum(result);
fprintf('The white pixel count is: %d',count_w);

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