calculate the area

2012 3 23
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hello everyone I need help. I have a picture consisting only of black and white. Does anybody know of any function which I figured would be an area of white on obazku.
Thank you so much to everyone

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Adam
Adam 2012-3-25

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solution to my problem was easier than it seemed ...
A=[0 1 0 0 0 0 1; 1 0 1 0 1 1 0; 0 0 1 1 1 0 1]
figure, imshow(A)
B = sum(sum(A))

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Image Analyst
Image Analyst 2012-3-25
What is obazku? Is that zero or black? What if there are several disconnected areas of white? Your method would give the total area but not the area of each one individually. If you want the total white area in a binary black and white grayscale image then your method is fine.
Adam
Adam 2012-3-28
sorry "obrazku" I forgot to translate the picture = obrazku.

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Matt Kindig
Matt Kindig 2012-3-23

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Do you want just the total number of pixels of white? If so, just sum the image (sum all 1's).
If you want the area of contiguous objects of white, check out the 'regionprops' function in the Image Processing Toolbox.

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Adam
Adam 2012-3-24
was enough I would sum all the white pixels in the picture. But I do not know how to get in this quest

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