Layer Area in the image

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mustafa alnasser 2014-3-1

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评论： Image Analyst 2014-3-3

Dear All;

I have an image of three layer, I need to calculate the area of each of them , I use the regionprop to do that but I got only numbers but I need to know that for Layer 1 has x area and layer 2 has y area , so, how can I know that ?

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Answer 1

Image Analyst 2014-3-1

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I'm not sure what you're asking. You said you used regionprops to get the areas. You just need to do this one layer (image) at a time and sum up the areas

thisLayersMeasurements = regionprops(labeledImage, 'Area');
allAreas = [thisLayersMeasurements.Area]  % There might be multiple regions.
sumOfAllAreas = sum(allAreas);

repeat the above for each layer image.

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mustafa alnasser 2014-3-3

Thank you man for your answer My question is not to find the area of each region but to give label to each one , either by text or color . For example, I have three layers on top of each other and i want to give blue color to the top one ,red for the middle and green for the bottom one , how can i do that