MATLAB: Hello, Could any one help me differentiate between these two pictures of currencies

discriminationfeaturesimage processingImage Processing Toolbox

I want a way of getting a feature that could differentiate between different currencies like the these two currencies.

Best Answer

How about just convert to grayscale, threshold, and look at the area fraction of white pixels? It will probably be very different for the two notes.

Related Solutions

MATLAB: Volume fraction for 2-d image

Just threshold

binaryImage = grayImage > someThreshold;
areaFraction = sum(binaryImage(:)) / numel(binaryImage);

Do it for each image. You might want to mask it by the circle. Let me know if you need to know how to mask.

MATLAB: Threshold ranges to BW image

Try this:

binaryImage1 = grayImage >= 105 & grayImage <= 168;
binaryImage2 = grayImage >= 170 & grayImage <= 200;
binaryImage3 = grayImage >= 120 & grayImage <= 140;
areaFraction1 = sum(binaryImage1(:)) / numel(grayImage);
areaFraction2 = sum(binaryImage2(:)) / numel(grayImage);
areaFraction3 = sum(binaryImage3(:)) / numel(grayImage);

Best Answer

Related Solutions

MATLAB: Volume fraction for 2-d image

MATLAB: Threshold ranges to BW image

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