How to convert MATLAB binary feature matrix to decimal?

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Preetham Manjunatha 2020-12-23

评论： Walter Roberson 2020-12-23

I have binary feature matrices from BRISK, FREAK and ORB descriptors with 512 number of bits.

I tried to use:

d = bi2de(featuresBRISK.Features(:,1),512);

But they are just converted to uint8. How can I convert them to decimal for image classification problem?

Preetham Manjunatha 2020-12-23

When I use the BRISK features, currently, it is in a matix form of uint8. I am going to use it for a classifcation problem.

Walter Roberson 2020-12-23

You can bitget() to extract bits from uint8 if you need to. Or use

bitstream = reshape((dec2bin(A,8) - '0').', 1, [])

Image Analyst 2020-12-23

If you want/need d to be double instead of uint8, for other purposes like feature analysis, do this:

d = double(d);

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