CODEWITHSUNDEEP
c#opencvhistogramemgucv
OopsUser
OopsUser

Reputation: 4784

How can i get the histogram in a region of a picture using EMGU or OpenCv?

I'm trying to build a basic video tracker that tracks an object by his histogram, i have a region (rectangle) where the object is initially located. And i want to get the histogram of the image in that region. (and then to look around in the next frame for that histogram).

How can i get an histogram in a specific area as efficiently as possible ?

p.s I work with c# + emgu .. but if there is no solution in emgu but there is in OpenCV it will be helpful too Thanks.

Upvotes: 0

Views: 1381

Answers (2)

john k
john k

Reputation: 6615

the Emgu densehistogram class has a built in mask argument. I haven't used it but it might help.

hist.Calculate<Byte>(new Image<Gray, byte>[] { ImageFrame }, true, MASKGOESHERE);

Upvotes: 0

ArtemStorozhuk
ArtemStorozhuk

Reputation: 8725

What about setting ROI (region of interest) and work with it?

Upvotes: 1

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