How to multiply cv.Mat by scalar in JS?

mikit
1

943 ●9 ●6

We cannot use operator* unlike C++.

It seems cv.multiply is only for mat * mat (element-wise).

How can I multiply Mat by scalar?

Currently, I use cv.multiply(mat, cv.ones(h, w, cv.CV_8UC1), 255)

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VonChenpPlus
1 ●1

Mat's operator* is actually performed by gemm, so you can use cv.gemm instead.

no, that's wrong, as "per-element" multiplication was required

berak ( 2020-08-27 04:33:21 -0600 )edit

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Asked: 2020-05-03 13:55:56 -0600

Seen: 1,170 times

Last updated: Aug 27 '20