Can't release memory with gocv.NewMat

[Wan9xy]

Description

When i create a new mat, I used gocv.NewMat, defer x.Close and after i merged 4 image channel pointer the empty mat. When i see the profile, the memory can't be released.

Steps to Reproduce

m := gocv.NewMat()
defer m.Close
gocv.Merge(bgChans, &m)

And when i use cv2.MatProfile to check program. the memory can't be release forever

• Operating System and version:MacOS 12.0.1 / Ubuntu 20.02/ Alpine
• OpenCV version used: 4.5.5
• How did you install OpenCV? Docker with gocv.
• GoCV version used: v0.29.0
• Go version: 1.17.3

[golubaca]

Mat.Close() is a function, is defer m.Close just typo, or you are using it like that?

[Wan9xy]

Mat.Close()是一个函数，defer m.Close只是错字，或者你正在使用它？

I have to record memory address by myself now, because m.Close can't close below the img's space, how can i whole close it

[brejce]

me too，are you fix it？