how to find mean the value gray level 3 conditions

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Ajaree Rattanaharn 2019-2-7

回答： KSSV 2019-2-7

to find mean value of the figure in gray scale

I try to write code. in the picture above it error

Which I have the picture name 'IGray_crop'

in IGray_crop have very values.

So, I want to find mean the value is less than 20.

Thank you ูู^^

KSSV 2019-2-7

What error you get? YOu must specify the error.

@KSSV

error like this

KSSV 2019-2-7

Type error:

Matrix2(IGray_crop<20)

Change m to M.

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