in function subtract() what means mask and dtype parameters?

asked 2018-07-04 18:25:38 -0500

Hy, i'm very nob in opencv, i'm using the subtract() method but i did not understand the parameters "mask" and "dtype", i will appreciate a lot if anybody can explain to me (an easy way) these parameters practical uses?

mask: optional operation mask; this is an 8-bit single channel array that specifies elements of the output array to be changed. (???).

dtype: optional depth of the output array(????).

Thanks in advance.

edit retag flag offensive close merge delete

Comments

Have you read doc? Have you read this tutorial.? If you still don't understand feel free to come back with a new question

LBerger gravatar imageLBerger ( 2018-07-05 02:04:44 -0500 )edit