Doubts in calculation of pixels values

#1

I want to know how we got this pixel.push( data[ ( i*cols + j ) * 4 + k ] );

#2

Also i want to ask with what theory behind all these JS code

#3

Hello @anmolwadali,

If you are asking about the formula ( i*cols + j ) * 4 + k.
It is used to map the indexes of the 3D array to a 1D array.

#4

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