In Image statistics nxn matrix is used for demonstrations purpose where n is always an odd number. In this she has taken the minimum i.e 3x3 matrix which equals to 9 cells.
Mam u told that D8 algorithm directs water to flow in steepest slope and after calculating slope u told that i will go in 50-40 (least slope). if these numbers are elevation data. either u have done some mistake or missed something
There is a big mistake in the flow direction determination. The direction of flow is determined by the direction of steepest descent, or maximum drop, from each cell.
Maam shouldnt the flow be in the direction of the maximum slope? In fact, most of the other videos and papers have taken the flow direction along the maximum value of the slope.
First of all she says that highest elevation is 50 but clearly 60 ia going to be higher... Then she says water flows to steepest slope but steepest would be from 50 to 20....Then even going by her logic from 50 to 40 then how on earth does it flow from 40 to 30... Very confused explanation