how to plot group delay with respect to omega_1 and omega_2 for 2-D dimensional digital filter

For a 2-D digital filter how to find the 2-D group delay plot. please tell

Answer 1

[Yazan]

Use grpdelay. A built-in Matlab function.

[shilpa sharma]

grpdelay is used for 1 dimensional filter to plot with respect to only one frequency. I wanted to plot with repect to two frequencies...........for 2-dimensional filter...please help

[Yazan]

Provide the equation defining the group delay for a 2D filter?

[shilpa sharma]

[shilpa sharma]

please answer..........i am facing problem...

Answer 2

[shilpa sharma]

no body has answer yet..........please answer