filter2

2-D digital filter.

📝Syntax

Y = filter2(H, X)
Y = filter2(H, X, shape)

📥Input Arguments

Parameter	Description
H	coefficients of rational transfer function.
X	input data.
shape	'same' (default), 'valid' or 'full'.

📤Output Arguments

Parameter	Description
Y	result: 2-D digital filter.

📄Description

Y = filter2(H, X) applies a finite impulse response filter to a matrix of data X according to coefficients in a matrix H.

💡Examples

A = zeros(10);
A(3:7, 3:7) = ones(5);
H = [1 2 1; 0 0 0; -1 -2 -1];
R = filter2(H, A, 'valid')

🔗See Also

🕔Version History

Version	Description
1.0.0	initial version