Scilab 5.5.0
Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function
convol2d
discrete 2-D convolution, using fft.
Calling Sequence
C = convol2d(A,B)
Parameters
- A
a real or complex 2-D array.
- B
a real or complex 2-D array.
- C
a real or complex 2-D array.
Description
convol2d uses fft to compute the full
two-dimensional discrete convolution. The
dimensions of the resultC are given by
size(A)+size(B)+1. The indices of the
center element of B are defined as
floor((size(B)+1)/2).
Examples
s = [1 2 1; 0 0 0; -1 -2 -1];//Sobel horizontal edge kernel A = zeros(10,10);A(3:7,3:7) = 1; convol2d(s,A);
Used Functions
The convol2d function is based on the fft builtin.
History
| Version | Description |
| 5.4.0 | Function convol2d introduced. |
| Report an issue | ||
| << conv2 | Signal Processing | detrend >> |