You are here : matlab → Signal Processing → filter2
# filter2() - Signal Processing

### Syntax

### Example

### Output / Return Value

### Limitations

### Alternatives / See Also

### Reference

Y = filter2(h,X) filters the data in X with the two-dimensional FIR filter in the matrix h. It computes the result, Y, using two-dimensional correlation, and returns the central part of the correlation that is the same size as X.Y = filter2(h,X,shape) returns the part of Y specified by the shape parameter. shape is a string with one of these values:'full'Returns the full two-dimensional correlation. In this case, Y is larger than X. 'same'(default) Returns the central part of the correlation. In this case, Y is the same size as X. 'valid'Returns only those parts of the correlation that are computed without zero-padded edges. In this case, Y is smaller than X.

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

You can give an example if you know one.