# Convolution¶

Usage: convolution(matrix_items, number_of_columns, should_normalize)

## Description¶

This filter runs a convolution matrix (or kernel) on the image. See Kernel (image processing) for details on the process. Edge pixels are always extended outside the image area.

## Arguments¶

• matrix_items - Semicolon separated matrix items.
• number_of_columns - Number of columns in the matrix.
• should_normalize - Whether or not we should divide each matrix item by the sum of all items.