Video and Image Processing Suite User Guide

ID 683416
Date 4/04/2022
Public
Document Table of Contents

8. 2D FIR II IP Core

The 2D FIR II IP core performs 2D convolution using matrices of specific coefficients.
The 2D FIR II IP core has 2 distinct modes of operation (user-defined at compile time).
  • Standard FIR mode
    • In this mode, the IP core performs 2D finite impulse response filtering (convolution) using matrices of N×M coefficients, where N is a parameterizable number of horizontal taps (1 <= N <= 16) and M is a parameterizable number of vertical taps (1 <= M <= 16).
    • You can set the coefficients used by the filter either as fixed parameters at compile time, or as run-time alterable values which you can edit through an Avalon-MM slave interface.
    • With suitable coefficients, the filter can perform operations such as sharpening, smoothing, and edge detection.
  • Dedicated edge-adaptive sharpening mode
    • You can use this mode to sharpen blurred edges in the incoming video.