Gaussian Filter, values and spectral analysis

Determine Gaussian 2D digital filters, determine integer and floating values. Analyse spectral behavior. Verify with artifical images.

Purpose:

Determine Gaussian 2D digital filters with integer numbers and sums=2^n , n is integer. The filters are designed especially for FPGA. Divisions may be replaced by much faster shift operations.

Features:

Create 2D Gaussian filters with following properties:

• Expose full digital filters that have a sum of 2n , with n as integer number.
• Create also floating numbers filter.
• Determine optimal filter by spectrum.
• Plot spectral properties.
• See results on artificial images.