vuoristo / aihelsinki-study-group-post-1

Linear Filters and Frequency Analysis

This post is written as part of AIHelsinki study group on natural image statistics. This text mostly covers material from Natural Image Statistics book chapter 2 available here. The format of this post is something between learning diary and a summary but I tried to include some original examples with reproduction instructions in the text. The topics covered in this post are mostly the same as in the textbook chapter 2 including linear filtering, frequency analysis, and space-frequency analysis. Some material has been left out and there may be inaccuracies so please consider this post supplemental to the textbook chapter.

This post is also available on the AIHelsinki blog

And a demonstration of the gabor filtering is available as a jupyter notebook here