Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

image-processing

The degradation model and the point spread function

taught

Modeling a degraded image as a blur (described by a PSF) followed by additive noise, and its frequency-domain form G(u,v)=H(u,v)F(u,v)+N(u,v).

Taught in

The degradation model and the point spread function
Digital Image Processing

Requires

noise-revisited-in-the-frequency-domain required

Required by

Inverse filtering, and why it's unstable required

Local knowledge map

Local knowledge map

Click to expand

Solid arrows are required prerequisites; dashed are recommended or helpful. Lower rows are more foundational. Click any box to jump to that concept.