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7 demos

Interactive lab

Demos that really compute: every figure is produced in your browser by the algorithm it explains. Change the parameters, observe, understand.

Convolution and filters
Computer vision, Beginner
Slide a 3 × 3 kernel over an image: blur, sharpen, edge detection. Edit the weights and follow the computation of one pixel, term by term.
Haar wavelets (DWT)
Computer vision, Intermediate
Decompose an image into LL, HL, LH and HH sub-bands over several levels, drop the small coefficients and measure what the reconstruction loses.

Convolution and filters

Haar wavelets (DWT)