Information Theory Lab

Compression, communication
and information

Explore measured experiments, actual decoded files, and the limits behind the results.

1117 recorded experiments
13 connected fields · reproducible evidence

Choose an experiment

Start with a photograph, then compare codecs by their actual file size and decoded quality. Change the field to explore sources, coding, estimation and theoretical examples.

Field

Source, channel or scenario

Method

Recorded parameter setting

Experiment seed

How to read this result

Full recorded measurements Numerical arrays (.npz)Open image or figure at full size

Exact experiment configuration

Measured comparisons

Results for this scenario

Cross-method studies

Controlled comparisons

These six broader studies use the explicit source laws and measurement conventions in their captions.

Live theory check

What does binary noise cost?

Change the crossover probability p of a binary symmetric channel. H₂(p) measures uncertainty; its capacity is 1 − H₂(p) bits per channel use.

Crossover probability

This computes exact binary formulas. The saved experiment above keeps its recorded settings.

Noise entropy (bits)

Capacity (bits/use)