How Is Data Stored?
Summary
The article introduces DjVu as a superior alternative to PDFs for scanned documents, highlighting its efficient text and image handling. It explains DjVu's use of wavelet-based IW44 compression, a foreground text format JB2, and an arithmetic coder called ZP-coder, and discusses historical context with deep learning pioneers. It also covers practical challenges like limited device support and the format's niche status in archives and e-readers.