Fig. 4: Comparison of compression algorithms with L1 reduction at three dose rates.

Each scatter plot shows the reduction compression ratios and the compression throughputs of six compression algorithms (Deflate, Zstandard (Zstd), bzip2 (Bzip), LZ4, LZMA, and SNAPPY), plus the Blosc variants of Deflate, Zstandard (Zstd), LZ4, and SNAPPY. Reduction compression ratio (horizontal axes in all panels) is the ratio between the raw (uncompressed) data and the reduced compressed data sizes. The three rows of scatter plots correspond to three different electron fluxes: 0.01, 0.03, and 0.05 e/pixel/frame, from top to bottom. The left and right columns of scatter plots correspond to the two most extreme internal optimization levels of the compression algorithms: fastest but suboptimal compression labeled “Optimal Speed” (left column), and optimal but slow compression labeled “Optimal Compression” (right column). The data throughputs (vertical axes in all panels) are based on single threaded operation of ReCoDe and include the time taken for both reduction and compression. The decompression throughputs of the six algorithms are presented in Supplementary Fig. 2.