Files bundled with scramblekit
==============================

astronaut_128.png
    128 x 128 RGB crop (rows 0-319, columns 96-415, Lanczos-resized) of `skimage.data.astronaut()`:
    photograph of astronaut Eileen Collins from the NASA Great Images database (https://flic.kr/p/r9qvLn).
    scikit-image states: "No known copyright restrictions, released into the public domain."
    Used by `scramblekit.sample_image()` and `scramblekit demo`.

paper_keys.npz
    Scrambling keys used by the original research code of the papers, so that the published settings can be
    reproduced exactly:
    - le_key4 (64 x 96, uint8): the 64 learnable-encryption keys key4/0_.pkl ... key4/63_.pkl distributed with the
      SIA-GAN (https://github.com/MADONOKOUKI/SIA-GAN) and ScrambleMix
      (https://github.com/MADONOKOUKI/psivt23_scramblemix) code (identical in both). The block-wise scrambling code
      (https://github.com/MADONOKOUKI/Block-wise-Scrambled-Image-Recognition) reads the same file names:
      key 0 for LE, keys 0-63 (one per block) for ELE.
    - scramblemix_pe_{inv,colors}_{cifar10,cifar100,svhn}: the eight pixel-based-encryption keys per dataset that are
      hard-coded in scripts/scramblemix/cifar10.py of the ScrambleMix code (inv: 3072 bits, packed with
      numpy.packbits; colors: 1024 values in 0..5).
    Copyright (c) Koki Madono; released with scramblekit under the MIT License.
