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RELEASE.md

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Release 0.2.2

Major Features and Improvements

  • The type of DecompressedJpeg.markers is changed to List[bytes] from List[str]. From now on, decoding the markers is up to users.

Release 0.2.0

Major Features and Improvements

  • DecompressedJpeg supports both reading and writing some internal variables of JPEG file format.
  • The core of DecompressedJpeg has been changed to jstruct and mat2D in C++, which are adopted from Fridrich's lab., and partly modified for Python wrapping.
  • ZigZagDct1d is removed and will be updated again in the future.
  • A test case for reading StegoAppDB JPEG files has added.
  • The type of DecompressedJpeg.quant_tables is changed to list from numpy.ndarray.

Release 0.1.3

Major Features and Improvements

  • DecompressedJpeg supports only reading JPEG files, not writing.
  • DecompressedJpeg depends on the functionality of libjpeg (linux and macos) or libjpeg-turbo (windows).
  • ZigZagDct1d efficiently reads DCT coefficients in the zig-zag way and presents it as numpy.ndarray.