v0.7

v0.7 (2022-11-22)

Breaking changes

• ImageSequence::first_frame now returns Option<&Frame> instead of &Frame.
  • Also introduces new first_frame_mut and first_frame[_mut]_unchecked methods.

Other changes

• Add crate-level support for image quantization
  • The new quantize feature enables the color_quant dependency for more complex quantization algorithms
    This is enabled by default, mainly because color_quant appears to not pull any additional dependencies
  • Quantizer struct can handle direct quantization of raw pixel data
  • Image::quantize is a higher-level method that can quantize an image into a paletted image
  • Implement From<Image<Rgb[a]>> for Image<PalettedRgb[a]> which utlizes quantization
• Fix decoding bug for JPEG images with L pixels