v0.3.0

New

• SIMD support for the following functions using AVX2 (new default feature simd to enable this behavior)
  • tone::brightness()
  • tone::saturation()
  • colorspace::rgb_to_grayscale()
• simd module
  • adds_256_u8()
  • adds_n_256_u8()
  • deinterleave_3_rgb_256_u8()
  • deinterleave_4_rgb_256_u8()
  • avg_256_u8()
  • avg_alpha_256_u8()
  • avg_checked_256_u8()

Changes

• Switched from using f64 to f32 for speed
• Separated tone::brightness_lab() and tone::contrast_lab() into their own functions

Bug Fixes

• Fixed bug in tone::brightness()