HW1 Advanced Color-to-Gray Conversion

Task

• Conventional Color Conversion (RGB->YUV)
• Advanced Color Conversion

Conventional Color Conversion

• Apply simple conversion (ref: wiki)
• Usage

     python3 color2gray.py --mode c 
                           [-p for plot] 
                           [-i (input image)] 
                           [-o (output directory)]
  

Advanced Color Conversion

• Apply Joint Bilateral Filter as similarity measurement.

• To justify which parameters fit the most (i.e. minimize L1 distance).

• Refer to: Decolorization: is rgb2gray() out?, SIGGRAPH Asia 2013 Technical Briefs:

• Usage

      python3 color2gray.py --mode a 
                            [-p for plot] 
                            [-i (input image)] 
                            [-o (output directory)]
  

• Results

  • Please refer to the directory advanced, files are named by chosen sigma_r and sigma_s.