Sedikit nya ada 3 algoritma untuk mengkonversi gambar berwarna ke dalam hitam putih
1. The lightness method averages the most prominent and least prominent colors: (max(R, G, B) + min(R, G, B)) / 2.
2. The average method simply averages the values: (R + G + B) / 3.
3. The luminosity method is a more sophisticated version of the average method. It also averages the values, but it forms a weighted average to account for human perception. We’re more sensitive to green than other colors, so green is weighted most heavily. The formula for luminosity is 0.21 R + 0.71 G + 0.07 B.
Lebih baik yang mana diantara ketiga metode tersebut? mari kita lihat sample nya
original image
metode 1 lightness method averages
metode 2 simple average
metode 3 Luminosity method
apa yang akan terjadi jikalau kita hanya mengambil komponen red green atau blue nya saja
Red
blue
green
? 