A. Sampling : suatu proses mendigitasi koordinat objek. Proses ini memberikan ukuran citra (resolution pixel), misal : 10×10 pixel.
B. Kuantisasi
(quantization) : suatu proses mendigitasi intensitas sinyal
objek pada koordinat pixel yang disample, dengan kata lain member nilai pixel
tersebut (penentuan intensitas warna/color depth), misal :
nilai digital pixel = 0 1
Colour Depth :
- 1 bit per pixel = 2 colours (monochrome)
- 4 bits per pixel = 16 colours
- 8 bits per pixel = 256 colours
- generally good enough for colour images
- 16 bits per pixel = 65536 colours
- better quality for photograph like-images,also known as high colour
- 24 bits per pixel = >16 million possible colours
- used to recreate photo realistic images,also known as true colour monochrome.
Pertanyaan yg bgus tentang sampling dan kuantisasi
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