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Lecture 3

# MMEDIA 1A03 Lecture Notes - Lecture 3: Cmyk Color Model

Department
Multimedia
Course Code
MMEDIA 1A03
Professor
Dr.0
Lecture
3

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L3- Jan 14
N bits:
2^) 1=2
2^) 2=4
2^) 8=256
01111110
64+32+16+8+4+2=126
Step 1: represent numbers with binary code
Step 2: represent intensities with numbers
Note:
We need to know about the range (e.g. intensities)
RGB Colour (RGB Encoding)
For example: redness – o to 255 (about 8 bits), 0 to 1.0
Max intensity: 255
Min intensity: 0
No limit to know how many bits
No limit of the possibilities
2^) 16=65536
2^) 24=4 billion
Photoshop
HSB/HSV (+alue)/HSL (+ightness)
(Hue-Saturation-Brightness)
Second color code
Hue: color (Unit: Degree)
Saturation: How close is the color close to R/G/B
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(Unit: Percentage)
CMYK
K: black ink
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