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color ch4 and ch 5 - Color Basics Chapters 4 and 5 Retina...

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Color Basics – Chapters 4 and 5 Retina Cells Cones – for color and daylight vision Sees blue then green then red, then combined and simplified then sent to the brain Rods – brightness . better for night vision Works the same way a video camera works. The camera has CCDs which respond to Red, Blue and Green and Mono. 3 color attributes Hue – what we call color or tint. the 4 basics are red, yellow, green and blue In TV and computers – the 3 basics are red, green and blue Saturation –chroma – strength or richness of color. B/W is called achromatic When you add white, the color de-saturates such as red to pink. Add black red becomes maroon. Saturation contributes the most to a colors’ energy, Brightness how light a color looks in a b/w picture. Gray scale level TV has 9-12 gray scale steps, Computer video has 256, Film has many more, Your eye has many more TV, Computers 3 primaries are R, G, B R+G = Yellow, R+B = Magenta, B+G = Cyan, All 3 = white TV video guns are like 3 spot lights projecting 3 colors onto the tv screen Subtractive Color Mixing CP 10 & 15 chapter 4 -Film, printing – uses filters to subtract certain color frequencies. Each color absorbs all color except the one u see 3 primaries are –Cyan which absorbs red. Magenta which absorbs green. Yellow which absorbs blue. Subtractive Color mixing applies to print, paint, It comes up in video when you shine
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  • Spring '08
  • gordon
  • color temperature, Additive Color Mixing, Subtractive Color Mixing, Color Constancy Colors, Color Light level

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color ch4 and ch 5 - Color Basics Chapters 4 and 5 Retina...

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