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17 Cards in this Set
- Front
- Back
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What does CRT stand for? |
Cathode-ray Tube |
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What are the main components of a CRT? |
Screen coated in phosphor, a cathode, deflector plates |
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What type of display is LCD classed as? |
Raster |
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Name the 2 main types of digital images. |
Rastor (bitmaps) and Vector |
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How are Raster images defined? |
In terms of pixels |
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How are Vector images defined? |
In terms of lines |
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For simple images which image type would be smaller? |
Vector |
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For complex images which image type would be more efficient? |
Raster (bitmap) |
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Which image type scales up more accurately? |
Vector |
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What does DPI stand for? |
Dots Per Inch |
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What are the 3 main color models? |
RGB, HSB/HSL, CMYK |
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What is a CLUT and what color model was it used for? |
Color Look Up Table was used for Indexed color in earlier systems |
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How do you convert a 24bpp image to an 8-bit indexed color image? |
The color palette is pre-defined, the color palette can be optimized for the image |
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What is dithering? |
Mixing colors at a super-pixel level to fool the eye into seeing more color than is actually present |
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When printing, which color model do we use and why? |
CMYK as it is a subtractive color model |
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Are CMYK and HSL additive color models? |
No, RGB and HSL are, CMYK is a subtractive color model |
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What does it mean to be an additive color model or a subtractive color model? |
Additive color models start with a dark screen and produce color by mixing light, subtractive color models start with a white piece of paper and mix colored inks |
