discuss the effect of font colour and contrast in working your document more presentable?
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Answer:
A useful way to define colors is using the widely accepted concept of “primary
color”, which define any observable color by the combination of the three primary
colors. Considering the difference between the physical properties for reflector
materials (such as papers) and luminophor materials (such as LCDs we examined in
this paper), the primary color’s definition is different on this two materials. For colors
on reflectors, the three main colors are “Red, Yellow and Green” while for colors on
luminophor the three main colors are “Red, Green and Blue”, or RGB. Because our
target is LCD, a typical kind of luminophor, we use RGB as our color definition scale
plate.
For any color shown on LCDs, its RGB has 256 different values (indicated by
consecutive integers from 0 to 255). So colors on LCDs can be defined by its three
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RGB values, respectively. For instance, the pure black can be defined as Red=0,
Green=0, Blue=0 or (RGB=0, 0, 0); the pure white can be defined as Red=255,
Green=255, Blue=255 or (RGB=255, 255, 255). The black and the white are two
extreme cases of colors. Other colors’ RGB values fall between 0 and 255. For
example, the sky blue can be defined as (RGB=0, 155, 255).
If we could make a general rank about the virtual performance of
font/background color combinations in terms of their RE, our goal to compare the RE
under different font/color combinations would be realized. In other word, we should
get a complete ranking of the RE for all the possible color combinations. However, as
we could imagine, the number of colors defined by RGB could be more than 16
million (256×256×256), let along the combination between any two of them (more
than 200 trillion combinations). Thus we must find a more efficient way to realize the
goal rather than enumerate all the possibilities.
Previous studies on the effect of font/background color com
Explanation: