●Three elements of color
Colors are comprised of the three elements “hue”, “brightness”, and
“saturation.”
These three elements can be adjusted to produce various effects such as
color uniformity or accented colors.
Element
Description
Hue
The color as described by wavelength. Each hue is represented
on the “color circle.”
Brightness
The intensity of the color. The higher the brightness, the whiter
the color. The lower the brightness, the blacker the color.
Saturation
The amount of color displayed. The higher the saturation, the
deeper the color. The lower the saturation, the duller the color.
(2)Image quality
Image quality is determined by pixels, resolution, and contrast.
Chapter 9
Technology element
●Pixel
A “pixel” refers to the dots that comprise an image and is the smallest single component of the image. The higher the number of pixels, the larger
the data.
●Resolution
“Resolution” is a value that expresses the number of pixels per inch and is
a measure of the detail and smoothness of the image. The higher the resolution, the more natural and attractive the image. The lower the resolution,
the blurrier the image.
●Contrast
“Contrast” refers to the gradation of colors, and is a measure of the image
detail. The higher the contrast, the smoother the image. The lower the contrast, the clearer the colors.
(3)Graphics software
Graphics software that handle images include “painting” and “drawing”
software.
Painting type
Drawing type
Reference
Image category
Luster
Vector
Luster and vector
Characteristics
Pictures can be painted on
the computer much like painting on a piece of paper or
canvass, but the image is actually saved as a collection of
dots. There are slight differences between various software applications, but they all
feature intuitive tools.
Pictures are drawn by combining lines and curves into
different shapes like circles
and squares. The picture is
smooth even when enlarged.
Typical software
Paint, Adobe Photoshop, etc.
Adobe Illustrator, etc.
“Luster” refers to images created with a
collection of small colored dots. “Vector”
refers to images that appear as if they
were drawn with a pencil; several point
coordinates called “anchors” are created, and the images are produced by
connecting the anchors with lines, applying color to areas enclosed by lines,
etc.
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