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Welcome to Photoflashgraphics
"Glossary of Graphic Terms."
Algorithm
A detailed sequence of steps for
solving a logical or mathematical problem or
performing a task.
Additive Colour
A colour produced by
light falling onto a surface, as compared to
subtractive colour. The additive primary colours
are red, green and blue.
Anti-alias
The blending of pixel colours on the perimeter of
hard-edged shapes, like type, to smooth undesirable
edges (jaggies).
Artwork
All original
copy, including type, photos and illustrations,
intended for printing. Also called art.
Alpha Channel
A special 8-bit grayscale channel that is used for
saving a selection.
CIE-Lab
A colour standard based on imaginary primary
colours XYZ, which are purely theoretical and
independent of device-dependent colour gamuts such
as RGB and CMYK. The virtual colours have been
selected so that all colours which can be perceived
by the human eye lie within their colour
space.
CMYK
Acronym for cyan-magenta-yellow-black. A colour
model that describes each colour in terms of the
quantity of each secondary colour (cyan, magenta,
yellow), and "key" (black) it contains. The CMYK
system is used for printing.
Colour
Balance
Refers to amounts of
process colours that simulate the colours of the
original scene or photograph.
Colour
Cast
Unwanted colour affecting an
entire image or portion of an image.
Colour
Correct
Adjust the relationship
among the process colours to achieve desirable
colours.
Colour
Gamut
Range of hues possible
to reproduce using a specific device, such as a
computer screen, or system, such as four-colour
process printing. colours.
Colour
Model
Way of categorizing
and describing the infinite array of colours found
in nature.
Composition
(1) In typography, the assembly
of typographic elements, such as words and
paragraphs, into pages ready for printing. (2) In
graphic design, the arrangement of type, graphics
and other elements on the page.
Crop
To cut off part of an image, such as unneeded
sections of a graphic or extra white space around
the borders.
Crop Marks
Lines near the edges
of an image indicating portions to be reproduced.
Also called cut marks and tic marks.
DPI
(Dots-Per-Inch)
Acronym for dots per inch. A measure of screen and
printer resolution that is expressed as the number
of dots that a device can print or display per
linear inch.
Duotone
A colour mode which adds a single accent colour to
a grayscale image.
EPS
Encapsulated Post
Script, a known file format usually used to
transfer post script information from one program
to another.
Encode
To convert a graphics file from one size to
another, either larger or smaller, for purposes of
printing, editing, or transmitting
electronically.
Flattening
A Photoshop CS
process in which all visible layers are merged into
the background, greatly reducing file size.
Flattening an image discards all hidden layers and
fills the remaining transparent areas with
white.
Graphic
Terms F-Z
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