emtechlesson 6

• the processes of altering images, whether they are digital

photographs, traditional photo chemical photographs, or

illustrations. Traditional analog image editing is known as

photo retouching, using tools such as an airbrush to

modify photographs, or editing illustrations with an

traditional art medium.

• Which can be broadly grouped into vector

graphics editors, raster graphics editors, and 3 mo e ers

are the primary tools with which a user may manipulate,

enhance, and transform images.

are stored in a computer in the form of a grid

of picture elements or pixels.

such as Adobe Illustrator, Inkscape and etc.

are used to create and modify vector images,

which are stored as descriptions of lines, Bezier

curves and text instead of pixels.

is the process of

developing a mathematical representation of

any three dimensional surface of an object via

specialized software. The product is called a 3D

model. It can be displayed as a two-dimensional

image through a process called 3D rendering or

used in a computer simulation or physical

p enomena.

use many colored pixels or individual building blocks to form a

complete image JPEGs, GIFs and PNGs are common raster

image types. Almost all of the photos found on the web and in

print catalogs are raster images.

alternatively, allow for more flexibility. Constructed using

mathematical formulas rather than individual colored blocks,

vector file types such as EPS, A1 and PDF are excellent for

creating graphics that frequently require resizing.

is the process of

developing a mathematical representation of

any three dimensional surface of an object via

specialized software. The product is called a 3D

model. It can be displayed as a two-dimensional

image through a process called 3D rendering or

used in a computer simulation or physical

phenomena.

JPEG

PNG