|
|
Computer graphics fall into two main categories--bitmap and
vector. You can work with both types of graphics in Photoshop and
ImageReady; moreover, a Photoshop file can contain both bitmap and vector data.
Understanding the difference between the two categories helps as you create,
edit, and import artwork.
Bitmap images
Bitmap images--technically
called raster images--use a grid of colors known as pixels to represent images.
Each pixel is assigned a specific location and color value. For example,
a bicycle tire in a bitmap image is made up of a mosaic of pixels in that
location. When working with bitmap images, you edit pixels rather than objects
or shapes.
Bitmap images are the most
common electronic medium for continuous-tone images, such as photographs or
digital paintings, because they can represent subtle gradations of shades and
color. Bitmap images are resolution-dependent--that is, they contain a fixed
number of pixels. As a result, they can lose detail and appear jagged if they
are scaled on-screen or if they are printed at a lower resolution than they
were created for.
Example of a bitmap image at
different levels of magnification
Vector graphics
Vector graphics are made up
of lines and curves defined by mathematical objects called vectors.
Vectors describe an image according to its geometric characteristics. For
example, a bicycle tire in a vector graphic is made up of a mathematical
definition of a circle drawn with a certain radius, set at a specific location,
and filled with a specific color. You can move, resize, or change the color of
the tire without losing the quality of the graphic.
Vector graphics are
resolution-independent--that is, they can be scaled to any size and
printed at any resolution without losing detail or clarity. As a result,
vector graphics are the best choice for representing bold graphics that must
retain crisp lines when scaled to various sizes--for example, logos.
Example of a vector graphic
at different levels of magnification
Because computer monitors
represent images by displaying them on a grid, both vector and bitmap data is
displayed as pixels on-screen.
Posts
Great info! I recently came across your blog and have been reading along. I thought I would leave my first comment. I don’t know what to say except that I have. Background Removal Thank you for such a well written article. It’s full of insightful information and entertaining descriptions. Your point of view is the best among many.
ReplyDeleteI would like to say that this blog really convinced me to do it! Thanks, very good post. Clipping Path Services
ReplyDeleteI like image.good information.Gorgeous this web page will be famous amid all blogging users, due to it’s fastidious content and article.
ReplyDeleteIt is a very nice post. thanks for sharing!
https://www.clippingpathexclusive.com/
ReplyDeleteThanks for sharing this useful info..clipping path service
A person essentially help to make seriously articles I would state. This is the first time I frequented your web page and thus far? I surprised with the research you made to create this particular publish amazing. Great job! SC
ReplyDeleteYou see, although backlinks remains as a vital aspect of SEO and it's also, one of the best methods that search engines utilize to rank and index content - the old fashion way of linking is now in the past. Click This Link Letting traffic, leads & sales slip through your fingers is a not a good thing for your business.
ReplyDeleteThanks , I have just been searching for info about this subject for ages and yours is the best I have discovered so far. But, what about the conclusion? Are you sure about the source? Web Design
ReplyDelete