what is the meaning of vector images and graphics?

Question

im about to do a graphic design course so i need knowladge...people often say stuff like "i drawn a vector image" " arent my vector graphics so cool".........what is vector!!!!!?

Answer 1

A vector image means the information saved of the picture is saved in a mathematical format. a photograph ( raster ) image is saved in bits. From left to right, from top to bottom, Every color is saved as a dot. These dots come together and create the image. The count of how many dots there are is called the "resolution". I am sure you have heard 72 Dpi, 300 Dpi. DPi means Dots per inch. A vector image is devoid of resolution because it only uses math. It plots points called nodes and draws the lines between them as in your geometry class and drawing slopes and what not. The advantage of vector art is that it can scale to ANY size. Postage stamp to billboard can both come from the same file. You know with a scanned picture you can't do that without it looking like mush ( the "mush" is called archiving) that mush you see is the dots themselves. Remember you can NEVER and I mean NEVER add resolution to an image. You can only split the dots, but they still share the same color. This is why you have to oversample. You will learn about that soon enough. The Disadvantage to vector art is that 1) you need a hi end program to edit the art and 2) it won't look realistic. It will always have that coloring book look to it ( of course I am leaving out gradient meshes, but that's for another story )

Answer 2

Vector Graphics Definition

Answer 3

Vector Image Definition

Answer 4

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A vector image is one of the two major graphic types (the other being bitmap). Vector graphics are made up of many individual objects. Each of these objects can be defined by mathematical statements and has individual properties assigned to it such as color, fill, and outline. Vector graphics are resolution independent because they can be output to the highest quality at any scale. Bitmap-based images are comprised of pixels in a grid. Each pixel or "bit" in the image contains information about the color to be displayed. Bitmap images have a fixed resolution and cannot be resized without losing image quality. Common bitmap-based formats are JPEG, GIF, TIFF, PNG, PICT, and BMP. Most bitmap images can be converted to other bitmap-based formats very easily. Bitmap images tend to have much large file sizes than vector graphics and they are often compressed to reduce their size. Although many graphics formats are bitmap-based, bitmap (BMP) is also a graphic format.

Answer 5

excerpts from wikipedia:

Vector graphics (also called geometric modeling or object-oriented graphics) is the use of geometrical primitives such as points, lines, curves, and polygons, which are all based upon mathematical equations to represent images in computer graphics. It is used in contrast to the term raster graphics, which is the representation of images as a collection of pixels, and used as the sole graphic type for actual photographic images.

basically, vector graphics uses mathematical equations (that you don't have to know, it's handled by the software) to draw...

more details on link below...

hope that's help...

Answer 6

meaning vector images graphics

Answer 7

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Answer 9

In simple terms:
When you save a picture you don't save your work. You save a representation of your work. fi: A JPG gets compressed and isn't as crisp as when you made it.

Now when you draw a vector image you save what you did. When you (or anybody else) opens that image the computer retraces you steps and vitually redraws you picture for you.
The pictuture is exactly like you made it.

Answer 10

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