Digital Graphics'
An effective navigation design is crucial for a website. Without navigation, a site loses all sense of structure and organisation. Navigation is the way to guide readers through a website, so that they know how much content is available and where to find what they are looking for.
Simplicity is crucial for website navigation. Navigation can be presented in many ways, from side bars to menus in the header or footer or in a fixed frame that stays present anywhere in a website, but the key of an effective navigation of a website is its structure and organisation. The importance of a structured hierarchy is directly proportional to the amount of content of the website. Digital imaging or digital image acquisition is the creation of digital images, typically from a physical scene. The term is often assumed to imply or include the processing, compression, storage, printing, and display of such images. The most usual method is by digital photography with a digital camera but other methods are also employed. Interactive graphics are used elsewhere e.g. games(Sims) & DVDs(star wars)
here is a link to a screen shot of both: http://www.teuvz.com/files/2011/07/sims_screen003.jpg
Flash Animation
animation is a series of stop motion consisting of the animation of photographs played really fast for a short burst of time.can be stored or recorded on either analogue media, such as Flip book, motion picture film, video tape, on digital media, including formats such as animated GIF, Flash animation or digital video. To display it, a digital camera, a computer, or a projector are used. Flash animations are typically distributed by way of the World Wide Web, in which case they are often referred to as Internet cartoons, online cartoons, or web toons. Web Flash animations may be interactive and are often created in a series. A Flash animation is distinguished from a Web comic, which is a comic strip distributed via the Web, rather than an animated cartoon. Flash animation is now taught in schools throughout the UK and can be taken as a GCSE and A-level. (http://en.wikipedia.org/wiki/Flash_animation)Header
In many disciplines of computer science, a header is a unit of information that precedes a data object. In a network transmission, a header is part of the data packet and contains transparent information about the file or the transmission. In file management, a header is a region at the beginning of each file where bookkeeping information is kept. The file header may contain the date the file was created, the date it was last updated, and the file's size. The header can be accessed only by the operating system or by specialised programs. In e-mail, the first part of an e-mail message containing controlling and meta-data such as the Subject, origin and destination e-mail addresses, the path an e-mail takes, or its priority. The header will contain information about the e-mail client, and as the e-mail travels to its destination information about the path it took will be appended to the header.
Pixels
In digital
imaging, a pixel (picture element)is a physical point in a
raster image, or the smallest addressable element in a display device; so it is
the smallest controllable element of a picture represented on the screen. The
address of a pixel corresponds to its physical coordinates. LCD pixels are
manufactured in a two-dimensional grid, and are often represented using dots or
squares, but CRT pixels correspond to their timing mechanisms and sweep rates
GIF
GIFS are lots of pictures layered on top of one another to make a mini movie in a sense, The format supports up to 8 bits per pixel for each image, allowing a single image to reference its own palette of up to 256 different colors chosen from the 24-bit RGB color space and allows a separate palette of up to 256 colors for each frame. These palette limitations make the GIF format unsuitable for reproducing color photographs and other images with continuous color, but it is well-suited for simpler images such as graphics or logos with solid areas of color.
Colour
colour (see spelling
differences) is the visual
perceptual property corresponding in humans to the
categories called red, blue, yellow, green and
others. Colour derives from the spectrum of
light (distribution of light power versus wavelength)
interacting in the eye with the spectral sensitivities of the light receptors. Colour categories and physical
specifications of colour are also associated with objects, materials, light
sources, etc., based on their physical properties such as light absorption,
reflection, or emission spectra. By defining a colour space colour's can be identified numerically by their coordinates. Because perception of colour stems
from the varying spectral sensitivity of different types of
cone cells
in the retina
to different parts of the spectrum, colour's may be defined and quantified by the
degree to which they stimulate these cells. These physical or physiological
quantification of colour, however, do not fully explain the psycho physical
perception of colour appearance.
Bitmap
The BMP format stores colour data for each pixel in the image without any compression. For example, a 10x10 pixel BMP image will include colour data for 100 pixels. This method of storing image information allows for crisp, high-quality graphics, but also produces large file sizes. The JPEG and GIF formats are also bitmaps, but use image compression algorithms that can significantly decrease their file size. A representation in which each item corresponds to one or more bits of information, esp.
Bit depth
there are over 167,772,16 different colours on this one picture
vector
Vector
graphics is the use of geometrical
primitives such as points, lines, curves, and shapes which are all based on
mathematical expressions, to represent images in computer graphics. Vector
graphics are based on vectors (also called paths, or strokes) which lead
through locations called control points. Each of these points has a definite
position on the x and y axes of the work plan. Each point, as well, is a
variety of database, including the location of the point in the work space and
the direction of the vector (which is what defines the direction of the track).
the image below shows that vector images don't get pixelated at all unless you zoom in over 250 times inwards
