Inside screenshot

Cockpit Screenshot

What are the characteristics of the following file formats:

Bitmap: An image format that only defines an image in terms of black and white.

GIF: Graphics Interchange Format, is a compressed graphic file normally used for images that do not require too many colors (maximum 256).

PNG: PNG is a graphics format specifically designed for use on the World Wide Web. PNG enable compression of images without any loss of quality, including high-resolution images.

JPEG: JPEG graphics are capable of reproducing a full range of color while still remaining small enough for Web use. Most of the photographs you see on the Web are JPEG format.

PSD: the default proprietary file of Adobe Photoshop. It allows for Adobe Photoshop formatting, Layers, DropShadows, etc. and is compatible with a variety of Adobe software such as InDesign.

SVG: Scalable Vector Graphics is a vector graphics language written in XML. Using SVG, graphics can be coded directly into an XML document.

What is an alpha channel? How can this be useful in your coursework project?

An Alpha channel is an 8-bit colour channel which is used to specify the transparency of each pixel in an image. An alpha channel works like a sophisticated stencil, and is the digital equivalent of a matte.
www.warehouseexpress.com/photo/camcorders/glossary.html

This will help us in our coursework as it can make backgrounds to images which we dont want, transparent which will make it easier to move selected parts of the image.

What does RGB have to do with graphics?

RGB stands for red, green, blue and is the color language of computers. RGB defines the colours of the picture by using contrast of each colour in each pixel. So RGB will determine the colour of your graphic.
www.photoshopelementsuser.com/glossary.php

2) What is the difference between VECTOR and BITMAP graphics? Explain both terms.

Bitmap graphics are composed of pixels, which contain specific color information. A pixel is very small, a single image may be composed of hundreds of thousands of individual pixels. Much like cells revealed from a piece of tissue when seen under a microscope, these pixels are only clearly and individually visible when the image is magnified

Rather than being composed of pixels, Vector graphics consist of points, lines, and curves which, when combined, can form complex objects. These objects can be filled with solid colors, gradients, and even patterns.

Vector graphics are mathematical creations. For this reason, the programs that are used to create them save instructions on how the image should be drawn, rather than how it looks. This is the key difference between the two types of graphics.

1) What is a pixel?

A pixel which is short for 'picture element' is a single point in a graphic image. Each information element is an abstrct sample and not really a dot or a square. With care and accuracy pixels in an image can be reproduced at any size without the appearance of visible dots or squares however they are occasionally reproduced as dots or squares and can stand out when not fine enough.
http://en.wikipedia.org/wiki/Pixel