BT0077, Multimedia Systems

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ASSIGNMENT

PROGRAM	BSc IT
SEMESTER	THIRD
SUBJECT CODE & NAME	BT0077, Multimedia Systems
CREDIT	2
BK ID	B1004
MAX. MARKS	30

Q. 1 Explain the following color models

1. HSB model

Answer: Based on the human perception of color, the HSB model describes three fundamental characteristics of color:

·                 Hue is the color reflected from or transmitted through an object. It is measured as a location on the standard color wheel, expressed as a degree between 0 and 360. In common use, hue is identified by the name of the color such as red, orange, or green.

·                 Saturation, sometimes called chroma, is the strength or purity of the color. Saturation

2. RGB model

Answer : RGB and its subset CMY form the most basic and well-known color model. This model bears closest

3. CMYK model

Answer : Cyan, magenta, and yellow correspond roughly to the primary colors in art production: red, blue,

4. L*a*b model

Answer : The L*a*b color model is based on the model proposed by the Commission Internationaled'Eclairage (CIE

2. Describe in brief the following

1. Calligraphy

ANSWER : Calligraphy is a visual art related to writing. It is the design and execution of lettering with a broad tip instrument or brush (as opposed to built up lettering, in which the letters are drawn). A contemporary calligraphic practice can be defined as, "the art of giving form to signs in an expressive, harmonious, and skillful manner".

Modern calligraphy ranges from functional inscriptions and designs to fine-art pieces where the letters may or may not be legible. Classical calligraphy differs from typography and non-classical hand-lettering, though a

2. Text in multimedia application

Answer : text is an important component used in many multimedia applications.they are characters that are used to create words, sentences and paragraphs. text alone provide just one source of information. yet, text is good at providing basic information. it is the simplest, and often the most effective way to get one's

Q. 3. Describe the following file formats:

1. Photoshop Format

Answer::Adobe Photoshop is a raster graphics editor developed and published by Adobe Systems for Windows and OS X.  Photoshop was created in 1988 by Thomas and John Knoll. Since then, it has become the de facto industry standard in raster graphics editing, such that the terms "photoshopping" and "photoshop contest" were born. It can edit and compose raster images in multiple layers and supports

2) Photoshop EPS:

Answer : The EPS file type is primarily associated with 'Encapsulated PostScript'. There are two distinct types of .EPs files, one of which is a vector based graphics file and can be opened and easily edited for type, color, etc. in Adobe Illustrator or PC vector based programs like Corel Draw. They can be CMYK color, or flat pantone color based. These files could be "placed' or "imported" into Pagemaker (or Word, Quark, etc.), but not opened by it. They can be almost infinitely scaled in size without degrading the output

3) EPS TIFF or EPS PICT Preview:

Answer : Encapsulated PostScript (EPS) language file format can contain both vector and bitmap graphics and is supported by virtually all graphics, illustration, and page-layout programs. EPS format is used to transfer PostScript artwork between applications. When you open an EPS file containing vector graphics, Photoshop rasterizes the image, converting the vector graphics to pixels.

EPS format supports Lab, CMYK, RGB, Indexed Color, Duotone, Grayscale, and Bitmap color modes, and does not support alpha channels. EPS does support clipping paths. Desktop Color Separations (DCS)

4) PCX:

Answer : PCX, standing for Personal Computer Exchange, is an image file format developed by the now-defunct ZSoft Corporation of Marietta, Georgia. It was the native file format for PC Paintbrush and became one of the first widely accepted DOS imaging standards, although it has since been succeeded by more sophisticated image formats, such as BMP, JPEG, and PNG. PCX files commonly stored palette-indexed images ranging from 2 or 4 colors to 16 and 256 colors, although the format has been extended to

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