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  • Topic: Computer graphics, Adobe Photoshop, Portable Network Graphics
  • Pages : 7 (1468 words )
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  • Published : February 27, 2013
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COMPUTER GRAPHICS • The representation and manipulation of image data by a computer • The technology with which pictures or graphical representations in the general sense are generated or acquired, managed, displayed, and processed in an application-oriented manner by means of computers. Uses of Computer Graphics  Interactive Plotting for Science and Technology  Visualization for Business and Arts  Tools for Instructions (CAI & Games)  Simulation & Modeling  Computer-Aided Drafting and Design  Image Processing  2D & 3D Animation  Office Automation & Electronic Publishing Interactive Computer Graphics A level in which graphics tools allow the user to provide input/s and to receive output through screen displays. ICG application can be categorized into two types: 1. Indirect ICG - using different programming languages to display a shape/object and text such as c++,java, etc. 2. Direct ICG - using different image editing program such as adobe photoshop,corel,ulead photo impact, etc. Hardware Considerations for Graphics • Sophisticated I/O devices • Computer with high capacity processor and memory • High resolution screen segments • Massive storage device • Sound peripherals • Video / Capture cards Graphics Environment Evolution

Character Displays (1960s)

Vector Displays (1963 - 1980s)

Bitmap displays (1970s)

Synthetic and 3D Graphics (1986) Page 1

Prepared by: CHRISTINE MAGTURO

Synthetic Computing in Graphics • Geometric Modeling - The process of simulating geometric figures with a scheme of a mathematical series forming the basic figures and colors. • • Rendering - The process of simulating images with geometric models as the main graphic constituent. Geometric Models  Rendering  Images Fractals - The process of simulating artistic patterns or textures using a formula in transcendental format.

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Morphing - The process of transforming one image pattern to another. 3D Graphics

Effects - The process of adding image effects in a still or animated graphics element. 1. Color & Opacity 2. Layer Tricks 3. Filter Effects Multimedia Scheme MULTIMEDIA as define The presentation of information on a computer using the following components: • text • video elements • images and graphics • sounds • animation schemes



Prepared by: CHRISTINE MAGTURO

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Development Process EFFECTS

CLIPS

Transition  ZOOM TRANSITION  PAGE PEEL TRANSITION Filter or Video Effects  LENS FLARE FILTER Transparencies and Motion  BLUE or GREEN SCREEN WITH MOTION Prepared by: CHRISTINE MAGTURO Page 3

‘Capture’ as defined  Represents the process of converting real world video format into a computer-based format. EXAMPLE : Video clips from VHS tapes or video camera will be converted into an AVI file ‘Audio Grab’ as defined  The process of converting music or audio materials into a computer-based audio format. EXAMPLE: Music from cassette tapes or CD will be converted into MP3 files

ADOBE PHOTOSHOP CS5

Adobe Photoshop is a graphics editing program developed and published by Adobe Systems. In 1987, Thomas Knoll, began writing a program on his Macintosh Plus to display grayscale images on a monochrome display. This program, called Display.

His brother John Knoll, recommended to turn it into a fully-fledged image editing program. Thomas took a six month break from his studies in 1988 to collaborate with his brother on the program, which had been renamed ImagePro. Later that year, it was renamed to Photoshop and worked out a short-term deal with scanner manufacturer Barneyscan with about a total of 200 copies. During this time, John travelled to Silicon Valley and gave a demonstration of the program to engineers at Apple and Russell Brown, art director at Adobe. Photoshop 1.0 was released in 1990 for Macintosh exclusively.

Prepared by: CHRISTINE MAGTURO

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Windows System requirements • Intel®...
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