Chapter 4: Multimedia

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Multimedia

  • Multimedia is defined as the combination of contents.
  • Example: Audio, Video, Image, Animation, and Graphics.

Uses of multimedia
  • Entertainment
  • Music
  • Education
  • Marketing
  • Virtual Reality
  • Sales
  • Presentation
  • Computer-Based Training

Image Quality
 
  • Image Quality is defined as a characteristic of an image that measures the perceived image degradation.
  • Image quality is the integrated set of perception of the overall degree of excellence of an image.
  • Factors that influence the image quality are sharpness, contrast, dynamic range, color accuracy, distortion, etc.

Image File Format

1. GIF ( Graphics Interchange Format )
  • The most commonly used graphic file formats.
  • Contains animation.
  • Only capable of supporting a maximum of 256 colors.
  • You cannot convert directly from a JPEG to GIF format.
2. JPEG ( Joint Photographic Experts Group )
  • It compresses files to get more graphics.
  • Supports maximum color of 16.7 million
3. PNG ( Portable Network Graphic )
  • It has better compression.
  • It is best for screenshots and saving with transparent backgrounds.

Animation
  • Animation is a method in which pictures are manipulated to appear as moving images.




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