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Multimedia Mr. Sanchez. Multimedia  Defined Integration of text, still and moving images, and sound to communicate.  Issues Time Longer downloads Bigger.

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Presentation on theme: "Multimedia Mr. Sanchez. Multimedia  Defined Integration of text, still and moving images, and sound to communicate.  Issues Time Longer downloads Bigger."— Presentation transcript:

1 Multimedia Mr. Sanchez

2 Multimedia  Defined Integration of text, still and moving images, and sound to communicate.  Issues Time Longer downloads Bigger learning curve for designer Search engine unfriendly Balance choices for the purpose  Identify the Use Ask  Who is your audience and what is your message?  How will the setting or interface look?  Which multimedia elements fit into the interface and compliment the message?  What is the outcome expected?

3 Words in Multimedia  Words can be: Written Spoken Sung

4 Images in Multimedia  Images can be: Drawings Charts Diagrams Paintings Photographs Buttons Animation or video Note: images will be discussed in depth further into this lecture.

5 Sound in Multimedia  Sound, also called audio, can be: Voice-over or narration Sound effects Music

6 Audio and the Web  Delivery Download file  Larger file=longer download time Embedded  Does not allow download - BAD Streaming  Users listen as the connection is made  Uses buffer  Livecasts  File Types.wav,.mp3

7 Video in Multimedia  Video can be: Live Recorded

8 Video and the Web  Requires high bandwidth and player  Types Download, streaming Internet TV  File Types.avi,.flv,.mov,.mpg,

9 Multimedia Productions  Defined: Storytelling through the use of text, still and moving images, and sound.  Types of multimedia productions Presentations Tutorials Games Simulations Web pages

10 Working with Images Understand image file formats and when to use an image file type.

11 Image Importance  Images… illustrate content are crucial for name recognition and branding provide backdrops for other activities offer a means of navigating a Web site  Good Images… are aesthetically pleasing communicate well use minimal bandwidth relevant to the page’s purpose are small files

12 Digital Imaging Concepts  Pixels short for “pixel element” smallest unit displayed by a monitor provide color information

13 Color Models  Color Models handles image colors and display differently chosen based on purpose  RGB - red, green, blue used for electronic display mode format: R, G, B in decimal and hexadecimal form or FF0000  CMYK Cyan, Magenta, Yellow, black (K) used for print media  Note: never go from CMYK to RGB  Grayscale 256 shades of gray each pixel has a brightness value.  0=black, 255=white

14 Resolution  Defined: The number of pixels present in a monitor’s height and width or dots per inch (dpi) The higher the resolution the more detail Monitor Resolutions  800x600, 72 or 96dpi  1024x768, 72 or 96dpi  1162x864, 72 or 96dpi LCD Monitors have fixed resolutions  Output resolution Dictated by the output device

15 Bitmap/Raster Image Vector Image

16 Graphic Formats  Bitmaps/Raster Most common Each color is an individual value Composed of small squares Large images = large file sizes Use for photos, drop shadows, soft or blurry edges Distorts when stretched Sub-types  JPG, GIF, PNG  Vector Color is a mathematical equation  Size changes force mathematical re-calculation  Increasing the image does not increase the file size Use for line art, shapes and illustrations Does not distort because color is recalculated Sub-types  AI, WMF Original Distorted

17 File Types – Electronic Media  GIF GIF Raster Platform independent Limited to 256 colors  Use for broad expanses of color – no photos Supports transparency Lossless format  During compression, color info is not lost  GIF89a Raster Animated gif Static images together in motion Does not require a plug-in Original Distorted

18 Image File Formats – Part 2  JPEG (Joint Photographic Experts Group) JPEG Raster Supports 16+ million colors Compressed automatically  Results in image degradation Lossy format  As compression increases, colors are dropped from the image Will display differently on a MAC

19 Image File Formats – Part 3  PNG (Portable Networks Graphic) PNG Combines the best of GIF and JPEG Supports compression and high bit depth 280 thousand billion colors  Page Description Languages (PDF) Describes the layout of a printed page of graphics and text Requires a Adobe Reader plugin to view online

20 Image File Formats – Part 4  SVG (Scalable Vector Graphics) Uses XML to describe shapes in 2D  Allows the image to become an object Supports animation, fills, and gradients Use for line art and shapes Microsoft uses it to embed images in ed document. Circuit - NPN Transistor npn.xpm

21 Image File Formats – Print Media  Print Media Business cards, brochures, flyers, etc. Formats  Eps –Encapsulated Postscript  Tif or tiff –Tagged Image File Format  Pct –Picture File Print Media files… cannot be used on the Internet are 150+ dpi in resolution

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