I T Presentation

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I T Presentation

  1. 1. IT Presentation Vikki Holland Stephanie Sarrou Sam Elmais Fatemeh Alibeygi
  2. 2. The difference between Raster and Vector Formats. <ul><li>Vector </li></ul><ul><li>The use of geometrical primitives such as points, lines and curves. </li></ul><ul><li>Used for images in computer graphics. </li></ul><ul><li>Raster </li></ul><ul><li>Used to represent images as a collection piece. </li></ul><ul><li>Used as the sole graphic type for actual photographic images. </li></ul>
  3. 3. Examples of Raster and Vector formats. <ul><li>This shows the difference between vector and raster formats. </li></ul>
  4. 4. The differences and similarities between JPEG and GIF <ul><li>They are both suitable for use on WebPages. </li></ul><ul><li>GIF isn’t a suitable format for photographic images as degradation of the image may be visible. </li></ul><ul><li>JPEG works well on images as it works well on photographs naturalistic work and similar material. </li></ul><ul><li>GIF is good format for saving pictures and drawings. Whereas JPEG is not as effective. </li></ul><ul><li>The colours of JPEG are not perceived as acutely as those from GIF. </li></ul>
  5. 5. Difference between embedded graphic and linked graphic images in PowerPoint and Microsoft Word. <ul><li>Embedded image is an image that is stored inside a document with no reference to any external file. </li></ul><ul><li>Linked images are images that remain outside the document, with a pointer in the document linked to an external image file. The information above was found out from a relevant webpage: www.wimba.com/demos/coursegenie/courses/Demo/page_08.htm </li></ul>
  6. 6. Colour Pallette <ul><li>A colour palette is a collection of colours that have been defined for use within a design system. An example of a small pallette would be Microsoft word with a large pallette example being some sort of Photoshop document. </li></ul>
  7. 7. Lossless Compression <ul><li>Grow to the level of compression decreases the file size, however reduces the quality of an image. </li></ul>
  8. 8. PNG Files <ul><li>Portable Network Graphics (PNG) is a bitmapped image format that employs lossless data compression. PNG supports palettes of 24-bits RGB colours or grey scale or RGB images. PNG was designed for transferring images on the internet. </li></ul>
  9. 9. Bad uses of bmp. Format files <ul><li>Decreases the quality of the data and graphics. </li></ul><ul><li>The resolution is reduced incredibly. </li></ul>
  10. 10. What is Flickr? <ul><li>A digital photo sharing website and web services suite and an online community platform, which is generally considered and early example of a web 2 application. </li></ul>

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