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Digital images

Digital images. Search, find, use…. Before we start. What do we need? Hardware Software. Hardware. Computer + internet Digital camera Scanner Tablet USB-stick. Software. MS Internet Explorer or FireFox Freeware . Lesson 1: technical information. ► The weight:

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Digital images

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  1. Digital images Search, find, use…

  2. Before we start What do we need? • Hardware • Software

  3. Hardware • Computer + internet • Digital camera • Scanner • Tablet • USB-stick

  4. Software • MS Internet Explorer or FireFox • Freeware

  5. Lesson 1: technical information ►The weight: • Highcompression=light=badquality • Smallcompression=heavy=goodquality • 1 Megabyte (MB) = 1000 Kilobyte (KB) • 1 Gigabyte (GB) = 1000 Megabyte (MB)

  6. Lesson 1: technical information ► The size, dimensions: • Expressed in pixels • Small amount of pixels =badquality • Big amount of pixels =goodquality • Paper = A4 = at the very least 800 x 600 pixels • Paper = A5 = at the very least 400 x 300 pixels

  7. Lesson 1: technical information pixels Bad Good

  8. Lesson 1: technical information Bad

  9. Lesson 1: technical information Good

  10. Lesson 1: technical information Good

  11. Lesson 1: technical information Good

  12. Lesson 1: technical information ► The image format: • File extensions JPG GIF BMP PNG RAW TIFF

  13. Lesson 1: technical information ► The image format: File extensions • GIF • 256 colors • Drawings • Not complex

  14. Lesson 1: technical information ► The image format: File extensions • JPG • Millions of colors • Photos • Shades of color

  15. Lesson 1: technical information ► The image format: File extensions • PNG • Millions of colors • Photos • Lossless compression

  16. Lesson 1: technical information ► The image format: File extensions • BMP • Millions of colors • Very heavy, old… • 24-bits true-color = NO compression

  17. Lesson 1: technical information ► Where, how can we know? File format Size Weight

  18. Lesson 1: technical information ► Where, how can we know? Properties Size

  19. Lesson 2: discover ►Photos

  20. Lesson 2: discover ►Photos ►Clipart ►Icons ►Animations ►Buttons ►Pictograms…

  21. Lesson 2: discover ►Images, drawings, clipart…

  22. Lesson 2: discover ►Animations

  23. Lesson 2: discover ►Icons

  24. Lesson 2: discover ►Buttons ► Pictograms

  25. Lesson 3: search ►Search engine • Keywords • Wide approach • Advanced search ►Web portal • Already catagorized • Narrowed search

  26. Lesson 3: search ►Search engines

  27. Lesson 3: search ►Web portal Photos Part 1

  28. Lesson 3: search ►Web portal Photos Part 2

  29. Lesson 3: search ►Web portal Clipart

  30. Lesson 3: search ►Web portal Icons ►Web portal Pictograms

  31. Lesson 3: search ►Web portal Animations

  32. Lesson 4: software

  33. Website http://project.arteveldehs.be/llo/beelden/blad06.htm

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