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Mastering Digital Image Search Techniques

Learn about digital image formats, technical specifications, and how to search, find, and use images effectively. Understand image quality, size, weight, and formats like JPG, GIF, BMP, and more. Discover photos, clipart, icons, animations, and buttons. Find images using search engines and web portals with keywords and advanced search options.

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Mastering Digital Image Search Techniques

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Presentation Transcript

  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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