Digital Images

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  • 1. Digital Images Kiran Budhrani kiran.enderun@gmail.com
  • 2. Explore a beautiful media element
  • 3. Text Images Audio Video Access Select Use (capture)
  • 4. 1. WEB Access Images 2. CAMERA 3. SCANNER
  • 5. Use For Screen For Print
  • 6. Selection 4 Factors : CONTENT  What is it ? RESOLUTION   How big ?   How clear ? QUALITY How bright / dark ? FILE FORMAT  What type of file ?
  • 7. PIXELS WIDE PIXELS TALL
  • 8. Photos vs. Illustrations  Photos  Real, Evidence  Illustrations / Graphics  Representation, Not real  Illus – typically hand-drawn  Graphics – typically created with the computer
  • 9. Graphic
  • 10. Illustration
  • 11. 2D Graphic 3D Graphic
  • 12. 3D Graphic
  • 13. Logos
  • 14. File Formats   .JPEG (joint photographic experts group)  Photos   .PNG (portable network graphic)  High quality web graphics or photos  Supports transparency   .GIF (graphics interchange format)  Low quality web graphics  Supports transparency  Logos
  • 15. Common Trends Image Resolution Image Quality File Size
  • 16. Selection 4 Factors : CONTENT  Photo / Illustration RESOLUTION   Image Size QUALITY   Clarity, Brightness FILE FORMAT  File Extension
  • 17. Selection and Use FOR SCREEN FOR PRINT Content Appropriate Appropriate Resolution Low-High Must be High (file size) (file size) Quality Must be Good Must be Good Format JPG, PNG, GIF JPG, PNG
  • 18. The more megapixels a camera has, the better the pictures. 12.1 MEGA PIXELS 5 MEGA PIXELS
  • 19. The more megapixels a camera has, the better the pictures. big fat lie 12.1 MEGA PIXELS 5 MEGA PIXELS
  • 20. Understanding Megapixels 3  Megapixel  Camera  has  3  Million   %ny  colored  dots  in  a  photo   2,048 (horizontal) x 1,536 (vertical) pixels 3,145,728 pixels
  • 21.  High MP is only useful if you will usually: 1. Crop photos 2. Print photos that are blown-up  4MP camera – good enough for screen view
  • 22.   If there are more pixels in an inch.. – higher quality, higher resolution
  • 23. Compare Cropping Details 10 MP camera 5 MP camera
  • 24. 10 MP 7” 5”
  • 25. 10 MP 7” 5”
  • 26. 10 MP 7” 5”
  • 27. 10 MP 7” 5”
  • 28. 5 MP 7” 5”
  • 29. 5 MP 7” 5”
  • 30. 5 MP 7” 5”