Digital imaging part i

437 views

Published on

brief informative on digital imaging used to help tutor prospective students on eduwizards.com

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
437
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • http://www.bitpipe.com/tlist/Digital-Imaging.html
  • http://en.wikipedia.org/wiki/Raster_graphics
  • http://en.wikipedia.org/wiki/Image_file_formats#Raster_formats
  • http://en.wikipedia.org/wiki/Image_file_formats#Raster_formats
  • http://en.wikipedia.org/wiki/Image_file_formats#Raster_formats
  • Digital imaging part i

    1. 1. <ul>melissaheiser.com <li>This is free and formatted for web-use: Review slides currently not working, but can still be used manually as study tool. </li></ul>
    2. 2. <ul><li>What is Digital Imaging
    3. 3. Software Available
    4. 4. Raster Images
    5. 5. File Format Types
    6. 6. Saving a File: Types of Compression
    7. 7. Review </li></ul>
    8. 8. <ul><li>“ A method of image editing in which a picture is scanned from an original document to digital information in the form of pixels that can be read and manipulated by a computer, and subsequently reformed as a visible image”(Techtarget, 2009)
    9. 9. Is also known as: </li></ul><ul><ul><li>Digital Image Processing
    10. 10. Digital Photographic Imaging </li></ul></ul>
    11. 11. <ul><li>The most popular software for use in manipulation of photos is Photoshop which is created by Adobe Systems Incorporated. Competitors are (not limited to) Paint Shop Pro or a free software Gimp .
    12. 12. It all depends on your budget, project needs, and in some cases clients/potential employers prefer one over the other. </li></ul>
    13. 13. <ul>“ Raster graphics image or bitmap is a data structure representing a generally rectangular grid of pixels, or points of color, viewable via a monitor, paper, or other display medium” (Wikipedia, 2009) </ul><ul>EXAMPLE FROM THE NET </ul>Translation: little boxes of color and when enlarged, instead of a clean image, its those wonderful boxes of color in blurry vision. Don’t get your eyeglasses, just know the limitations.
    14. 14. <ul>RASTER IMAGE FORMATS </ul><ul><li>JPEG </li></ul><ul><ul><li>JPEG (Joint Photographic Experts Group) 8 bits per color, (Red,Blue,Green), consequently 24 bit total
    15. 15. Typical format cameras save photos in </li></ul></ul><ul><li>GIF </li></ul><ul><ul><li>GIF (Graphics Interchange Format) is limited to an 8-bit palette-256 colors.
    16. 16. Simple graphics, logos, cartoon images (clipart), some animations </li></ul></ul>
    17. 17. <ul>RASTER IMAGE FORMATS </ul><ul><li>The PNG (Portable Network Graphics) </li></ul><ul><ul><li>True
    18. 18. color (16 million colors)
    19. 19. “ PNG file excels when the image has large, uniformly colored areas. The lossless PNG format is best suited for editing pictures”(Wikipedia, 2009)
    20. 20. Save final project as a JPEG however due to smaller file size and supported better by older browsers. </li></ul></ul><ul><li>BMP </li></ul><ul><ul><li>The BMP file format (Windows bitmap) </li><ul><li>For graphics within that system
    21. 21. Large file, simple, however only in the Windows OS </li></ul></ul></ul><ul><li>Other of many formats </li></ul><ul><ul><li>TIFF
    22. 22. RAW </li></ul></ul>
    23. 23. <ul>RASTER IMAGE FORMATS </ul><ul><li>The PNG (Portable Network Graphics) </li></ul><ul><ul><li>True
    24. 24. color (16 million colors)
    25. 25. “ PNG file excels when the image has large, uniformly colored areas. The lossless PNG format is best suited for editing pictures”(Wikipedia, 2009)
    26. 26. Save final project as a JPEG however due to smaller file size and supported better by older browsers. </li></ul></ul><ul><li>BMP </li></ul><ul><ul><li>The BMP file format (Windows bitmap) </li><ul><li>For graphics within that system
    27. 27. Large file, simple, however only in the Windows OS </li></ul></ul></ul><ul><li>Other of many formats </li></ul><ul><ul><li>TIFF
    28. 28. RAW </li></ul></ul>
    29. 29. <ul>LOSSY COMPRESSION </ul><ul><li>Image Quality is more important than file size
    30. 30. Therefore will end up with a larger file size </li></ul><ul>LOSSLESS COMPRESSION </ul><ul><li>Need smaller file size </li></ul><ul><li>Removes bits of image that the computer feels you wouldn’t be able to figure out its gone anyways </li></ul><ul><li>Unfortunately the higher the compression the more you begin to notice the image deteriorating. This is called </li></ul><ul>“ Compression artifacting” </ul>
    31. 31. <ul>Correct - Click anywhere to continue </ul><ul>Incorrect - Click anywhere to continue </ul><ul>You answered this correctly! </ul><ul>Your answer: </ul><ul>The correct answer is: </ul><ul>You did not answer this question completely </ul><ul>You must answer the question before continuing </ul><ul>Submit </ul><ul>Submit </ul><ul>Clear </ul><ul>Clear </ul><ul>A) </ul><ul>True </ul><ul>B) </ul><ul>False </ul>
    32. 32. <ul>Correct - Click anywhere to continue </ul><ul>Incorrect - Click anywhere to continue </ul><ul>You answered this correctly! </ul><ul>Your answer: </ul><ul>The correct answer is: </ul><ul>You did not answer this question completely </ul><ul>You must answer the question before continuing </ul><ul>Submit </ul><ul>Submit </ul><ul>Clear </ul><ul>Clear </ul><ul>A) </ul><ul>True </ul><ul>B) </ul><ul>False </ul>
    33. 33. <ul>Correct - Click anywhere to continue </ul><ul>Incorrect - Click anywhere to continue </ul><ul>You answered this correctly! </ul><ul>Your answer: </ul><ul>The correct answer is: </ul><ul>You did not answer this question completely </ul><ul>You must answer the question before continuing </ul><ul>Submit </ul><ul>Submit </ul><ul>Clear </ul><ul>Clear </ul><ul>A) </ul><ul>.bmp </ul><ul>B) </ul><ul>.gif </ul><ul>C) </ul><ul>.jpeg </ul><ul>D) </ul><ul>.ppt </ul>
    34. 34. <ul>Correct - Click anywhere to continue </ul><ul>Incorrect - Click anywhere to continue </ul><ul>You answered this correctly! </ul><ul>Your answer: </ul><ul>The correct answer is: </ul><ul>You did not answer this question completely </ul><ul>You must answer the question before continuing </ul><ul>Submit </ul><ul>Submit </ul><ul>Clear </ul><ul>Clear </ul><ul>A) </ul><ul>True </ul><ul>B) </ul><ul>False </ul>
    35. 35. <ul>Correct - Click anywhere to continue </ul><ul>Incorrect - Click anywhere to continue </ul><ul>You answered this correctly! </ul><ul>Your answer: </ul><ul>The correct answer is: </ul><ul>You did not answer this question completely </ul><ul>You must answer the question before continuing </ul><ul>Submit </ul><ul>Submit </ul><ul>Clear </ul><ul>Clear </ul><ul>A) </ul><ul>True </ul><ul>B) </ul><ul>False </ul>
    36. 36. <ul>Correct - Click anywhere to continue </ul><ul>Incorrect - Click anywhere to continue </ul><ul>You answered this correctly! </ul><ul>Your answer: </ul><ul>The correct answer is: </ul><ul>You did not answer this question completely </ul><ul>You must answer the question before continuing </ul><ul>A) </ul><ul>True </ul><ul>B) </ul><ul>False </ul><ul>Submit </ul><ul>Submit </ul><ul>Clear </ul><ul>Clear </ul>
    37. 37. <ul>Correct - Click anywhere to continue </ul><ul>Incorrect - Click anywhere to continue </ul><ul>You answered this correctly! </ul><ul>Your answer: </ul><ul>The correct answer is: </ul><ul>You did not answer this question completely </ul><ul>You must answer the question before continuing </ul><ul>A) </ul><ul>.bmp </ul><ul>B) </ul><ul>.ppt </ul><ul>C) </ul><ul>.jpeg </ul><ul>D) </ul><ul>.rar </ul><ul>Submit </ul><ul>Submit </ul><ul>Clear </ul><ul>Clear </ul>
    38. 38. <ul>Your Score </ul><ul>{score} </ul><ul>Max Score </ul><ul>{max-score} </ul><ul>Number of Quiz Attempts </ul><ul>{total-attempts} </ul><ul>Question Feedback/Review Information Will Appear Here </ul><ul>Review Quiz </ul><ul>Continue </ul>

    ×