File Extensions and terms

  1. .PNG (Portable Network Graphic)
    • -Successor to .GIF
    • -Bitmap image format
    • -Supports millions of colors
    • -Supports transparencey (floats in front of background)
    • -For web graphics ONLY (not for print)
  2. .GIF (Graphics Interchange Format)
    • -Bitmap image format
    • -Limited to 256 colors
    • -Supports tranparencey
    • -Supports Animation
    • -Graphics w/ few colors ( brand logos)
  3. .JPG (Joint Photographic Experts Group)
    • -Bitmap image format
    • -Supports millions of colors
    • -Does not support transparency
    • -Does not support animation
    • -Photographs
    • Not good for logos, but good for presenting photos.
  4. .TIFF (Tagged Image File Format)
    • -Bitmap image format
    • -Supports millions of colors
    • -Does not support transparency
    • -Does not support animation
    • -Not supported by web browsers
    • -Stores images with NO COMPRESSION
    • (Best quality, but too big for internet because ALL info is retained)
  5. .PSD (Photo Shop Document)
  6. Difference between and Photo and Graphic
    Photo are continous tone images while graphics usually have no gradients. (few colors ie: simple brand logos)
  7. File Extension:
    portion of filename folloring the final period, generally designated by 3 characters. (.JPG, .PSD, .GIF, .PNG, .TIFF)
  8. Digital Media
    a form of electronic media where data is stored in digital form. It can refer to the technical aspect of storage and transmission of info, or the end product, such as digital video, augmented reality, and digital art.
  9. Image File Format
    standardized means of organizing and encoding infor for storage in a computer file.
  10. Image Compression
    the act of making images smaller. Reduction of redundancy in the image data resulitng in the storing and transmission of info in and efficient form.
  11. Pixels
    • the smallest piece of info in an image. Squares of digital info combine to make an image. Each is on of 3 or 4 components
    • Red
    • Green
    • Blue
    • Transparency
  12. Digitizing
    Process of converting images into a format that the comuper can recognize
  13. Resolution
    regers the the amoun of info stored for each image and is measured in pixels per inch or referred to as DPI (dots per inch)
  14. What resolution are web graphics usually saved at and why
    72 DPI because thats normal moniter resolution
  15. What resolution are printed graphics uaually saved as and why?
    300 DPI because the naked eye cannot disern pixels for each other this resolution.
  16. Optimization
    conversion of image compressed as small as possible
Card Set
File Extensions and terms
different file extensions, and what they repesent