SESSION 19: PART 1, IMAGE FORMATS

 a. JPEG
 Pros of JPEG:
  • 24-bit color, with up to 16 million colors.
  • Rich colors, great for photographs that need fine attention to color detail.
  • Most used and most widely accepted image format.
  • Compatible in most OS (Mac, PC, Linux).
  Cons of JPEG:
  • They tend to discard a lot of data.
  • After compression, JPEG tends to create artifacts.
  • Cannot be animated.
  • Does not support transparency.

 GIF

 Pros of GIF:
  • Can support transparency.
  • Can do small animation effects.
  • ‘Lossless’ quality–they contain the same amount of quality as the original, except of course it now only has 256 colors.
  • Great for images with limited colors, or with flat regions of color.
 Cons of GIF:
  • Only supports 256 colors.
  • It’s the oldest format in the web, having existed since 1989. It hasn’t been updated since, and sometimes, the file size is larger than PNG.

 BMP


 Pros of BMP:
  • Works well with most Windows programs and OS, you can use it as a Windows wallpaper.
 Cons of BMP:
  • Does not scale or compress well.
  • Again, very huge image files making it not web friendly.
  • No real advantage over other image formats.


 TIFF

 Pros of TIFF:
  • Very flexible format, it supports several types of compression like JPEG, LZW, ZIP or no compression at all.
  • High quality image format, all color and data information are stored.
  • TIFF format can now be saved with layers.
 Cons of TIFF:
  • Very large file size–long transfer time, huge disk space consumption, and slow loading time.

 PNG

 Pros of PNG:
  • Lossless, so it does not lose quality and detail after image compression.
  • In a lot ways better then GIF. To start, PNG often creates smaller file sizes than GIF.
  • Supports transparency better than GIF.
 Cons of PNG:
  • Not good for large images because they tend to generate a very large file, sometimes creating larger files than JPEG.
  • Unlike GIF however, it cannot be animated.
  • Not all web browsers can support PNG.



b. PNG or TIFF.





c. GIF.


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