Discuss various file formats available also differentiate between GIF, JPEG and PNG file format.



The two most popular file formats used for the web are GIF and JPEG. Now, the third format PNG has become very popular in recent years.
GIF
          The GIF (Graphic Interchange format) is one of the most widely used format on the web. The GIF format was developed by Compute Serve Corporation in 1987. It used LZW(Lempel-Zif-Welch) compression algorithm to compress the data stored in each file. It only supports 8-bit color. GIF images are recognized by .gif extension.
JPEG
          JPEG (Joint Photographic Experts Group) is another commonly used format on the web. Its name has been derived from joint Photographic Experts Group, the organization created the format in 1990.It supports 24-bit colors information which is more than what human eyes can see.JPEG images usually have .jpg extension.
PNG
          PNG (Portable Network Graphics) is becoming the most popular format on web in recent years. It was developed as an enhanced alternative to GIF format. PNG images have .PNG extension. PNG support 24-bit colored images and produce background transparency without jagged edges. It provides support for    2-D progressive rendering which is based on pixels than lines. It makes the appearances of PNG image faster as compared to others.
DIFFERENCE BETWEEEN GIF, JPEG AND PNG
GIF
JPEG
PNG
1



2

3

4


5
Stands for Graphic Interchange Format


Uses Lossless compression technique
Supports 8 bit colors

Suitable for text, artwork, icons and cartoons.
Extension is .gif
Stands for Joint Photographic Experts Group

Uses lossy compression technique.
Supports 24-bit colors

Suitable for photographs


Extension is .jpg or .jpeg
Stands for Portable Network Graphics.


Uses lossless compression technique
Supports 24-bit colors

Suitable for text, icons etc.

Extension is .png

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