GIF (Graphics Interchange Format) is not a data compression method. The original version of GIF is known as GIF87a. It is graphical image format that uses variant of LZW to compress the graphical data and allows to send image between different computers. It scans the image row by row and discovers pixel correlated within row not between rows. GIF uses growing and dynamic dictionary for compressing data.
Steps:
Pointer get longer one byte from dictionary to dictionary and output are in block of 8 bytes. Each pointer preceded by header of 255 bytes maximum and terminates by bytes of 8 zeros. Pointer stores with LSB(Least Significant Bit) on left. Last block contains of value which is 2^(b+1).
GIF compression is inefficient because GIF is in one dimensional while image is in two dimensional. So, GIF is not used by today’s web browsers.
Explain left factoring with suitable example.
What is Resource management?
What is WAP? Why it is used?
Write a C program to find the GCD of two numbers.
