Image-Format-Conversion

Source format: 24-bit BMP Destination format: Uncompressed GIF

Limitations:

1. Converts only those images whose number of distinct colours doesn't exceed 128.
2. Converts only those images whose width is a multiple of 4.

There are three important .c files here:

1. bmp.c :- This file reads in the essential details of a bmp image, including the pixels' colour data.

2. gif.c :- This file stores the pixels' colors into a global colour table, which is then used for writing colour data of pixels into a GIF file. It also writes in essential details required for defining the GIF file.

3. main.c :- This file calls functions new_BMP and new_GIF.

Other files are:

1. format.h is the header file containing the structs of BMP and GIF, function prototypes and includes some standard .h files .
2. makefile is for code compilation.

Commands for running the file:

1. $ make my_project :- For making the OUT file
2. $ ./my_project "source_image_name".bmp "output_image_name".gif :- For getting the image output
3. $ make clean :- For removing the .o files

CODE INSPIRED BY:

1. https://en.wikipedia.org/wiki/GIF#Uncompressed_GIF
2. https://elcharolin.wordpress.com/2018/11/28/read-and-write-bmp-files-in-c-c/
3. http://giflib.sourceforge.net/whatsinagif/bits_and_bytes.html