This is a C project I completed with my partner, Ethan Oliver, in our Machine Structure and Assembly Programming class.
The project uses bitpacking to compress or decompress an image. Below is the README submitted with the project.
Claire Boals and Ethan Oliver Comp40 hw4: Arith 10/20/18
Help we received: Comp40 TA's, StackOverflow, Noah Mendelsohn
Implementation: We believe that everything has been correctly implemented in our program.
Architecture: Our solution consists of 9 modules. The 40image module handles command line input, and the Compress40 module calls the compression and decompression functions, depending on the user’s choice. Our compression module performs the necessary math (not including quantizations) on the individual pixels to put them into 2x2 blocks, and it interacts with the Quantizer to prepare the information for packing. It interacts with Wordpack to actually put the information into codewords. Decompress is similar. It performs necessary math other than quantizations on the compressed image, and it interacts with Quantizer and Wordpack to unquantize and extract the information from the codewords. Wordpack interacts with Bitpack to take information and call correct Bitpack functions. Quantizer is a module which contains all the necessary math equations needed to quantize the information in compression and decompression of images. Bitpack handles all the bitwise operations needed to create the codewords and is only used by Wordpack. The compressed and decompressed image read/write modules simply handle the interactions between files and images as they are represented in our solution.
How many hours spent: Analyzing - 20 hours Solving - 20 hours