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The project is a codec based on JPEG Image compression algorithm
Seperate notebooks for compression and decompression are provided.
The compression algorithm outputs a bin file (ci.bin in this case) which is the compressed version of the image file whose path needs to be given in the input
The decompression algorithms taken the bin file (ci.bin in this case) and results in an image that is reconstructed version of the previous image.
3 Standatd quantization matrices are already pred-defined in the code ant quantizations actor needs to be given as input
For encoding Huffmand Encoding scheme is implemented
The algorithms perform majorly the following steps
DCT of 8x8 individual blocks
Quantization
Encoding
Storage in binary file
Where to look
The master branch consists of MATAB version of the project with several bugs pertaining to high errors in decompressed image
The image-compression-python branch consists of python code that is more accurate and reliable. That's what you are looking for
Future objective
The python code is sequential which make the processing cubersome for large images. Work is being done to make the code distributive and parallelize the algorithm.