Deblocking filter | DCT | PSNR

There are total of 3 operations that can be performed.

Compile files:

For DCT:
g++ Dct_operations.cpp FileIO/fileIO.cpp DCT/Dct.cpp -o DctOperations

For JPEG Deblocking:
g++ JPEG_deblocking.cpp Deblocking/deblock.cpp FileIO/fileIO.cpp YUV/yuv.cpp -o JPEG_Deblocking

For PSNR:
g++ PSNR.cpp FileIO/fileIO.cpp -o PSNR

1. DCT operations

   Run the file DctOperations and follow its usage. e.g. Run the file as: DctOperations -i lena.raw -q 60

2. JPEG deblocking

   Run the file JPEG_Deblocking and follow its usage. e.g. Run the file as: JPEG_Deblocking -i pepper.raw -c 1

   CHECK OUTPUT IN MATLAB -Once you get the desired output, you can check the quality of the output images by running the matlab file checkImageBlocking.m. -Enter the desired filenames in this file and you get the compared image output.

3. Calculate MSE and PSNR

   Run the file PSNR and follow its usage. e.g. Run the file as: PSNR -i resources/original.dat -o resources/quantized.dat

IMP:

Refer to the file jpeg.pdf and JPEGCodeReference.rtf for more details.