steps to compress image

i got steps like get image» resize to 512*512 » divide into 8*8 blocks » apply dct » apply quantization » run length encoding » run length decoding » dequantization » inverse dct » combine blocks is this correct??

Answer 1

[Joseph Cheng]

As you are using the dct I'm assuming you attempting a jpeg compression? It has been a while since I did jpeg compression and decompression however this http://www.impulseadventure.com/photo/jpeg-compression.html does a great job at explaining the process.