JPEG Compression Implementation

[meher81]

I have designed a comparator and want to use it for implementing a JPEG compressor. Can anyone help me?
On the other hand, I want to know Whether the comparator is used to implement compressor?

 

[hartejpal]

What kind of a comparator is it?
It may be useful in the Huffman Coding part.

But there are other more important components like the DCT/ IDCT module, Quantizer, zig-zag scanner and finally the Huffman Coder.