jpeg encoder

IM DOING A JPEG ENCODER IN FPGA USING VERILOG AS MY MAIN PROJECT
PLEASE GIVE ME SOME GOOD REFERENCE,,ALGORITHM FOR THIS BLOCK ETC..
WHICH OF THE FOLLOWING JPEG WOULD BE EASY TO CODE IN VERILOG
1)JPEG
2)JPEG-LS
3)JPEG 2000
 MY EMAIL: bibin.paul.c@gmail.com