write VHDL code for Block schematic

hi!

I HAVE A cmos JK 807A CAMERA:

number of pixel: 628(h)x582(v)<PAL>,

Resolution:380 lines.

scaning frequency:50 Hz

min.lllumination: 0.2~3 Lux

S/N ratio : 40db

white balance : Auto

video output 1.0 Vpp composite 75ohm

power supply:Dc 9v.

my project is "Real time video capture and image processing using fpga".

i plan for edge detection of the input video or brightness control of

the video.i make a block schematic for my work.can u write vhdl code for the block schematic.also tell me is it possible with that camera or not.Can You help me!!!!!