I protoyped a new monochrome camera design using a xilinx eval board, aptina sensor and adv7393 eval board. However, the image does not seem to very much range between light and dark pixels. I decide to put the adv7393 in black bar test pattern mode in NTSC mode. As you can see in the picture the output does not match a true ntsc black bar test pattern. There is very little gradiation between lightest to darkest pixel.
Has anyone gotten the black ar test pattern to work on the ADV7393?