Need help with generating video patterns using VHDL

Since a "color vector" is defined by a single point and the origin in the digital video analyzer for a single color, is this the multiple vectors for a sweep?

I'm guessing here, but your color may be skewed on composite sweeps due to incorrect (absent?) gamma correction. Does your analyzer expect a certain gamma?

This is the vector diagram for 75% colorbars.

Can you explain more about composite sweeps?

Thank you,

Methi

What I meant in my original message was that if you have a color gradient from dark to light in one color with multiple components, the translation of those components to and from YUV space (for your vector diagram) could result in a set of color vectors that "curve" from the center to the outside by not tracking the U and V channels proportionally. If you're dealing with a solid color bar, any "curving" you see of the vectors on the analyzer should be a byproduct of the analyzer (going from off to on and back in a pixel's width). If your color is 100% U or V, increasing or decreasing the Y should give you a straight vector. If your color is a combination of U and V, the curving as Y is increased or decreased would be because U and V aren't properly proportional.

Hi John, My color is 75%.... And it is a combination of U and V.... I am working on trying to match these two values.....for every transition from one color to the other... On doing so, using the approximate values, I can see that the vectors have straightened abit. But this seems to take a whole lot of iterations to finally set it straight....