hi, all.
we are try to change the parameters for YCbCr to RGB converter by writting DRGBX0 - 4.
figure 98 in sprufg9c said we can change the coefficients of the matrix.
we did so but we got a problem.
we about to change the R output because we found the red color is deeper then we can see in osd then the orig one in PC.
here is the formula:
R = 1/1024 * ( GY * (Y - 16) + 0 + RV * (Cr - 128))
after write DRGBX1 to 0x7ff, R is still deeper then the orig one.
but writting GY, say DRGBX0, makes no effect with R.
we wander how to change it.
any ideas ?
Regards, Mike