Hue adjustment is done on YCrCb data stream;
It can be done in CP-core by:
Enabling video adjustmnets (VID_ADJ_EN, CP-core, 0x3E[7] in ADV7611/2/9)
Setting hue to desired value (CP_HUE, CP-core, 0x3D[7:0] in ADV7611/2/9)
Cb_out = Cb*cos(hue) + Cr*sin(hue)
Cr_out = Cr*cos(hue) - Cb*sin(hue)
I'm attaching example spreadsheet with rotation calculated from measured video
stream. 8-bit YCrCb 444 stream used with EVAL-ADV7611EB1Z.
This FAQ was generated from the following discussion: Adjusting Hue in Video decoders and HDMI receivers