Bt860/861
3.0 Digital Processing and Functionality
3.2 Effects
Multiport YCrCb to NTSC/PAL /SECAM
3.2.7.3 Contrast Adjust
Register M_Y (22[7:0]) controls contrast adjustment. This modifies the
luminance multiplier, allowing a larger or smaller luminance range.
3.2.7.4 Saturation
Adjust
Registers M_CB (21[7:0]) and M_CR (20[7:0]) control saturation adjustments.
These registers are the chrominance component (Cb and Cr) multipliers. To
maintain the correct Cb/Cr relationship, these registers should be modified
synchronously.
3.2.7.5 Sharpness
Adjust
Register field PKFIL_SEL (1B[4:3]) and register bit FIL_SEL (3C[2]) control
sharpness filters. When FIL_SEL = 0, peaking filters of 0 dB, 1 dB, 2 dB and 3.5
dB gains are selected by register field PKFIL_SEL. When FIL_SEL = 1, four
reduction filters are selected by register field PKFIL_SEL. Figures 3-6 and 3-7
illustrates these filter options.
D860DSA
Conexant
3-21
CONEXANT [ CONEXANT SYSTEMS, INC ]
