Altera Video and Image Processing Suite User Manual
Page 145
Parameter
Value
Description
General
Remove fraction bits by
• Round values - Half
up
• Round values - Half
even
• Truncate values to
integer
Select the method of discarding fraction bits
resulting from the calculation.
Convert from signed to unsigned
by
• Saturating to
minimum value at
stage 4
• Replacing negative
with absolute value
Select the method of signed to unsigned
conversion for the results.
Operands
Color model conversion
• Computer B’G’R’
to CbCrY’: SDTV
• CbCrY’: SDTV to
Computer B’G’R’
• Computer B’G’R’ to
CbCrY’: HDTV
• CbCrY’: HDTV to
Computer B’G’R’
• Studio B’G’R’ to
CbCrY’: SDTV
• CbCrY’: SDTV to
Studio B’G’R’
• Studio B’G’R’ to
CbCrY’: HDTV
• CbCrY’: HDTV to
Studio B’G’R’
• IQY' to Computer
B'G'R'
• Computer B'G'R' to
IQY'
• UVY' to Computer
B'G'R'
• Computer B'G'R' to
UVY',
• Custom
Specify a predefined set of coefficients and
summands to use for color model conversion
at compile time. Alternatively, you can select
Custom and create your own custom set by
modifying the
din_0
,
din_1
, and
din_2
coefficients for
dout_0
,
dout_1
, and
dout_2
separately.
The values are assigned in the order indicated
by the conversion name. For example, if you
select Computer B’G’R’ to CbCrY’: SDTV,
then
din_0
= B’,
din_1
= G’,
din_2
= R’,
dout_0
= Cb,
dout_1
= Cr, and
dout_2
= Y’.
Note: Editing the coefficient values
automatically changes the color
model conversion value to custom.
Run-time control
32–4096,
Default = 1920
Turn on to enable run-time control of the
conversion values.
UG-VIPSUITE
2015.05.04
Color Space Conversion Parameter Settings
10-5
Color Space Conversion IP Cores
Altera Corporation