Altera Video and Image Processing Suite User Manual
Page 146
Operands
Coefficient and summands
A0, B0, C0, S0
A1, B1, C1, S1
A2, B2, C2, S2
12 fixed-point values
Each coefficient or summand is represented
by a white cell with a purple cell underneath.
The value in the white cell is the desired
value, and is editable. The value in the purple
cell is the actual value, determined by the
fixed-point type specified. The purple cells
are not editable. You can create a custom
coefficient and summand set by specifying
one fixed-point value for each entry.
You can paste custom coefficients into the
table from a spreadsheet (such as Microsoft
Excel). Blank lines must be left in your input
data for the non-editable cells.
Coefficients: Signed
(9)
On or Off
Turn on to set the fixed point type used to
store the constant coefficients as having a
sign bit.
Coefficients: Integer bits
(9)
0–16,
Default = 10
Specifies the number of integer bits for the
fixed point type used to store the constant
coefficients.
Summands: Signed
(9)
On or Off
Turn on to set the fixed point type used to
store the constant summands as having a sign
bit.
Summands: Integer bits
(9)
0–22,
Default = 10
Specifies the number of integer bits for the
fixed point type used to store the constant
summands.
Coefficient and summand
fractional bits
(9)
0–34, Default = 8
Specify the number of fraction bits for the
fixed point type used to store the coefficients
and summands.
Table 10-2: Color Space Converter II Parameter Settings
Parameter
Value
Description
General
Maximum input frame width
32–4096,
Default = 1920
Specify the maximum width of input images
or video frames in pixels.
(9)
Editing these values change the actual coefficients and summands and the results values on the General
page. Signed coefficients allow negative values; increasing the integer bits increases the magnitude range;
and increasing the fraction bits increases the precision.
10-6
Color Space Conversion Parameter Settings
UG-VIPSUITE
2015.05.04
Altera Corporation
Color Space Conversion IP Cores