Altera Video and Image Processing Suite User Manual
Page 217
Address
Register
Description
2 to 2
N
+1
where N is the
number of bits
per color
plane.
Gamma Look-Up Table
These registers contain a look-up table that is used to apply
gamma correction to video data. An input intensity value of x
is gamma corrected by replacing it with the contents of the (x
+1)th entry in the look-up table. Changing the values of these
registers has an immediate effect on the behavior of the IP
core. To ensure that gamma look-up values do not change
during processing of a video frame, use the
Go
bit in Interface
0 to stop the IP core while the table is changed.
Table 15-5: Gamma Corrector Control Register Map for Interface 2
Address
Register
Description
0
Unused
This register is not used.
1
Unused
This register is not used.
2 to 2
N
+1
where N is the
number of bits
per color
plane.
Gamma Look-Up Table
These registers contain a look-up table that is used to apply
gamma correction to video data. An input intensity value of x
is gamma corrected by replacing it with the contents of the (x
+1)th entry in the look-up table. Changing the values of these
registers has an immediate effect on the behavior of the IP
core. To ensure that gamma look-up values do not change
during processing of a video frame, use the
Go
bit in Interface
0 to stop the IP core while the table is changed.
15-4
Gamma Corrector Control Registers
UG-VIPSUITE
2015.05.04
Altera Corporation
Gamma Corrector IP Core