camisp-088
CP0LPC0
CP0LPC3
CP0LPC2
CP0LPC1
CP1LPC0
CP1LPC3
CP1LPC2
CP1LPC1
CP2LPC0
CP2LPC3
CP2LPC2
CP2LPC1
CP3LPC0
CP3LPC3
CP3LPC2
CP3LPC1
col0
col1
col2l
col3
row0
row1
row2
row3
(a) R, G and B color mosaic filter
CP0LPC0
CP0LPC3
CP0LPC2
CP0LPC1
CP1LPC0
CP1LPC3
CP1LPC2
CP1LPC1
CP2LPC0
CP2LPC3
CP2LPC2
CP2LPC1
CP3LPC0
CP3LPC3
CP3LPC2
CP3LPC1
col 0
col1
col2
col3
row0
row1
row2
row3
(b) Cy, Ye and B color mosaic filter
Public Version
www.ti.com
Camera ISP Basic Programming Model
Figure 6-116. Camera ISP CCDC Mosaic Filter - CCDC_COLPTN Bit Field Settings
6.5.6.6.2 Camera ISP CCDC Image-Signal Processing
6.5.6.6.2.1 Camera ISP CCDC Digital Clamp
Digital clamp is enabled only if optical black clamping is disabled:
[31] CLAMPEN = 0. The
digital clamp DC value to be subtracted from the raw image data (
[13:12] INPMOD =
0) or from the luminance (
[13:12] INPMOD = 0 or
[0] R656ON = 1)
is set with the
register. The DC value can range from 0 to 212-1. The reset value is 0.
6.5.6.6.2.2 Camera ISP CCDC Optical Black Clamping
Optical black clamping is enabled by setting
[31] CLAMPEN to 1. When enabled, an
average of black-pixel samples is computed over a window. If the height of the window is 2N, the average
value multiplied by a programmable gain factor is subtracted from the raw image data for the following 2N
lines. Every 2N lines, a new average value is computed. For the first 2N lines, 0 is subtracted.
The size of the window and horizontal position are controlled by the
register. The vertical
position of the window is set to line 0 and cannot be modified:
•
[30:28] OBSLEN sets the horizontal size of the window (1, 2, 4 or 8 pixels).
•
[27:25] OBSLN sets the vertical size of the window (2N = 1, 2, 4 or 8 lines).
•
[24:10] OBST sets the horizontal start position of the upper-left corner of the window. It
is specified from the start of the HS sync pulse in pixel clocks.
The gain factor is set by the
[4:0] OBGAIN bit field. Its fixed-point representation is U5Q4;
the range is 0 to 1.9375. The gain factor reset value is 1.
If optical-black clamping is disabled, digital clamp is enabled.
6.5.6.6.2.3 Camera ISP CCDC Black Compensation
Black compensation applies an offset to the raw image data. The offset is applied according to the phase
and color for each phase. The black compensation offsets are controlled by the
register.
All offsets are coded in S8Q0 representation (two's complement); the range is -128 to +127.
1273
SWPU177N – December 2009 – Revised November 2010
Camera Image Signal Processor
Copyright © 2009–2010, Texas Instruments Incorporated
Содержание OMAP36 Series
Страница 174: ...174 List of Tables SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 692: ...692 MPU Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1084: ...1084 IVA2 2 Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1990: ...1990 2D 3D Graphics Accelerator SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2334: ...2334 Memory Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2700: ...2700 Memory Management Units SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2868: ...2868 HDQ 1 Wire SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2974: ...2974 UART IrDA CIR SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3054: ...3054 Multichannel SPI SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3462: ...3462 MMC SD SDIO Card Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3508: ...3508 General Purpose Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3584: ...3584 Initialization SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3648: ...3648 Debug and Emulation SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...