VISS performs image processing on raw data
and outputs RGB and/or YUV image. Video Imaging Subsystem (VISS) includes following
components:
- Raw Front End (Raw FE) that
implements:
- Wide Dynamic Range (WDR)
merge
- Defect Pixel Correction
(DPC)
- Lens Shading Correction
(LSC)
- Decompounding
- 3A Statistics
- White Balance
- Noise Filter (NSF)
- Bayer domain spatial noise
filter
- Global and Local Brightness Contrast
Enhancement (GLBCE) for adaptive local tone mapping
- Flex Color Processing (FCP),which
supports
- Demosaicing, color
correction, color space conversion and gamma conversion
VISS pipeline can process data at 1 pixel
per cycle. On TDA4VM, VISS system can be clocked at 720 Mhz, which enables 720 Mpixel/s
processing capability.