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參數資料
| 型號： | STV0684 |
| 廠商： | 意法半導體 |
| 英文描述： | Digital Camera Processor |
| 中文描述： | 數碼相機處理器 |
| 文件頁數： | 14/49頁 |
| 文件大小： | 487K |
| 代理商： | STV0684 |
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Functional Description
STV0684
14/49
3
Functional Description
3.1
Video processor (VP)
The VP is the result of STMicroelectronics extensive know-how and hard work around the colour
science for CMOS sensor. The VP block fulfills many functions related to colour reconstruction from
a bayer filter, colour matrixing and sharpening, real-time and programmable defect pixel correction,
AGC, AWB, Anti flicker and Gamma correction, scaling from the sensor to the required video and
LCD panel resolution. This new video processor benefits from STMicroelectronics latest algorithms
development such as the patented Noise Reduction Algorithm and anti-vignetting that ensures the
highest quality standard.
The VP combines hardware and firmware. The main block controller is powered by a 8051 E WARP
microcontroller, with RAM based firmware for the highest level of flexibility.
Feature list
System features
●
RAM based firmware
●
Dual video interface for simultaneous ViewFinder and movie capture
●
Bayer or YCbCr input from supported memory
●
48Mpixel/s capable processing pipe
●
Flashgun and shutter support
●
RGB/YUV 4:2:2 output formats
Image reconstruction functions
●
x2, x2.5 Horizontal downscaling
●
Colour Channel Gains and Offsets
●
Anti-vignetting
●
Defect correction
●
NoRA - Active Noise Reduction
●
Demosaic (bayer->rgb conv)
●
YUV matrix (rgb -> YUV)
●
Image crop
●
General purpose RGB downscaler
●
RGB matrix
●
Peaking
●
Gamma correction
Statistics processor
●
4 Accumulators - programmable on the fly
●
Programmable zones
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