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參數(shù)資料
| 型號： | KS7332 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 元件分類： | 通用總線功能 |
| 英文描述： | KS7332 is a digital image signal handling IC aimed at improving image contrast and counter light correction, applicable to CCD-using video camera syst |
| 中文描述： | KS7332是一種數(shù)字圖像信號處理集成電路的目的是改善圖像的對比度和反輕修正，適用于防治荒漠化公約，使用攝像機制度進行 |
| 文件頁數(shù)： | 10/26頁 |
| 文件大?。?/td> | 207K |
| 代理商： | KS7332 |
KS7332
10
SYSTEM OPERATION DESCRIPTION
Sync Signal Generating Block
The sync signal generating block generates horizontal/vertical count data using the sync signal from the Timing
Generator (TG). It also generates SP (Start Point) data using DVC, HIGH, PAL, and AP_ADJ (Start Point
Adjustment) from System MICOM, and FLD (Field) signals using HD, VD, and PAL signals.
Internal vertical counter (VCNT: line counter)
Internal horizontal counter (HCNT: pixel counter)
Internal field signal (FLD)
Internal
horizontal active area sign
al (HACTIVE)
Internal vertical active area signal (VACTIVE)
Preprocessing Block
The preprocessing block uses the CCD's A/D output to carry out digital clamping, black line detection & correction,
and preprocess low pass filtering, then outputs to the histogram generating block.
Digital clamping
Black line detection & correction
Preprocess low pass filtering
Histogram Generating Block
The histogram generating block uses the output from the preprocessing block to generate a probability density
function for the video signal's luminance output and stores it in line memory. A signal for luminance distribution
adjustment is generated and sent to the segmentation block and look-up-table block.
ACTIVE Area Selection
Luminance Signal Separation using LPF
Histogram Accumulation using Line Memory
Histogram Clip feature
Segmentation Block
The segmentation block uses the accumulated histogram from the histogram generating block for the improvement
of dynamic range. back bias impressing conditions are generated and sent to the look-up-table block and the
MICOM I/F module.
Histogram segmentation
Histogram integration
Histogram minimum section probing feature
Gamma control
Back bias adjustment
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