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參數(shù)資料
| 型號(hào)： | KS7314 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | Digital Zoom(數(shù)字圖像放大) |
| 中文描述： | 數(shù)碼變焦（數(shù)字圖像放大） |
| 文件頁數(shù)： | 14/28頁 |
| 文件大小： | 186K |
| 代理商： | KS7314 |
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KS7314
DIGITAL ZOOM
3. EIS / System micom interface
Table 1. EIS micom interface
Table 2. SYSTEM MICOM INTERFACE
Tables 1 and 2 summarize the interfacing data formats of the EIS micom (Gyro micom) and the system
micom respectively. In the EIS micom interfacing of Table 1, the data for horizontal hand tremble is
supplied to KS7314. The default line skip level and vertical hand tremble level are not computed by EIS
micom, but the line skip is determined finally by KS7213 after the operation of vertical hand tremble level
data entries taken in the form of 2
,
s complement. The vertical sub-pixel hand tremble level data are,
however, converted to positive value before they are entered. In the system micom interfacing of Table 2,
the start point data of horizontal/vertical electronic zooming are computed by the following formulae and
then transmitted to KS7314 and KS7213.
Electronic zoom start point = Width(or Height) * (1-(1/Zoom Ratio))/2
= Width(or Height) * (Elec. Zoom Step)/(2*256)
where width or height represent the value of effective pixels of CCD and in case the high density CCD and
FCM of the EIS application are used, they then represent effective line output of high density CCD and
effective pixel number respectively. The figure 256 standing in above formulae explains that each of pixel
is devided in 256 parts for the electronic zooming. The electronic zoom ratio data are generated in the
form of electronic zoom step for the horizontal element and electronic zoom ratio inverse for the vertical
element.
EIS MICOM
INTERFACE
TO
Remarks
Level of horizontal
INTEGER
Digital Zoom (KS7314)
2
′
s Complement
hand whole
SUB-PIXEL OFFSET
Digital Zoom (KS7314)
2
′
s Complement
Level of vertical
INTEGER
TGM (KS7213)
2
′
s Complement
hand whole
SUB-PIXEL
TGM (KS7213)
2
′
s Complement
SUB-PIXEL OFSET
Digital Zoom (KS7314)
Positive only
SYSTEM MICOM
INTERFACE
TO
Remarks
Horizontal zoom
INTEGER
Digital Zoom (KS7314)
LINEMEMORY READ
ADDRESS to decide
Start Point
SUB-PIXEL OFFSET
Digital Zoom (KS7314)
Entered into horizontal
interpolation coefficient part
Horizontal electronic
zoom
Digital Zoom (KS7314)
Entered into horizontal
interpolation coefficient part
INTEGER
TGM (KS7213)
CCD LINE SKIP to decide
Vertical zoom
Start Point
SUB-PIXEL OFFSET
TGM (KS7213)
Digital ZOOM(KS7314)
Entered into vertical
interpolation coefficient part
Vertical electronic
zoom RATIO INVERSE
TGM (KS7213)
Digital Zoom(KS7314)
Generate line hold signal
Vertical coefficient part
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