Title: ?????????,??ADC????????
1(No Transcript)
215. ??
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315.1 ?????
415.1.1 ?????
5?????
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- ?????????,????????
- ?????????,??ADC????????
- ?DSP?????????,???????
6?????????????
4. ???????????? ???????????,? ???????
5. ???????????? ?????????
3. ??????? ???????? ???????? ?????,?? ???????? ??
?????
DSP
ADC
1. ????????? ????????,? ???????
2. ???????? ????????, ???????
7???????
- ???????????
- ?????
- ??????
- ADC?DSP?????
- ?????????????
- ????????
8????????????
- Canon IXUS300 HS ??????????????
- S0.3M(640x480)
- M32M(1600x1200)
- M24M(2272x1704)
- M16M(2816x2112)
- L10M(3648x2736)
- ???????(????)????????
- ????(???) ? ????
915.1.2 ???????
10??????
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- ????
- ????????
- ????
- ????,?????
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- ????,??????
- ?????,???????????????
11??????
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- ??????????
????
- ????http//blog.dcview.com
12????????????
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1315.1.3 ???????
14???????
- ??????
- ??????????????
- ?????????????????????????
- ??????????(Red)??(Green)??(Blue)???????
- ?????????256????????
- 256??????Byte??
15???????
16???????
- ???????256316,777,216?(??1677??)
- ????????????????1677??,??256?
- ??????????256??????RGB??
- ?????????Byte??????????
- ??Byte????256???
- ??????Bytes??????????????Byte???????
17???????
18???????
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- ??????????????
- ???????,????????
19?????
20??????????
- ???
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- ???
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- ???????
2115.1.4 ????
22????
- RGB????????
- ?(Red)?(Green)??(Blue)
- ???
- ????????,???????????
- ? ? ?
- ? ? ??
- ? ? ?
- ? ? ? ?
23RGB?CMYK?????
- ????????????
- R G B
- Y(??) Cb(?????) Cr(?????)
- Y(??) U(??) V(??)
- ?????CMYK??
- C ??
- M ???
- Y ??
- K ??
24CMYK??
- ???
- CMYK
- ?CMY?????????????
- ?????????K??????
- ????(?????????)??????CMYK?????????????????????
25RGB?CMYK?????
- ????????
- RGB???????????
- CMYK??????
26 15.1.5 ?????????
27??????????
?????
???? compression
?????????
????? decompression
????
28?????????
- ??
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- ????
- ??????? ? ??????
29????????
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- ??????(loseless compression)
- ??????????????,???????
- ??????????
- ?????BMP?
- ?????(lossy compression)
- ?????????????????
- ???????????????
- ??????????
- ?????JPG?
30BMP
- ??????
- ???????????
- ???Windows???????
- ???????????????
- ???(????????,??????)
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- 16??256???????????RLE????
31GIF
- ?????
- 256????????
- ????????????
- ???(??????)
- ???(?????????)
- ??(???GIF???????????)
- ????????????????
- GIF?????256??????
- ?????????256??16????????????,????GIF?
32GIF??
JPG ??
256?GIF?
33GIF??
16?GIF?
??GIF?
34PNG
- ?????
- ?????GIF??????????,??PNG????????GIF???
- ??????????????
- ??????
- ????
- ?????????
- ??????Alpha Channel
- ?????????
35JPG
- ?????????????
- ????????
- 1MB???,??JPG????????K
- ????????????????
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- ??????????????????
JPG ??,92354 bytes
JPG??50,48496 bytes
36JPG
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- JPG????RGB??????????
JPG ??,92354 bytes
JPG??10,23072 bytes
37TIF
- ???????????
- ?????????????????
- ??
- ???(Windows?UNIX?Mac OS/2????)
- ?????(???LZW?Huffman??)
- ??????????
- ???????????????????TIF??
38TIF
- TIF??
- RGB??
- 256?
- 16?
- ??
- ??
- ????TIF????16-bits???48-bits?????
- ??????8-bits???24-bits??
- TIF???????????????
39TIF
TIF?,4.03MB (1444972)
40TIF v.s. JPG
41TIF v.s. JPG
42UFO
- PhotoImpact?????????
- ??PhotoImpact????????????,???????????
- ?????????????UFO??
43PSD
- Photoshop??????????
- ??Photoshop?,???????,????????????
4415.2 ???????
45????
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46????
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47????
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- BMP????JPG?
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- JPG???????90???25
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- ?????????????,??????????
48????
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49????
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- dpi(dot per inch)
- ????,??????????????
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50????
?? ???? ??
CRT?? 1519? ??????? ???? ????????,?????? ????
LCD???? 17?24? (???) ???,?CRT? ?????CRT??? ?????????????????? ?????
??? ???????? ??????? ????????? ?????????? ??????,???CRT??LCD??? ??????,???????
51????
- ???????
- ???????
- ?????????
- ?????????
- Photoshop
- PhotoImpact
- ACDSee
52????
???? ?? ????
Photoshop Adobe ????????????? ???????? ?????,?????? ??????,??????
53????
???? ?? ????
PhotoImpact ?????? ????? ??????(Corel) ??????????????????? ?????????? ??????,??????? ????,?????????
54????
???? ?? ????
ACDSee ACD Systems ??????????? ???????? ??????? ????
55????
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- ?????JPG?
56????
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