Photoshop ??????

1
??????

• 1.????????????
• 2.?????????

2
????????????

• Photoshop ??????
• Corldraw ????????
• Illustrator ??????
• Pagemaker ?????????
• Painter ??????
• Freehand ??????
• Photoimpact ??????
• 
  
• 
  ??

3
?????????

• ???????????
• JPEG ?GIF ?BMP ?PSD ?CDR ?AI
• WMF ?PNG ?TGA ?EPS ?PICT
• BMP ? GIF ?PNG? ?JPEG???

4
BMP(Bitmap??)

• Windows???????????????????Windows???????
• ????????????,???????
• ?????????? (??????????Internet )
• 
  GIF
  

5
GIF (Graphic Interchange Format??????)

• GIF?Internet???????????????????? .
• GIF??????????????????????????

6
???? JPEG

• ???????????????????????,?????????????????
• ??
• ?120k ?PSD?? ????????????????????????8???

?????? 8? 7? 6? 5? 4? 3? 2? 1?
????? 256? 128? 64? 32? 16? 8? 4? 2?
GIF????? 37k 28k 24k 21k 16k 13k 9k 7k
7
JPEG Joint Photographic Experts Group(???????)

• ??24???????
• JPG????????????????,?????,????????
• 
  PNG

8
PNG (Portable Network Graphic Format) ????????

• ?????????
• ???GIF?JPEG???,??????????? ?????????????
• PNG?????????????
• 
  ??

9
??

• 1.???????????????
• 2.????????????(BMP,GIF,JPEG,PNG)