數位影像是應用電腦處理影像的一種學問與技術。
在電腦螢幕上看到的圖片及影像，都是數位影像。

Digital image is a knowlege and technology dealing with digitalized computer images.
The pictures and images on computer screens are all digital images.

常用的數位影像處理軟體：
Digital image processing softwares often used:

PhotoStyler
Photoshop
ProImage
PhotoEnhancer
Photoplus
LView
GWS - Graphic WorkShop: gwsw95.exe 1852K (1896448 bytes)  Mar 28 21:27

Matlab 4.2

etc.



藉由數位影像處理軟體，可調整影像亮度、對比、色調等等，
反白，放大，縮小，濾波，可增加清晰度，柔焦效果，變形，
以及其他多種影像處理效果。

With digital image processing softwares, images can be easily processed.
Contrast enhancement, color tone, negative, enlargement, minifying,
filtering, clarifying, blurring, deforming, and many other effects are
easily achieved.