複雜地形多光譜影像之影像增揚表現提昇研究

The Study for the Promoting Enhancement in Mltispectral Images of the Complicated Topography

10.30153/JCAGST.200803.0002

李翔祖(Hsiang-Tsu Li)；李興緯(Hsing-Wei Lee)

中華印刷科技年報

2008（2008 / 03 / 01）

2 - 11

繁體中文

影像增揚之目的為增加影像中地物間的明顯對比，使肉眼易於辨識影像中較不明顯之目標物，或協助系統分析使之更易於萃取影像中之資訊。在大範圍複雜地形多光譜影像中，如同步採用同一影像增揚模式，將可能會有亮部表現太亮，暗部表現太暗之窘境。本研究欲使用分區局部之影像增揚方式，來提昇影像表現，使之達到利於判識或解釋之狀態。

The purpose of the image enhancement is in order to increase the obvious contrast among the target object in the image. That makes the naked eyes is easy to distinguish the unclear goal point, or help the system analysis to make it easier to extract the information from the image. In the mltispectral images of the large-scaled and complicated topography, if we use the same enhancement mode, there may be have the embarrassed result that is bright parts displayed too bright, or dark parts displayed too dark. This research uses the way of local enhancement to promote the expressing of the image and make it easier to it to reading or explaining.