LIN Zongjian, REN Chaofeng, YAO Na, XIE Feifei. A Shadow Compensation Method for Aerial Image[J]. Geomatics and Information Science of Wuhan University, 2013, 38(4): 431-435.
Citation: LIN Zongjian, REN Chaofeng, YAO Na, XIE Feifei. A Shadow Compensation Method for Aerial Image[J]. Geomatics and Information Science of Wuhan University, 2013, 38(4): 431-435.

A Shadow Compensation Method for Aerial Image

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  • Received Date: March 15, 2013
  • Revised Date: April 04, 2013
  • Published Date: April 04, 2013
  • A shadow compensation method for aerial images is proposed. First, an image segmentation method is applied and the threshold value is calculated to help predict a shadow region. Then the ratio of direct light to ambient light pertaining to the shadow region is calculated. In the meantime, the multi-band blending method is adopted to realize a smooth transition from shadow region to non-shadow region. Finally, the shadow compensation is finished according to a certain illumination model. The experiments show that the proposed method can not only effectively compensate the shadow regions, but ensure a smooth transition from shadow to non-shadow regions.
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