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[1]HU Yun-hua,HE Xiu-bin,BI Jing-zhi.Assessment on the Accuracy of the Histogram Matching Algorithm for Slope Correction[J].Research of Soil and Water Conservation,2013,20(06):97-101.

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Assessment on the Accuracy of the Histogram Matching Algorithm for Slope Correction

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 06 Page number: 97-101 Column: Public date: 2013-12-28

Title:: Assessment on the Accuracy of the Histogram Matching Algorithm for Slope Correction

Author(s):: HU Yun-hua^1,2, HE Xiu-bin¹, BI Jing-zhi³; 1. Institute of Mountain Hazards & Environment, Chinese Academy of Sciences, Chengdu 610041, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. China University of Geosciences(Beijing), Beijing 100083, China

Keywords:: correction slope; accuracy assessment; histogram matching; DEM

CLC:: P282

DOI:: -

Abstract:: In order to reduce the effect of slope reduction which was caused by the reduction of DEM resolution and to validate the accuracy of the histogram matching in spatial domain, a small watershed called Beiyanzikou was selected in the hilly areas of Shandong. The histogram matching methed was used to match the two images and evaluate the accuracy in both spatial and frequency domains in this area. The results showed that the algorithm can significantly recover the maximum and average value of the slope, but the mean square error and relative standard error were 23.5° and 49.85°, respectively; It is almost the same as the unchanged image, so the method just changed the statistical feature of the image. The topography recovery ability of the method needed to be further improved.

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