evaluation method of topographic normalization models Method AND Apparatus for topographic correction of normalized vegetation index map BY USING the SAME

摘要

The method of evaluating the result of applying the terrain normalization model to the satellite image is to calculate the rate of change before and after the terrain normalization model is applied to the reflectance data on the first slope facing the sun and on the second slope facing the sun. A structure of a histogram of each of first reflectance data of the first slope and second reflectance data of the second slope before the terrain normalization model is applied, and third reflectivity data of the first slope after the terrain normalization and the second slope of the second slope A similarity rate between the histogram structures of each of the fourth reflectivity data may be calculated, and an index for evaluating histogram structure similarity before and after applying the terrain normalization model may be calculated based on the change rate and the similarity rate.