Image processing device, method for image processing, and image processing program

摘要

[Problem] To provide an image processing device whereby it is possible to efficiently select among line filters and matrix filters which are suited to noise reduction in DEM data. [Solution] An image processing device (1) comprises: an acquisition unit (41) which acquires DEM data which denotes respective digital elevations of latticework areas in a prescribed map region; a selection unit (43) which selects a plurality of line filters which carry out filtering of data which is contiguous in one direction in the map region and/or a plurality of matrix filters which carry out filtering of data which configures a two-dimensional region in the map region; a filter processing unit (46) which carries out, by the filter which is selected by the selection unit (43), a filter process of the DEM data which is acquired by the acquisition unit (41); and an output unit (47) which outputs the DEM data whereupon the filter process is carried out.