00001 // This is core/vil/vil_resample_nearest.h 00002 #ifndef vil_resample_nearest_h_ 00003 #define vil_resample_nearest_h_ 00004 //: 00005 // \file 00006 // \brief Sample image with nearest neighbour interpolation in one image and place in another 00007 // \author dac 00008 // 00009 // The vil nearest neighbour source files were derived from the corresponding 00010 // vil bilin files, thus the vil bilin/bicub/nearest source files are very 00011 // similar. If you modify something in this file, there is a 00012 // corresponding bicub/bilin file that would likely also benefit from 00013 // the same change. 00014 00015 #include <vil/vil_image_view.h> 00016 00017 //: Sample grid of points in one image and place in another, using nearest neighbour interpolation. 00018 // dest_image(i,j,p) is sampled from the src_image at 00019 // (x0+i.dx1+j.dx2,y0+i.dy1+j.dy2), where i=[0..n1-1], j=[0..n2-1] 00020 // dest_image resized to (n1,n2,src_image.nplanes()) 00021 // Points outside image return zero. 00022 // \relatesalso vil_image_view 00023 template <class sType, class dType> 00024 void vil_resample_nearest(const vil_image_view<sType>& src_image, 00025 vil_image_view<dType>& dest_image, 00026 double x0, double y0, double dx1, double dy1, 00027 double dx2, double dy2, int n1, int n2); 00028 00029 //: Resample image to a specified width (n1) and height (n2) 00030 // \relatesalso vil_image_view 00031 template <class sType, class dType> 00032 void vil_resample_nearest(const vil_image_view<sType>& src_image, 00033 vil_image_view<dType>& dest_image, 00034 int n1, int n2); 00035 00036 //: Sample grid of points in one image and place in another, using nearest neighbour interpolation. 00037 // dest_image(i,j,p) is sampled from the src_image at 00038 // (x0+i.dx1+j.dx2,y0+i.dy1+j.dy2), where i=[0..n1-1], j=[0..n2-1] 00039 // dest_image resized to (n1,n2,src_image.nplanes()) 00040 // Points outside image return the value of the nearest valid pixel. 00041 // \relatesalso vil_image_view 00042 template <class sType, class dType> 00043 void vil_resample_nearest_edge_extend(const vil_image_view<sType>& src_image, 00044 vil_image_view<dType>& dest_image, 00045 double x0, double y0, double dx1, double dy1, 00046 double dx2, double dy2, int n1, int n2); 00047 00048 //: Resample image to a specified width (n1) and height (n2) 00049 // \relatesalso vil_image_view 00050 template <class sType, class dType> 00051 void vil_resample_nearest_edge_extend(const vil_image_view<sType>& src_image, 00052 vil_image_view<dType>& dest_image, 00053 int n1, int n2); 00054 00055 #endif // vil_resample_nearest_h_
1.7.5.1