Bicubic interpolation functions for 2D images. More...
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Functions | |
| template<class T > | |
| double | vil_bicub_interp_unsafe (double x, double y, const T *data, vcl_ptrdiff_t xstep, vcl_ptrdiff_t ystep) |
| Compute bicubic interpolation at (x,y), no bound checks. Requires 1<x<ni-3, 1<y<nj-3. | |
| template<class T > | |
| double | vil_bicub_interp_unsafe (double x, double y, const T *data, int, int, vcl_ptrdiff_t xstep, vcl_ptrdiff_t ystep) |
| Compute bicubic interpolation at (x,y), no bound checks. Requires 1<x<ni-3, 1<y<nj-3. | |
| template<class T > | |
| double | vil_bicub_interp_raw (double x, double y, const T *data, vcl_ptrdiff_t xstep, vcl_ptrdiff_t ystep) |
| Compute bicubic interpolation at (x,y), no bound checks. | |
| template<class T > | |
| double | vil_bicub_interp_raw (double x, double y, const T *data, int, int, vcl_ptrdiff_t xstep, vcl_ptrdiff_t ystep) |
| Compute bicubic interpolation at (x,y), no bound checks. | |
| template<class T > | |
| double | vil_bicub_interp_safe (double x, double y, const T *data, int nx, int ny, vcl_ptrdiff_t xstep, vcl_ptrdiff_t ystep) |
| Compute bicubic interpolation at (x,y), with bound checks. | |
| template<class T > | |
| double | vil_bicub_interp_safe (const vil_image_view< T > &view, double x, double y, unsigned p=0) |
| Compute bicubic interpolation at (x,y), with bound checks. | |
| template<class T > | |
| double | vil_bicub_interp (double x, double y, const T *data, int nx, int ny, vcl_ptrdiff_t xstep, vcl_ptrdiff_t ystep) |
| Compute bicubic interpolation at (x,y), with minimal bound checks. | |
| template<class T > | |
| double | vil_bicub_interp (const vil_image_view< T > &view, double x, double y, unsigned p=0) |
| Compute bicubic interpolation at (x,y), with minimal bound checks. | |
| template<class T > | |
| double | vil_bicub_interp_safe_extend (double x, double y, const T *data, int nx, int ny, vcl_ptrdiff_t xstep, vcl_ptrdiff_t ystep) |
| Compute bicubic interpolation at (x,y), with bound checks. | |
| template<class T > | |
| double | vil_bicub_interp_safe_extend (const vil_image_view< T > &view, double x, double y, unsigned p=0) |
| Compute bicubic interpolation at (x,y), with bound checks. | |
Bicubic interpolation functions for 2D images.
The vil bicub source files were derived from the corresponding vil bilin files, thus the vil bilin/bicub source files are very similar. If you modify something in this file, there is a corresponding bilin file that would likely also benefit from the same change.
Definition in file vil_bicub_interp.h.
| double vil_bicub_interp | ( | double | x, |
| double | y, | ||
| const T * | data, | ||
| int | nx, | ||
| int | ny, | ||
| vcl_ptrdiff_t | xstep, | ||
| vcl_ptrdiff_t | ystep | ||
| ) | [inline] |
Compute bicubic interpolation at (x,y), with minimal bound checks.
Image is nx * ny array of Ts. x,y element is data[ystep*y+xstep*x] If (x,y) is outside interpolatable image region and NDEBUG is not defined the code will fail an ASSERT. The safe interpolatable region is [1,nx-2]*[1,ny-2].
Definition at line 96 of file vil_bicub_interp.h.
| double vil_bicub_interp | ( | const vil_image_view< T > & | view, |
| double | x, | ||
| double | y, | ||
| unsigned | p = 0 |
||
| ) | [inline] |
Compute bicubic interpolation at (x,y), with minimal bound checks.
If (x,y) is outside interpolatable image region and NDEBUG is not defined the code will fail an ASSERT. The safe interpolatable region is [1,view.ni()-2]*[1,view.nj()-2].
Definition at line 113 of file vil_bicub_interp.h.
| double vil_bicub_interp_raw | ( | double | x, |
| double | y, | ||
| const T * | data, | ||
| vcl_ptrdiff_t | xstep, | ||
| vcl_ptrdiff_t | ystep | ||
| ) |
Compute bicubic interpolation at (x,y), no bound checks.
Image is nx * ny array of Ts. x,y element is data[xstep*x+ystep*y] No bound checks are done.
Definition at line 73 of file vil_bicub_interp.txx.
| double vil_bicub_interp_raw | ( | double | x, |
| double | y, | ||
| const T * | data, | ||
| int | , | ||
| int | , | ||
| vcl_ptrdiff_t | xstep, | ||
| vcl_ptrdiff_t | ystep | ||
| ) | [inline] |
Compute bicubic interpolation at (x,y), no bound checks.
Image is nx * ny array of Ts. x,y element is data[xstep*x+ystep*y] No bound checks are done. This is a version of vil_bicub_interp_raw with the same function signature as vil_bicub_interp_safe.
Definition at line 54 of file vil_bicub_interp.h.
| double vil_bicub_interp_safe | ( | double | x, |
| double | y, | ||
| const T * | data, | ||
| int | nx, | ||
| int | ny, | ||
| vcl_ptrdiff_t | xstep, | ||
| vcl_ptrdiff_t | ystep | ||
| ) | [inline] |
Compute bicubic interpolation at (x,y), with bound checks.
Image is nx * ny array of Ts. x,y element is data[xstep*x+ystep*y] If (x,y) is outside interpolatable image region, zero is returned. The safe interpolatable region is [1,nx-2]*[1,ny-2].
Definition at line 66 of file vil_bicub_interp.h.
| double vil_bicub_interp_safe | ( | const vil_image_view< T > & | view, |
| double | x, | ||
| double | y, | ||
| unsigned | p = 0 |
||
| ) | [inline] |
Compute bicubic interpolation at (x,y), with bound checks.
If (x,y) is outside interpolatable image region, zero is returned. The safe interpolatable region is [1,view.ni()-2]*[1,view.nj()-2].
Definition at line 82 of file vil_bicub_interp.h.
| double vil_bicub_interp_safe_extend | ( | double | x, |
| double | y, | ||
| const T * | data, | ||
| int | nx, | ||
| int | ny, | ||
| vcl_ptrdiff_t | xstep, | ||
| vcl_ptrdiff_t | ystep | ||
| ) | [inline] |
Compute bicubic interpolation at (x,y), with bound checks.
Image is nx * ny array of Ts. x,y element is data[nx*y+x] If (x,y) is outside safe interpolatable image region, nearest pixel value is returned. The safe interpolatable region is [1,nx-2]*[1,ny-2].
Definition at line 126 of file vil_bicub_interp.h.
| double vil_bicub_interp_safe_extend | ( | const vil_image_view< T > & | view, |
| double | x, | ||
| double | y, | ||
| unsigned | p = 0 |
||
| ) | [inline] |
Compute bicubic interpolation at (x,y), with bound checks.
If (x,y) is outside safe interpolatable image region, nearest pixel value is returned. The safe interpolatable region is [1,view.ni()-2]*[1,view.nj()-2].
Definition at line 142 of file vil_bicub_interp.h.
| double vil_bicub_interp_unsafe | ( | double | x, |
| double | y, | ||
| const T * | data, | ||
| vcl_ptrdiff_t | xstep, | ||
| vcl_ptrdiff_t | ystep | ||
| ) |
Compute bicubic interpolation at (x,y), no bound checks. Requires 1<x<ni-3, 1<y<nj-3.
Image is nx * ny array of Ts. x,y element is data[xstep*x+ystep*y] No bound checks are done.
Definition at line 28 of file vil_bicub_interp.txx.
| double vil_bicub_interp_unsafe | ( | double | x, |
| double | y, | ||
| const T * | data, | ||
| int | , | ||
| int | , | ||
| vcl_ptrdiff_t | xstep, | ||
| vcl_ptrdiff_t | ystep | ||
| ) | [inline] |
Compute bicubic interpolation at (x,y), no bound checks. Requires 1<x<ni-3, 1<y<nj-3.
Image is nx * ny array of Ts. x,y element is data[xstep*x+ystep*y] No bound checks are done. This is a version of vil_bicub_interp_unsafe with the same function signature as vil_bicub_interp_safe.
Definition at line 31 of file vil_bicub_interp.h.
1.7.5.1