ikmeans_elkan.tc File Reference
Detailed Description
For internal use only.
Definition in file ikmeans_elkan.tc.
Go to the source code of this file.
Functions | |
static unsigned int | isqrt (unsigned long val) |
static void | vl_ikm_elkan_update_inter_dist (VlIKMFilt *f) |
static void | vl_ikm_init_elkan (VlIKMFilt *f) |
Helper function to initialize filter for Triangle algorithm. | |
static int | vl_ikm_train_elkan (VlIKMFilt *f, vl_uint8 const *data, int N) |
Elkan algorithm. | |
static void | vl_ikm_push_elkan (VlIKMFilt *f, vl_uint *asgn, vl_uint8 const *data, int N) |
Elkan algorithm. |
Function Documentation
static unsigned int isqrt | ( | unsigned long | val | ) | [static] |
For internal use only.
Square root of an integer value
Definition at line 21 of file ikmeans_elkan.tc.
Referenced by vl_ikm_train_elkan().
static void vl_ikm_elkan_update_inter_dist | ( | VlIKMFilt * | f | ) | [static] |
For internal use only.
Update inter cluster distance table.
Definition at line 39 of file ikmeans_elkan.tc.
References _VlIKMFilt::centers, and _VlIKMFilt::inter_dist.
Referenced by vl_ikm_init_elkan(), and vl_ikm_train_elkan().
static void vl_ikm_init_elkan | ( | VlIKMFilt * | f | ) | [static] |
For internal use only.
- Parameters:
-
f filter.
Definition at line 68 of file ikmeans_elkan.tc.
References _VlIKMFilt::K, vl_free(), vl_ikm_elkan_update_inter_dist(), vl_ikm_init_elkan(), and vl_malloc().
Referenced by vl_ikm_init_elkan().
static void vl_ikm_push_elkan | ( | VlIKMFilt * | f, | |
vl_uint * | asgn, | |||
vl_uint8 const * | data, | |||
int | N | |||
) | [static] |
For internal use only.
- Parameters:
-
f IKM quantizer. asgn Assignment of data to centers (out). data Data to quantize. N Number of data elements.
Definition at line 345 of file ikmeans_elkan.tc.
References _VlIKMFilt::centers, VL_BIG_INT, and vl_ikm_push_elkan().
Referenced by vl_ikm_push_elkan().
For internal use only.
- Parameters:
-
f IKM quantizer. data Data to quantize. N Number of data elements.
Definition at line 86 of file ikmeans_elkan.tc.
References _VlIKMFilt::centers, isqrt(), _VlIKMFilt::max_niters, VL_BIG_INT, vl_free(), vl_ikm_elkan_update_inter_dist(), vl_ikm_train_elkan(), vl_malloc(), and VL_PRINTF.
Referenced by vl_ikm_train_elkan().