Quick shift - Definition.
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#include "quickshift.h"
#include "mathop.h"
#include <string.h>
#include <math.h>
#include <stdio.h>
Functions |
| vl_qs_type | vl_quickshift_distance (vl_qs_type const *I, int N1, int N2, int K, int i1, int i2, int j1, int j2) |
| | Computes the accumulated channel L2 distance between i,j + the distance between i,j.
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| vl_qs_type | vl_quickshift_inner (vl_qs_type const *I, int N1, int N2, int K, int i1, int i2, int j1, int j2) |
| | Computes the accumulated channel inner product between i,j + the distance between i,j.
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| VlQS * | vl_quickshift_new (vl_qs_type const *image, int height, int width, int channels) |
| | Create a quick shift object.
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| void | vl_quickshift_process (VlQS *q) |
| | Create a quick shift objet.
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| void | vl_quickshift_delete (VlQS *q) |
| | Delete quick shift object.
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Detailed Description
- Author:
- Brian Fulkerson
-
Andrea Vedaldi
Function Documentation
| void vl_quickshift_delete |
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VlQS * |
q | ) |
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| vl_qs_type vl_quickshift_distance |
( |
vl_qs_type const * |
I, |
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int |
N1, |
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int |
N2, |
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int |
K, |
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int |
i1, |
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int |
i2, |
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int |
j1, |
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int |
j2 |
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) |
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inline |
- Parameters:
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| I | input image buffer |
| N1 | size of the first dimension of the image |
| N2 | size of the second dimension of the image |
| K | number of channels |
| i1 | first dimension index of the first pixel to compare |
| i2 | second dimension of the first pixel |
| j1 | index of the second pixel to compare |
| j2 | second dimension of the second pixel |
Takes the L2 distance between the values in I at pixel i and j, accumulating along K channels and adding in the distance between i,j in the image.
- Returns:
- the distance as described above
| vl_qs_type vl_quickshift_inner |
( |
vl_qs_type const * |
I, |
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int |
N1, |
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int |
N2, |
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int |
K, |
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int |
i1, |
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int |
i2, |
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int |
j1, |
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int |
j2 |
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) |
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inline |
- Parameters:
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| I | input image buffer |
| N1 | size of the first dimension of the image |
| N2 | size of the second dimension of the image |
| K | number of channels |
| i1 | first dimension index of the first pixel to compare |
| i2 | second dimension of the first pixel |
| j1 | index of the second pixel to compare |
| j2 | second dimension of the second pixel |
Takes the channel-wise inner product between the values in I at pixel i and j, accumulating along K channels and adding in the inner product between i,j in the image.
- Returns:
- the inner product as described above
| VlQS* vl_quickshift_new |
( |
vl_qs_type const * |
image, |
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int |
height, |
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int |
width, |
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int |
channels |
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) |
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- Parameters:
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| image | the image. |
| height | the height (number of rows) of the image. |
| width | the width (number of columns) of the image. |
| channels | the number of channels of the image. |
- Returns:
- new quick shift object.
The image is an array of vl_qs_type values with three dimensions (respectively widht, height, and channels). Typically, a color (e.g, RGB) image has three channels. The linear index of a pixel is computed with: channels * width* height + row + height * col.
| void vl_quickshift_process |
( |
VlQS * |
q | ) |
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