Fawkes API
Fawkes Development Version
|
Laplacian filter. More...
#include <>>
Public Member Functions | |
FilterLaplace () | |
Constructor. More... | |
FilterLaplace (float sigma, unsigned int size, float scale) | |
Constructor. More... | |
~FilterLaplace () | |
Destructor. More... | |
virtual void | apply () |
Apply the filter. More... | |
![]() | |
Filter (const char *name, unsigned int max_num_buffers=1) | |
Constructor. More... | |
virtual | ~Filter () |
Destructor. More... | |
virtual void | set_src_buffer (unsigned char *buf, ROI *roi, orientation_t ori=ORI_HORIZONTAL, unsigned int buffer_num=0) |
Set source buffer with orientation. More... | |
virtual void | set_src_buffer (unsigned char *buf, ROI *roi, unsigned int buffer_num) |
Set source buffer. More... | |
virtual void | set_dst_buffer (unsigned char *buf, ROI *roi) |
Set the destination buffer. More... | |
virtual void | set_orientation (orientation_t ori, unsigned int buffer_num) |
Set the orientation to apply the filter in. More... | |
virtual const char * | name () |
Get filter name. More... | |
void | shrink_region (ROI *r, unsigned int n) |
This shrinks the regions as needed for a N x N matrix. More... | |
Static Public Member Functions | |
static void | calculate_kernel (int *kernel_buffer, float sigma, unsigned int size, float scale) |
Calculate a Laplacian of Gaussian kernel. More... | |
Additional Inherited Members | |
![]() | |
unsigned int | _max_num_buffers |
Maximum number of buffers. More... | |
char * | _name |
Filter name. More... | |
unsigned char ** | src |
Source buffers, dynamically allocated by Filter ctor. More... | |
unsigned char * | dst |
Destination buffer. More... | |
ROI ** | src_roi |
Source ROIs, dynamically allocated by Filter ctor. More... | |
ROI * | dst_roi |
Destination ROI. More... | |
orientation_t * | ori |
Orientations, one for each source image. More... | |
firevision::FilterLaplace::FilterLaplace | ( | ) |
Constructor.
Definition at line 53 of file laplace.cpp.
firevision::FilterLaplace::FilterLaplace | ( | float | sigma, |
unsigned int | size, | ||
float | scale | ||
) |
Constructor.
sigma | sigma for Laplacian |
size | size of kernel |
scale | scale factor |
Definition at line 66 of file laplace.cpp.
References calculate_kernel().
firevision::FilterLaplace::~FilterLaplace | ( | ) |
Destructor.
Definition at line 82 of file laplace.cpp.
|
virtual |
Apply the filter.
Apply the filter to the given source and destination buffers with given width and height and orientation (ori may be ignored for some filters).
Implements firevision::Filter.
Definition at line 94 of file laplace.cpp.
References firevision::Filter::dst, firevision::Filter::dst_roi, firevision::ROI::height, firevision::ROI::line_step, firevision::ROI::pixel_step, firevision::Filter::src, firevision::Filter::src_roi, firevision::ROI::start, firevision::ROI::width, fawkes::upoint_t::x, and fawkes::upoint_t::y.
|
static |
Calculate a Laplacian of Gaussian kernel.
The kernel is calculated with the formula
kernel | buffer contains kernel upon return |
sigma | sigma for formula |
size | kernel is of quadratic size ![]() |
scale | scale parameter in formula |
Definition at line 193 of file laplace.cpp.
Referenced by FilterLaplace().