dct_coeffs_ Struct Reference

FFTW plans and coefficients for DCT-based Gaussian convolution. More...

#include <gaussian_conv_dct.h>

Public Types
enum	{ DCT_GAUSSIAN_1D, DCT_GAUSSIAN_IMAGE }

Public Member Functions
	FFT (plan) forward_plan
	FFT (plan) inverse_plan

Data Fields
num *	dest
const num *	src
enum dct_coeffs_:: { ... }	conv_type
union {
struct {
num   alpha
long   N
long   stride
}   one
struct {
num   alpha_x
num   alpha_y
int   width
int   height
int   num_channels
}   image
}	dims

Detailed Description

FFTW plans and coefficients for DCT-based Gaussian convolution.

Definition at line 68 of file gaussian_conv_dct.h.

Member Function Documentation

dct_coeffs_::FFT

(

plan

)

forward DCT plan

dct_coeffs_::FFT

(

plan

)

inverse DCT plan

Field Documentation

num dct_coeffs_::alpha

exponent coefficient

Definition at line 84 of file gaussian_conv_dct.h.

num dct_coeffs_::alpha_x

exponent coefficient

Definition at line 90 of file gaussian_conv_dct.h.

num dct_coeffs_::alpha_y

exponent coefficient

Definition at line 91 of file gaussian_conv_dct.h.

enum { ... } dct_coeffs_::conv_type

flag to switch between 1D vs. 2D

num* dct_coeffs_::dest

destination array

Definition at line 72 of file gaussian_conv_dct.h.

int dct_coeffs_::height

image height

Definition at line 93 of file gaussian_conv_dct.h.

struct { ... } dct_coeffs_::image

2D convolution parameters

long dct_coeffs_::N

signal length

Definition at line 85 of file gaussian_conv_dct.h.

int dct_coeffs_::num_channels

number of image channels

Definition at line 94 of file gaussian_conv_dct.h.

struct { ... } dct_coeffs_::one

1D convolution parameters

const num* dct_coeffs_::src

source array

Definition at line 73 of file gaussian_conv_dct.h.

long dct_coeffs_::stride

stride between successive samples

Definition at line 86 of file gaussian_conv_dct.h.

int dct_coeffs_::width

image width

Definition at line 92 of file gaussian_conv_dct.h.

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The documentation for this struct was generated from the following file:

• gaussian_conv_dct.h