dftcv

Computes the Discrete Fourier Transform of an image. dftcv is available only on Windows.

Syntax

R = dftcv(handle)

[R, data] = dftcv(handle)

Inputs

handle
Handle of an image.
Type: integer

Outputs

R
Handle of the Discrete Fourier Transform image.
Type: integer
data
Discrete Fourier Transform data of the image.
Type: matrix

Example

Apply Discrete Fourier Transform on an image: 

handle = imreadcv('image1.jpg');
[R, data] = dftcv(handle);


Figure 1. Input image


Figure 2. Filtered image