Undefined function 'fftshow' for input arguments of type 'double'.

I want to show bandpass filtered image. This is matlab code i used

To aquire filtered image, there is an error in code.

what should i do for correct this error?

(image size : 1200x1200, gray scale)

Answer 1

[David Young]

You probably don't have fftshow.m on your MATLAB path. This m-file is not part of MATLAB or its toolboxes, but needs to be obtained from somewhere else, such as the File Exchange. Make sure you have downloaded it, and put it in a folder that is on your path.

To check, give the command

which fftshow

[KYU DEOK OH]

Thank you so much your answers.

I acquired image i want

Thank you

Answer 2

[Luuk van Oosten]

use

single(ima_out)

to convert the 'double' to 'single'.

[David Young]

Where is there a version of fftshow that accepts single but not double arguments? Why would anyone write such a thing?