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DOHYUN JANG


Last seen: 4 years ago |  Active since 2019

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separating two mixed audio file using low pass filter and carrier frequency
This is how the file made, two audio files mixed together with the process of applying low pass filter and carrier frequency. ...

4 years ago | 0 answers | 0

0

answers

Question


how to change these parts to 0??
This is the picture of a gray image after DCT porcess. I want make other 4 images which are : 1. make part 1 in picture to 0 ...

4 years ago | 1 answer | 0

1

answer

Question


if I dct a gray image and then Idct, isnt it should be the original gray image?
A=imread('yachae.jpg'); B=rgb2gray(A); DCTB=dct2(B); IDCTB=idct2(DCTB); imshow(IDCTB); isnt it should be the original image...

4 years ago | 1 answer | 0

1

answer

Question


how can i make such an image by apllying DC processing?
input image is a 256X256 gray image, and I used dct2 to make a DCT image. then professor said I should set DC 32 X 32 =0 and I...

4 years ago | 2 answers | 0

2

answers

Question


how can I make these image?
no11=imread('no1.jpg'); no22=imread('no2.jpg'); bno1 = rgb2gray(no11); bno2 = rgb2gray(no22); subplot(2,2,1); imshow(bno1); ...

4 years ago | 1 answer | 0

1

answer

Question


how can I make this nonstationary signal's dft graph?
how can i make such a signal graph with 5hz, 20hz, 50hz and 1000 smapling frequency?

4 years ago | 1 answer | 0

1

answer

Question


how can I seperate magnitude and phase from an image using 2d dft?(fft2)
when you activate the file. four image should appear like this. img1, img2, img1 magnitude + img2 phase , img1 ph...

4 years ago | 1 answer | 0

1

answer