Please check wavelength code which it correct or not?
显示 更早的评论
This image is the wavelength from the video that i calculated only red channel but I'm not sure that the code is correct or not?
redchannel = frame(:, :, 1);
len=length(redchannel);
n=0:len-1;
N=n*fs/(len-1);
F = fft2(redchannel);
F = fftshift(F);
F = abs(F);
F = log(F+1);
F = mat2gray(F);
plot(N,F)
1 个评论
Image Analyst
2018-7-4
Maybe. It does what you told it to do - plot spatial frequencies for every row. What do you want it to do?
回答（1 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Image Category Classification 的更多信息
2018-7-4
2018-7-7
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
