Reduce the steps within this code

1 次查看（过去 30 天）
Ayesha
Ayesha 2014-1-19
编辑： Image Analyst 2014-1-19
Hi there!
I've been wondering of a way to cut down the steps of sorting the transform and thresholding which constructs an image based on specific # of coefficicents. f is the image and M=4096:
R = fft2(f);
s = sort(abs(R(:)));
s = s(end:-1:1);
T = s(M+1);
R = R.*(abs(R)>T);
f1 = real(ifft2(R));
Just a thought. What do you suggest?

请先登录，再回答此问题。

采纳的回答

Amit
Amit 2014-1-19
编辑：Amit 2014-1-19
R = fft2(f);
s = sort(abs(R(:)),1,'descend');
%s = s(end:-1:1);
T = s(M+1);
%R = R.*(abs(R)>T);
f1 = real(ifft2(R.*(abs(R)>T)));

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Images 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by