can some help me please with Otsu thresholding matlab code in which the dimensions, width, height, of the output image is equal to the orignal image (input image). Thanks in advance.

1 次查看(过去 30 天)
  15 个评论
Arshad Ali
Arshad Ali 2018-11-24
i found my mistake instead of using imwrite() command i save images directly . when i used imwrite() command it save image with original dimension .. Thank you Walter Roberson. Thank you so much..

请先登录,再进行评论。

回答(1 个)

KALYAN ACHARJYA
KALYAN ACHARJYA 2018-11-22
Hello Arshad, otsu thresolding techniqie is very popular thresholding approach in image segmentation domain. I have posted the following code from Gonzalez book (Digital Image Processing using Matlab), requested you to refer the book for detail explanation.
function [T,SM]=otsuthresh(h);
h=h/sum(h);
h=h(:);
i=(1:numel(h))';
P1=cumsum(h);
m=cumsum(i.*h);
mG=m(end);
sigSquared=((mG*P1-m).^2)./(P1.*(1-P1)+eps);
maxSigsq=max(sigSquared);
T=mean(find(sigSquared==maxSigsq));
T=(T-1)/(numel(h)-1);
SM=maxSigsq/(sum(((i-mG).^2).*h)+eps);
end

类别

Help CenterFile Exchange 中查找有关 Images 的更多信息

Community Treasure Hunt

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

Start Hunting!

Translated by