find mutual information between series of images

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talayeh ghodsi
talayeh ghodsi 2019-11-10
评论： talayeh ghodsi 2019-11-10
hi everybody.
I have an image called 'echo'. and series of 16 images called 4-chamber view190...4-chamber view206.
I want to find the mutual information between echo and the series of 16 images to find the maximum mutual information between echo and one of the 16 images.
i have written a for loop but the output is just one scalar for example MI=2. but i need 16 MI outputs to find the maximum of them. could anyone tell me how can i do that?
Image_Address='I:\area finding\10%\';
file_format_Echo='.jpg';
echo=rgb2gray(imread('echo_masked.jpg'))
[m,n] = size(echo)
for num_echo=190:206
prefix_image='4-chamber view';
Image=imread(strcat(Image_Address,prefix_image,num2str(num_echo),file_format_Echo));
Image=imresize(echo,[m,n])
MI=MI2(echo,Image,'Normalized')
end

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回答（1 个）

Arash Rabbani
Arash Rabbani 2019-11-10
Hi, why dont you save the MI values inside an array like this:
and then find the location of the maximum value.
Image_Address='I:\area finding\10%\';
file_format_Echo='.jpg';
echo=rgb2gray(imread('echo_masked.jpg'))
[m,n] = size(echo)
for num_echo=190:206
prefix_image='4-chamber view';
Image=imread(strcat(Image_Address,prefix_image,num2str(num_echo),file_format_Echo));
Image=imresize(echo,[m,n])
MI(num_echo)=MI2(echo,Image,'Normalized')
end
MAX_MI_Location=find(MI==max(MI))
  1 个评论
talayeh ghodsi
talayeh ghodsi 2019-11-10
thanks for yur answer sir
the MI(num_echo) should have 16 elements but as you see in work space (screenshot is attached) it has 206 elements
how can i solve it?

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