adding multiple images together from a for loop

2013 7 19
1 个回答
回答已采纳
2 次查看（30 天）

0 个投票

I am trying to adding multiple images together into one in a for loop, but seem to only display the last image. This is what I've tried. Someone please assist me.
E = [];
for i = 1:4
str = int2str(i);
str = strcat('\',str,'.jpg');
str = strcat('C:\Users\ASUSA55V\Documents\MATLAB\images\ur3', str);
im = imread(str);
im = imresize(im,[64 70]);
E = im;
E = E+E(i);
end
imshow(E);
Thanks

请先登录，再回答此问题。

 采纳的回答

David Sanchez
David Sanchez 2013-7-19

0 个投票

Try this out:
E = [];
for i = 1:4
str = int2str(i);
str = strcat('\',str,'.jpg');
str = strcat('C:\Users\ASUSA55V\Documents\MATLAB\images\ur3', str);
im = imread(str);
im = imresize(im,[64 70]);
E = E + im;
end
imshow(E);

3 个评论
显示 1更早的评论 隐藏 1更早的评论

David Sanchez
David Sanchez 2013-7-19
why did you add that line? With it, you are overwriting previous data and saving only the last image.
Jack Sparrow
Jack Sparrow 2013-7-19
Thank you david, but I'm gettin this error:
Error using +
Matrix dimensions must agree.
Error in Untitled2 (line 12)
E = E + im;
but, when I tried to change the code to
E = [];
for i = 1:4
str = int2str(i);
str = strcat('\',str,'.jpg');
str = strcat('C:\Users\ASUSA55V\Documents\MATLAB\images\ur3', str);
im = imread(str);
im = imresize(im,[64 70]);
E = im; %%%%I added this to the code
E = E + im;
end
imshow(E);
It seem to be showing only the last image. I want it to include information from all the combined images.
David Sanchez
David Sanchez 2013-7-19
By the way, what do you want to do? When adding images like that, you will not save the information of the images, you'll add them up and you will end with a very white image.

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Image Arithmetic 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