how to compare the color image to another color image in directory?

2013 8 7
2 个回答
3 次查看（30 天）

0 个投票

i have a directory of 2500 color images. i want to compare each image with others to know is there in directory similar image with this?

4 个评论
显示 2更早的评论 隐藏 2更早的评论

Walter Roberson
Walter Roberson 2013-8-7
How do you define "similar image" for this purpose?
preet
preet 2013-8-7
using compare gray value of R,G,B of each image with other
preet
preet 2013-8-7
read each image and compare R,G,B component
preet
preet 2013-8-7
I am try to implement r = corr2(A,B) but this is implement only when both have same size but my images have different sizes .There is one another function that is imshowpair() which may be helpful but worked only in R2012 version of matlab and i am using matlab R2007b. so can you please tell me the solution what should i do before to get new version.I mean any other logic to compare different size of images

请先登录，再进行评论。

请先登录，再回答此问题。

回答（2 个）

Bjorn Gustavsson
Bjorn Gustavsson 2013-8-7

0 个投票

Well it seems someone's allready done the job for you: http://www.mathworks.se/matlabcentral/fileexchange/42008-content-based-image-retrieval
HTH

1 个评论
显示 -1更早的评论 隐藏 -1更早的评论

preet
preet 2013-8-7
Bjorn i want very simple logic , defiantly this is used in CBIR but i just need to check whether there is any similar image in the folder or not. actually when i worked on this there are similar images in folder.but i need the single images in folder . This is my training folder of images

请先登录，再进行评论。

Spandan Tiwari
Spandan Tiwari 2013-8-7

0 个投票

One way to compare the images quickly would be compute a structural quality metric such as SSIM between the two images. It is a popular metric and a quick web search can get you all the necessary info.
It is easy to compute and does more than correlation. But you would need to resize one of the images to match the size of the other. You can use IMRESIZE from the Image Processing Toolbox for that. Although IMSHOWPAIR can be helpful if you want to visualize the mismatch between the two images, it won't give you a metric on the amount of mismatch.

类别

在 帮助中心 和 File Exchange 中查找有关 Convert Image Type 的更多信息

标签

提问:

preet
preet
2013-8-7

Community Treasure Hunt

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

Start Hunting!

Translated by