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features extraction and image processing

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Mammo Image
Mammo Image on 16 Mar 2016
Commented: Image Analyst on 17 Mar 2016
Hi everyone,
I tried to implement a code of feature extraction, at first I implemented on dataset pictures with size 77 K for each and its done.
the problem when I changed the dataset pictures with size 2 Mb, its took about two hours for finish.
how can I change the size of the pictures (they are about 60 pictures) and is this affect on feature extraction process?
Thanks for all Regards

  3 Comments

Explorer
Explorer on 16 Mar 2016
Have you tried to resize images of dataset using imresize() function?
Mammo Image
Mammo Image on 17 Mar 2016
someone told me this may affect on the original features of the picture, is it true?
Image Analyst
Image Analyst on 17 Mar 2016
Yes, that's true. You can't get a benefit of speeding up by shrinking the image without some tradeoff, like losing resolution. If you just want faster with no drawbacks, then get a faster computer or try to analyze how your algorithm might be speeded up, like reversing the order of nested for loops, or other such things.

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