7
$\begingroup$

I want to create a ML classifier using images just like this example.

I have two classes of images in two different folders. Is there an easier way to import all images from both folders rather than inserting picture by picture?

enter image description here

Improve this question
$\endgroup$
2
  • 2
    $\begingroup$ something like Import[#] & /@ FileNames["folder/*.jpg"] is what you want. Mathematica has about 3 gigabytes of documentation. $\endgroup$
    – acl
    Commented Aug 22, 2014 at 18:40
  • $\begingroup$ You can also use wildcards directly in Import $\endgroup$
    – mfvonh
    Commented Aug 22, 2014 at 21:20

2 Answers 2

Reset to default
7
$\begingroup$

Classify actually supports a nice syntax for this:

Classify[<|"class1" -> Import["class1/*"], "class2" -> Import["class2/*"]|>]
Improve this answer
$\endgroup$
1
$\begingroup$

Yes, in order to create your list of images you can use the following piece of code:

Join[
 Thread@Rule[Import["~/Desktop/folder1/*.png"], "Day"],
 Thread@Rule[Import["~/Desktop/folder2/*.png"], "Night"]
 ]

Of course you will need to change the file path and the properties (day/night) appropriately.

Improve this answer
$\endgroup$
1
  • $\begingroup$ That Thread @ Rule stuff is totally unnecessary. Look at the third usage of Classify $\endgroup$
    – Taliesin Beynon
    Commented Sep 24, 2014 at 5:30

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.