imread all files in directory

imread

asked 2016-09-20 03:11:33 -0600

atv
11 ●2 ●6

updated 2017-08-02 16:30:59 -0600

sturkmen

6772 ●3 ●48 ●79 https://github.com/stu...

How would i modify this example to allow using a asterisk * as a argument so it would process all files instead of just the one argument.

http://docs.opencv.org/2.4/doc/tutori...

For some reason it doesn't accept * as a argc==2 (even if it could it would still need some adapting of course) I was messing around with dirent but the opencv way seems a lot cleaner.

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what have you tried? show us your code!

Balaji R ( 2016-09-20 03:14:25 -0600 )edit

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answered 2016-09-20 03:38:39 -0600

berak
32993 ●7 ●81 ●312

imread() on its own can not do any asterisk magic. if you're using opencv3, there's cv::glob:

String pattern = "./*"; //all files in this directory. "*.png" would be valid, too !
vector<String> filenames;

glob(pattern, filenames, false);

for (size_t i=0; i<filenames.size(); i++)
{
    Mat img = imread(filenames[i]);
    // do something with img ..
}