Extract image date from time-lapse photos

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Hey! I`m new to OpenCV and would be thankful for some hints to solve a problem.

I`m working with time-lapse images. My cameras record video files, which I later split in single frames. My problem: The extracted .jpg-files are just numbered 001 to nnn and include no additional information. I need to rename the .jpg files each with the date & time of image acquisition. There are time-stamps within the picturesrd_00001 001.jpg from which the date and time should be extracted. Since I have a lot of time-lapse cameras I will have to automate this for all image files within one folder.

Thanks for any reply!