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Where can I legally obtain the following kinds of datasets for training an image recognition algorithm for commercial use?

  • photos of people
  • car license plates

The privacy laws in Europe (Germany) do not allow to collect such images from users and users may even have objections against collecting and storing such data.

The purpose is to filter out inappropriate content.

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    $\begingroup$ This question is suited best for the Open Data stack. $\endgroup$ – grldsndrs Jun 1 '17 at 19:11
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  1. People - you could try using IMDB images of actors.
  2. License plates - that's going to be much tougher. Do you want to recognize which country a license plate is from, or do you want it to be able to read the unique letters and numbers off a license plate? If it is the first case, you could use sample license plates that are typically published government offices. If it is the second case, you would likely have to find public images that happen to include license plates. I know Google likes to blur them out on Street View.
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  • $\begingroup$ 1. IMDB doesn't allow commercial use 2. The dataset would be used to train image recognition algorithm to filter out images containing license plates. Reading the content of the plate is not important in this case, being able to detect whether an image contains a license plate is. $\endgroup$ – Peter Gerhat May 30 '17 at 18:10
  • $\begingroup$ 2 - What's wrong with scraping something like this? worldlicenseplates.com Alternatively, I believe there are only a couple of standards for license plate size. You could train the model to recognize boxes of that size rather than "license plates". I would note this is a rather difficult problem - you see companies (Google?) doing it on ReCAPTCHA on a huge scale. $\endgroup$ – CalZ May 30 '17 at 19:22

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