Hello Henk, What you desire is certainly attainable. As in similar cases, there is more than one solution possible, so you have a wealth of choices at your disposal. To store your images you may use Datastore and Cloud Storage in conjunction, where the storage it meant to store the actual images. One possible implementation is described in the reply to the "Storing images and structured data together (Google Cloud Platform) <https://stackoverflow.com/questions/41401103/storing-images-and-structured-data-together-google-cloud-platform?rq=1>" question in stackoverflow.
For the actual tagging effort, your app may use the Vision API to assign tags based on certain features detected in the image. Label Detection detects broad sets of categories within an image, which range from modes of transportation to animals. You may get a feel of how this feature works from the "Detecting Labels <https://cloud.google.com/vision/docs/detecting-labels>" documentation page. For coding issues specifically, you reach a larger pool of specialized programmer if you publish your question on Stackoverflow <https://stackoverflow.com/>. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/590392fc-da12-483a-b036-0a273889e751%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.