image database for segmentation

Is there any good database of images with their ground t开发者_开发知识库ruths online that I can use to perform image segmentation tests?

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Is bsds what you're looking for? It's about 50 MB and the conditions seem good:

You are free to download a portion of the dataset for non-commercial research and educational purposes. In exchange, we request only that you make available to us the results of running your segmentation or boundary detection algorithm on the test set as described below.