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Is there any good database of images with their ground truths online that I can use to perform image segmentation tests?

A: 

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.

Alex Martelli
I am looking for ground truths in which each pixel is given a color according to their segment, from what I understand this has to be done by hand to be very precise. I guess I can probably modify the bsds segments for use like that but not sure if it will be very accurate. Are there any other databases you know of, google does not turn up anything good.
n0ob
nvm I found a way to use them thanks
n0ob