Are there examples of image clustering algorithms in java?

Question

Java

Or how to get this from this image
without using Hadoop?

Answer 1

I won’t tell you about the toad, but in this case everything is quite simple: we convert the image, for example, to HSV, then we quantize it by color tone with the required step, and then we find 8-connected areas with beaten “walking squares”. Voila - segmentation is ready.