A Domain Specific Language for image analysis that has used GPUs as well is Diderot (http://diderot-language.cs.uchicago.edu/ http://diderot-language.cs.uchicag

A Domain Specific Language for image analysis that has used GPUs as well is Diderot (http://diderot-language.cs.uchicago.edu/ http://diderot-language.cs.uchicago.edu/) Diderot is very different from Halide though. I think Halide is for processing image data, while Diderot's interface is a much higher level of abstraction (program are written in terms of tensor fields, which Diderot then reconstructs from image data).