ImageTools: graph

graph

denoise test improvements: save results, don't depend on Images
2019-12-20, by Tuomo Valkonen
Visualisation does aspect ratio correctly.
2019-12-19, by Tuomo Valkonen
safety min-max
2019-12-19, by Tuomo Valkonen
Add gaussian distr to avoid hevy ImageFiltering dependencies.
2019-12-18, by Tuomo Valkonen
update deps
2019-12-16, by Tuomo Valkonen
Small possible optimisations
2019-12-14, by Tuomo Valkonen

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