ここを参考に https://www.pyimagesearch.com/2016/03/28/measuring-size-of-objects-in-an-image-with-opencv/https://github.com/shohei/measure-from-image

ここを参考に https://qiita.com/ikwzm/items/e48309c8657d81535fac dvi2rgb IPコアのcomponent.xmlの修正が参考になった