Gray world algorithm


sum up all and average
work very well
![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F7cb0b5a3-7409-455c-a24c-5480957d73df%2FUntitled.png?table=block&id=84ad03f2-5c4c-4924-945d-76b7a1ba170c&cache=v2)





