Add the option to pass a heuristic for the grayscale effect

anthonynsimon / bild

Image processing algorithms in pure Go

MIT License

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Closed anthonynsimon closed 5 years ago

anthonynsimon commented 5 years ago

Adds a new function with signature:

func GrayscaleWithWeights(img image.Image, r, g, b float64) *image.Gray

This fixes #65