◆ rasterApprox()

template<typename T , long n>

bool Euclid::Fits::Test::rasterApprox	(	const Raster< T, n > &	test,
		const Raster< T, n > &	ref,
		double	tol = `0.01`
	)

Check whether a test raster is approximately equal to a reference raster.

Test each pixel as: |ref - test| / test < tol