Noise profiles of images

Function Documentation

◆ stddevImage() [1/2]

template<typename eigenImT , typename eigenImT1 , typename eigenImT2 >

void mx::improc::stddevImage	(	eigenImT &	stdIm,
		const eigenImT1 &	im,
		const eigenImT2 &	mask,
		typename eigenImT::Scalar	minRad,
		typename eigenImT::Scalar	maxRad,
		bool	divide = `false`
	)

Form a standard deviation image, and optionally divide the input by it to form a S/N map.

The standard deviation profile is calculated using linear interpolation on a 1 pixel grid

This version creates a radius map on each call, and calls the above version. This should not be used for repeated alls, rather create a radius map ahead of time.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Template Parameters

eigenImT the eigen array type of the output and non-reference images

Parameters

[out]	stdIm	the standard deviation image. This will be resized.
[in]	im	the image to form the standard deviation profile of, never altered.
[in]	mask	a 1/0 mask. 0 pixels are excluded from the std-dev calculations.
[in]	minRad	the minimum radius to analyze
[in]	maxRad	the maximum radius to analyze
[in]	divide	[optional] if true, the output is the input image is divided by the std-dev profile, i.e. a S/N map. default is false.

Definition at line 1234 of file imageFilters.hpp.

References mx::improc::radiusImage(), and mx::improc::stddevImage().

◆ stddevImage() [2/2]

template<typename eigenImT , typename eigenImT1 , typename eigenImT2 , typename eigenImT3 >

void mx::improc::stddevImage	(	eigenImT &	stdIm,
		const eigenImT1 &	im,
		const eigenImT2 &	rad,
		const eigenImT3 &	mask,
		typename eigenImT::Scalar	minRad,
		typename eigenImT::Scalar	maxRad,
		bool	divide
	)

Form a standard deviation image, and optionally divide the input by it to form a S/N map.

The standard deviation profile is calculated using linear interpolation on a 1 pixel grid

Template Parameters

eigenImT the eigen array type of the output and non-reference images. Each image input can be a different type to allow references, etc.

Parameters

[out]	stdIm	the standard deviation image. This will be resized.
[in]	im	the image to form the standard deviation profile of, never altered.
[in]	rad	array of radius values
[in]	mask	a 1/0 mask. 0 pixels are excluded from the std-dev calculations.
[in]	minRad	the minimum radius to analyze
[in]	maxRad	the maximum radius to analyze
[in]	divide	if true, the output is the input image is divided by the std-dev profile, i.e. a S/N map. default is false.

Definition at line 1128 of file imageFilters.hpp.

References mx::math::vectorVariance().

Referenced by mx::improc::stddevImage(), and mx::improc::stddevImageCube().

◆ stddevImageCube()

template<typename eigenCubeT , typename eigenCubeT1 , typename eigenCubeT2 , typename radT1 , typename radT2 >

void mx::improc::stddevImageCube	(	eigenCubeT &	stdImc,
		const eigenCubeT1 &	imc,
		const eigenCubeT2 &	maskCube,
		radT1	minRad,
		radT2	maxRad,
		bool	divide = `false`
	)

Form a standard deviation image for each imamge in a cube, and optionally divide the input by it forming a S/N map cube. The standard deviation profile is calculated using linear interpolation on a 1 pixel grid

Template Parameters

eigencubeT	is the eigen cube type of the input and output cubes.
eigenImT	the eigen array type of the output and non-reference images.

Parameters

[out]	stdImc	the standard deviation image cube. This will be resized.
[in]	imc	the image cube to form the standard deviation profile of.
[in]	maskCube	a 1/0 mask. 0 pixels are excluded from the std-dev calculations.
[in]	minRad	the minimum radius to analyze
[in]	maxRad	the maximum radius to analyze
[in]	divide	[optional] if true, the output is the input image is divided by the std-dev profile, i.e. a S/N map. default is false.

Definition at line 1263 of file imageFilters.hpp.

References mx::improc::radiusImage(), and mx::improc::stddevImage().