File Stack.h

namespace lsst

Class for a simple mapping implementing a generic AstrometryTransform.

Remove all non-astronomical counts from the Chunk Exposure’s pixels.

Forward declarations for lsst::utils::Cache

For details on the Cache class, see the Cache.h file.

It uses a template rather than a pointer so that the derived classes can use the specifics of the transform. The class simplePolyMapping overloads a few routines.

A base class for image defects

Numeric constants used by the Integrate.h integrator routines.

Compute Image Statistics

Note

Gauss-Kronrod-Patterson quadrature coefficients for use in quadpack routine qng. These coefficients were calculated with 101 decimal digit arithmetic by L. W. Fullerton, Bell Labs, Nov 1981.

Note

The Statistics class itself can only handle lsst::afw::image::MaskedImage() types. The philosophy has been to handle other types by making them look like lsst::afw::image::MaskedImage() and reusing that code. Users should have no need to instantiate a Statistics object directly, but should use the overloaded makeStatistics() factory functions.

namespace afw
namespace math

Functions

template<typename PixelT>
std::shared_ptr<lsst::afw::image::Image<PixelT>> statisticsStack(std::vector<std::shared_ptr<lsst::afw::image::Image<PixelT>>> &images, Property flags, StatisticsControl const &sctrl = StatisticsControl(), std::vector<lsst::afw::image::VariancePixel> const &wvector = std::vector<lsst::afw::image::VariancePixel>(0))

Parameters

  • images: Images to process

  • flags: statistics requested

  • sctrl: Control structure

  • wvector: vector containing weights

A function to compute some statistics of a stack of Images

template<typename PixelT>
void statisticsStack(lsst::afw::image::Image<PixelT> &out, std::vector<std::shared_ptr<lsst::afw::image::Image<PixelT>>> &images, Property flags, StatisticsControl const &sctrl = StatisticsControl(), std::vector<lsst::afw::image::VariancePixel> const &wvector = std::vector<lsst::afw::image::VariancePixel>(0))

Parameters

  • out: Output image

  • images: Images to process

  • flags: statistics requested

  • sctrl: Control structure

  • wvector: vector containing weights

@ brief compute statistical stack of Image. Write to output image in-situ

template<typename PixelT>
std::shared_ptr<lsst::afw::image::MaskedImage<PixelT>> statisticsStack(std::vector<std::shared_ptr<lsst::afw::image::MaskedImage<PixelT>>> &images, Property flags, StatisticsControl const &sctrl, std::vector<lsst::afw::image::VariancePixel> const &wvector, image::MaskPixel clipped, std::vector<std::pair<image::MaskPixel, image::MaskPixel>> const &maskMap)

A function to compute some statistics of a stack of Masked Images

If none of the input images are valid for some pixel, the afwMath::StatisticsControl::getNoGoodPixelsMask() bit(s) are set.

Parameters

  • [in] images: MaskedImages to process.

  • [in] flags: Statistics requested.

  • [in] sctrl: Control structure.

  • [in] wvector: Vector of weights.

  • [in] clipped: Mask to set for pixels that were clipped (NOT rejected due to masks).

  • [in] maskMap: Vector of pairs of mask pixel values; any pixel on an input with any of the bits in .first will result in all of the bits in .second being set on the corresponding pixel on the output.

All the work is done in the function computeMaskedImageStack.

template<typename PixelT>
std::shared_ptr<lsst::afw::image::MaskedImage<PixelT>> statisticsStack(std::vector<std::shared_ptr<lsst::afw::image::MaskedImage<PixelT>>> &images, Property flags, StatisticsControl const &sctrl = StatisticsControl(), std::vector<lsst::afw::image::VariancePixel> const &wvector = std::vector<lsst::afw::image::VariancePixel>(0), image::MaskPixel clipped = 0, image::MaskPixel excuse = 0)

Parameters

  • images: MaskedImages to process

  • flags: statistics requested

  • sctrl: control structure

  • wvector: vector containing weights

  • clipped: bitmask to set if any input was clipped or masked

  • excuse: bitmask to excuse from marking as clipped

A function to compute some statistics of a stack of Masked Images

If none of the input images are valid for some pixel, the afwMath::StatisticsControl::getNoGoodPixelsMask() bit(s) are set.

Delegates to the more general version of statisticsStack taking a maskMap.

template<typename PixelT>
void statisticsStack(lsst::afw::image::MaskedImage<PixelT> &out, std::vector<std::shared_ptr<lsst::afw::image::MaskedImage<PixelT>>> &images, Property flags, StatisticsControl const &sctrl, std::vector<lsst::afw::image::VariancePixel> const &wvector, image::MaskPixel clipped, std::vector<std::pair<image::MaskPixel, image::MaskPixel>> const &maskMap)

A function to compute some statistics of a stack of Masked Images

If none of the input images are valid for some pixel, the afwMath::StatisticsControl::getNoGoodPixelsMask() bit(s) are set.

Parameters

  • [out] out: Output MaskedImage.

  • [in] images: MaskedImages to process.

  • [in] flags: Statistics requested.

  • [in] sctrl: Control structure.

  • [in] wvector: Vector of weights.

  • [in] clipped: Mask to set for pixels that were clipped (NOT rejected due to masks).

  • [in] maskMap: Vector of pairs of mask pixel values; any pixel on an input with any of the bits in .first will result in all of the bits in .second being set on the corresponding pixel on the output.

All the work is done in the function computeMaskedImageStack.

template<typename PixelT>
void statisticsStack(lsst::afw::image::MaskedImage<PixelT> &out, std::vector<std::shared_ptr<lsst::afw::image::MaskedImage<PixelT>>> &images, Property flags, StatisticsControl const &sctrl = StatisticsControl(), std::vector<lsst::afw::image::VariancePixel> const &wvector = std::vector<lsst::afw::image::VariancePixel>(0), image::MaskPixel clipped = 0, image::MaskPixel excuse = 0)

Parameters

  • out: Output image

  • images: MaskedImages to process

  • flags: statistics requested

  • sctrl: control structure

  • wvector: vector containing weights

  • clipped: bitmask to set if any input was clipped or masked

  • excuse: bitmask to excuse from marking as clipped

@ brief compute statistical stack of MaskedImage. Write to output image in-situ

template<typename PixelT>
std::vector<PixelT> statisticsStack(std::vector<std::vector<PixelT>> &vectors, Property flags, StatisticsControl const &sctrl = StatisticsControl(), std::vector<lsst::afw::image::VariancePixel> const &wvector = std::vector<lsst::afw::image::VariancePixel>(0))

Parameters

  • vectors: Vectors to process

  • flags: statistics requested

  • sctrl: control structure

  • wvector: vector containing weights

A function to compute some statistics of a stack of std::vectors

template<typename PixelT>
std::shared_ptr<lsst::afw::image::MaskedImage<PixelT>> statisticsStack(lsst::afw::image::Image<PixelT> const &image, Property flags, char dimension, StatisticsControl const &sctrl = StatisticsControl())

A function to compute statistics on the rows or columns of an image

template<typename PixelT>
std::shared_ptr<lsst::afw::image::MaskedImage<PixelT>> statisticsStack(lsst::afw::image::MaskedImage<PixelT> const &image, Property flags, char dimension, StatisticsControl const &sctrl = StatisticsControl())

A function to compute statistics on the rows or columns of an image