Functions for calibrations

Functions
cpl_vector *	xsh_irplib_imagelist_get_clean_mean_levels (const cpl_imagelist *iml, const double kappa, const int nclip, const double tolerance)
	find out the character string associated to the DIT keyword in a propertylist
static cpl_error_code	irplib_imagelist_subtract_values (cpl_imagelist **iml, cpl_vector *values)
	Subtract from input imagelist values specified in input vector.
cpl_image *	xsh_irplib_mkmaster_mean (cpl_imagelist *images, const double kappa, const int nclip, const double tolerance, const double klow, const double khigh)
	Computes master frame by clean stack mean of the input imagelist.
cpl_image *	xsh_irplib_mkmaster_median (cpl_imagelist *images, const double kappa, const int nclip, const double tolerance)
	Computes master frame by clean stack median of the input imagelist.
cpl_imagelist *	xsh_irplib_mkmaster_dark_fill_imagelist (const cpl_imagelist *raw_images, cpl_propertylist **raw_headers, const cpl_image *master_bias, double *mean_exptime)

Detailed Description

Function Documentation

irplib_imagelist_subtract_values()

static cpl_error_code irplib_imagelist_subtract_values ( cpl_imagelist **  iml, cpl_vector *  values  )

static

Subtract from input imagelist values specified in input vector.

Parameters

iml	input imagelist
values	value to be subtracted

Returns

corrected imagelist

Definition at line 120 of file xsh_irplib_mkmaster.c.

References size.

Referenced by xsh_irplib_mkmaster_mean(), and xsh_irplib_mkmaster_median().

xsh_irplib_imagelist_get_clean_mean_levels()

cpl_vector * xsh_irplib_imagelist_get_clean_mean_levels	(	const cpl_imagelist *	iml,
		const double	kappa,
		const int	nclip,
		const double	tolerance
	)

find out the character string associated to the DIT keyword in a propertylist

Parameters

plist

propertylist

Returns

dit value

Computes kappa-sigma clean mean (free bad pixels) for each input image of the input imagelist.

Parameters

iml	input imagelist
kappa	value for kappa-sigma clip
nclip	Number of clipping iterations
tolerance	tolerance on range between two successive clip iterations

Returns

vector with computed values for each image of the list

The returned vector must be deallocated.

Definition at line 73 of file xsh_irplib_mkmaster.c.

References kappa, size, tolerance, and xsh_ksigma_clip().

Referenced by xsh_irplib_mkmaster_mean(), xsh_irplib_mkmaster_median(), and xsh_preoverscan_corr().

xsh_irplib_mkmaster_dark_fill_imagelist()

cpl_imagelist * xsh_irplib_mkmaster_dark_fill_imagelist	(	const cpl_imagelist *	raw_images,
		cpl_propertylist **	raw_headers,
		const cpl_image *	master_bias,
		double *	mean_exptime
	)

Definition at line 394 of file xsh_irplib_mkmaster.c.

References xsh_pfits_get_exptime().

Referenced by xsh_create_master_dark2().

xsh_irplib_mkmaster_mean()

cpl_image * xsh_irplib_mkmaster_mean	(	cpl_imagelist *	images,
		const double	kappa,
		const int	nclip,
		const double	tolerance,
		const double	klow,
		const double	khigh
	)

Computes master frame by clean stack mean of the input imagelist.

Parameters

images	input imagelist
kappa	value for kappa-sigma clip
nclip	Number of clipping iterations
tolerance	tolerance on range between two successive clip iterations
klow	kappa value applied to kappa sigma clip low pix values
khigh	kappa value applied to kappa sigma clip low pix values

Returns

master image

The returned image must be deallocated.

Definition at line 318 of file xsh_irplib_mkmaster.c.

References irplib_imagelist_subtract_values(), kappa, tolerance, and xsh_irplib_imagelist_get_clean_mean_levels().

Referenced by xsh_create_master_bias2(), and xsh_create_master_dark2().

xsh_irplib_mkmaster_median()

cpl_image * xsh_irplib_mkmaster_median	(	cpl_imagelist *	images,
		const double	kappa,
		const int	nclip,
		const double	tolerance
	)

Computes master frame by clean stack median of the input imagelist.

Parameters

images	input imagelist
kappa	value for kappa-sigma clip
nclip	Number of clipping iterations
tolerance	tolerance on range between two successive clip iterations

Returns

master image

The returned image must be deallocated.

Definition at line 362 of file xsh_irplib_mkmaster.c.

References irplib_imagelist_subtract_values(), kappa, tolerance, xsh_imagelist_collapse_median_create(), and xsh_irplib_imagelist_get_clean_mean_levels().

Referenced by xsh_create_master_bias2(), and xsh_create_master_dark2().