Sky tweaking algorithm

Functions
int	eris_ifu_plot_cube_background (cpl_imagelist *obj)
	Extract backgroung from cube and plot.
cpl_imagelist *	eris_ifu_sky_tweak (cpl_imagelist *obj, cpl_imagelist *sky, const cpl_propertylist *header, float min_frac, int tbsub, int skip_last, int stretch, int stretch_degree, int stretch_resampling, int plot, cpl_imagelist **new_sky)
	Main sky tweaking function.

Detailed Description

Function Documentation

eris_ifu_plot_cube_background()

int eris_ifu_plot_cube_background

(

cpl_imagelist *

obj

)

Extract backgroung from cube and plot.

Parameters

obj

Cube

Returns

Possible cpl_error_code set in this function:

• CPL_ERROR_NULL_INPUT if input is NULL.
• CPL_ERROR_ILLEGAL_INPUT if input is incorrect.

Definition at line 153 of file eris_ifu_sky_tweak.c.

References eris_ifu_lcorr_create_object_mask().

eris_ifu_sky_tweak()

cpl_imagelist * eris_ifu_sky_tweak	(	cpl_imagelist *	obj,
		cpl_imagelist *	sky,
		const cpl_propertylist *	header,
		float	min_frac,
		int	tbsub,
		int	skip_last,
		int	stretch,
		int	stretch_degree,
		int	stretch_resampling,
		int	plot,
		cpl_imagelist **	new_sky
	)

Main sky tweaking function.

Parameters

obj	Object cube
sky	Sky cube
header	NAXIS3 / CRVAL3 / CDELT3 / CRPIX3
min_frac	Percentage of pixels kept for the background
tbsub	Subtract thermal background from new obj cube
skip_last
stretch	the sky
stretch_degree	: polynomial degree
stretch_resampling	: 1:linear, 2:spline
plot
new_sky

Returns

The new sky-corrected obj cube Possible cpl_error_code set in this function:

• CPL_ERROR_NULL_INPUT if input is NULL.
• CPL_ERROR_ILLEGAL_INPUT if input is incorrect.

Definition at line 201 of file eris_ifu_sky_tweak.c.

References eris_check_error_code(), eris_ifu_lcorr_create_lambda_vector(), and eris_ifu_lcorr_create_object_mask().