SALAT_CONTRAST¶

SALAT_CONTRAST

Compute and plot "mean intensity" and "rms intensity contrast" of a cube and indicate bad/good frames based on a given threshold. Gaps (due to ALMA calibration routines) are marked with Red dashed lines.

CALLING SEQUENCE:

>>> import salat
>>> bfrs = salat.contrast(almacube,timesec,show_best=True)

INPUTS / OPTIONAL KEYWORDS

Option	Description	Status	Default
`almadata`	Datacube as array from "salat_read". It can be 2D and 3D	`required`
`timesec`	Timesec array from "salat_read"	`required`
`side`	Number of pixels to be excluded from sides of the field of view prior to calculations of the mean intensity and rms contrast.	`required`	`5`
`show_best`	If `True`, location of the best frame (i.e., that with the largest rms contrast) is indicated on the plot.	`optional`	`False`

OUTPUTS

Parameter	Description
`bestframes`	Indexes of the best frames sorted (i.e., that with the largest rms contrast).
`fig`	A matplotlib plot is produced.

EXAMPLE

Finding best frames and plotting RMS contrast for one cube

>>> import salat
>>> bfrs = salat.contrast(almacube,timesec,show_best=True)

---------------------------------------------------
------------ SALAT CONTRAST part of -------------
-- Solar Alma Library of Auxiliary Tools (SALAT) --

Source code

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