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image.maxfit - Function

1.1.1 Find maximum and do parabolic fit in the sky


Description

This function finds the pixel with the maximum value in the region, and then uses function findsources to generate a Componentlist with one component. The component will be of type Point (point=T) or Gaussian (point=F).

If negfind=F the maximum pixel value is found in the region and fit. If negfind=T the absolute maximum pixel value is found in the region and fit.

See function findsources for a description of arguments point and width.

See also the function fitcomponents.

Arguments





Inputs

region

Region selection. See ”help par.region” for details. Default is to use the full image.

allowed:

any

Default:

variant

point

Find only point sources?

allowed:

bool

Default:

true

width

Half-width of fit grid when point=F

allowed:

int

Default:

5

negfind

Find negative sources as well as positive?

allowed:

bool

Default:

false

list

List the fitted parameters to the logger?

allowed:

bool

Default:

true

Returns
record

Example

 
 
"""  
#  
print "\t----\t maxfit Ex 1 \t----"  
ia.maketestimage()  
clrec = ia.maxfit()  
print clrec          # There is only one component  
ia.close()  
#  
"""  
 
 

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