1.1.1.0 image.modify

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image.modify - Function

1.1.1 Modify image with a model

Description

This function applies a model of the sky to the image. You can add or subtract the model which is contained in a Componentlist tool.

The pixel values are only changed where the total mask (combination of the default pixel mask [if any] and the OTF mask) is good (True). If the computation fails for a particular pixel (e.g. coordinate undefined) that pixel will be masked bad.

Arguments


Inputs
model	Record representation of a ComponentList model
	allowed:	record
	Default:
region	Region selection. See ”help par.region” for details. Default is to use the full image.
	allowed:	any
	Default:	variant
mask	Mask to use. See help par.mask. Default is none.
	allowed:	any
	Default:	variant
subtract	Subtract or add the model
	allowed:	bool
	Default:	true
list	List informative messages to the logger
	allowed:	bool
	Default:	true
stretch	Stretch the mask if necessary and possible? See help par.stretch. Default False
	allowed:	bool
	Default:	false

Returns
bool

Example

"""
#
print "\t----\t modify Ex 1 \t----"
ia.maketestimage()
clrec = ia.fitcomponents()
ia.modify(clrec[’results’])
ia.close()
#
"""

In this example we subtract the model returned by the fitcomponents function.

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