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Version 1.9 Build 1556

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imageevaluator - Tool

	Package	synthesis
	Module	simulator

Postscript file available

Tool for evaluating simulated images
include "imageevaluator.g"

Description

imageevaluator provides a set of simple tools for evaluating the quality of a simulated image. Some functions, such as dynamicrange, need no truth image and can be run on images made from real data. Other functions, such as fidelity, require a truth image and can be used to compare a reconstructed image to the model from which the data were simulated.

Example
The following example shows one way to use the imageevaluator tool:

include 'imageevaluator.g'
#
# construct an imageevaluator tool
#
ime := imageevaluator('TEST.IMAGE');
#
# make a region which contains off-source pixels
#
r := drm.box(blc="1 1 1", trc="30 30 1")
#
# calculate dynamic range
#
ime.dynamicrange(r);
#
#  calculate image fidelity, ignoring truth pixels below 0.01
#
truthmin := 0.01;
ime.fidelity('TRUTH.IMAGE', truthmin);
#
ime.done();
#

Constructors

imageevaluator	Construct an imageevaluator tool

Functions

done	Finishes up the imageevaluator tool
dynamicrange	Calculate image dynamic range
fidelity	Calculate the median image fidelity