ArrayImage Application User's Guide Version 1.0

Overview

This is an application for converting data encoded in a floating point array format. The primary action of this application is to create a UIF/FPIC from an ASCII array file. The ASCII array file is expected to have column elements that are space-delimited and rows that are line-delimited. By default, all data is interpreted to have 64-bit floating point precision.

If the data is encodes the Jacobian determinant, this application has an output mode which creates a visualization where values increasingly greater than one are mapped to increasingly brighter reds and decreasingly less than one values are mapped to increasingly brighter blues. Values near one will map to black which, by definition, has no brightness.

Examples

Consider a data file, 'data.txt':

$ cat data.txt 
1.2 6.3
6.5 7.8
0.4 4.2

The a UIF/FPIC named 'data.uif' is created from this data with the following call:

java -jar ArrayToImage.jar -input data.txt -outputUif data.uif