com.pixelmed.apps

Class IntegerScalingOfFloatingPointPixelData

java.lang.Object

com.pixelmed.apps.IntegerScalingOfFloatingPointPixelData

public class IntegerScalingOfFloatingPointPixelData
extends java.lang.Object

A class of static methods to interconvert floating point pixel data to scaled integer values.

Constructor Summary

Constructors

Constructor and Description
IntegerScalingOfFloatingPointPixelData()

Method Summary

Modifier and Type	Method and Description
static void	main(java.lang.String[] arg) Read a DICOM image input format file and convert floating point pixel data to scaled or truncated integer values or vice versa.
static void	performIntegerScaling(java.lang.String inputFileName, java.lang.String outputFileName, boolean truncate) Read a DICOM image with grayscale floating point PixelData and either scales it to integer values sufficient to represent the dynamic range or trunctates the floating point values to unsigned short integers.
static void	reportOnRoundTrip(double input, double slope, double intercept, java.lang.String message)
static void	reverseIntegerScaling(java.lang.String inputFileName, java.lang.String outputFileName, boolean toDouble) Read a DICOM image with grayscale integer PixelData and scale it to single or double length floating point values based on the Rescale Slope and Intercept.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IntegerScalingOfFloatingPointPixelData

public IntegerScalingOfFloatingPointPixelData()

Method Detail

main

public static void main(java.lang.String[] arg)

Read a DICOM image input format file and convert floating point pixel data to scaled or truncated integer values or vice versa.

Parameters:

arg - two or three parameters, an optional direction argument (toFloat|toInt|toIntTruncate, case insensitive, defaults to toInt), the inputFile, and the outputFile

performIntegerScaling

public static void performIntegerScaling(java.lang.String inputFileName,
                                         java.lang.String outputFileName,
                                         boolean truncate)
                                  throws DicomException,
                                         java.io.FileNotFoundException,
                                         java.io.IOException

Read a DICOM image with grayscale floating point PixelData and either scales it to integer values sufficient to represent the dynamic range or trunctates the floating point values to unsigned short integers.

The dynamic range of the input is mapped to the full range of the short unsigned integer output pixel values (0 to 65535)

The scaling values are recorded in Rescale Slope and Intercept.

Parameters:

inputFileName - the input file name

outputFileName - the output file name

truncate - truncate the floating point pixel values rather than scaling them to the maximum dynamic range

Throws:

DicomException

java.io.FileNotFoundException

java.io.IOException

reportOnRoundTrip

public static void reportOnRoundTrip(double input,
                                     double slope,
                                     double intercept,
                                     java.lang.String message)

reverseIntegerScaling

public static void reverseIntegerScaling(java.lang.String inputFileName,
                                         java.lang.String outputFileName,
                                         boolean toDouble)
                                  throws DicomException,
                                         java.io.FileNotFoundException,
                                         java.io.IOException

Read a DICOM image with grayscale integer PixelData and scale it to single or double length floating point values based on the Rescale Slope and Intercept.

Parameters:

inputFileName - the input file name

outputFileName - the output file name

toDouble - if true make double else float pixel values

Throws:

DicomException

java.io.FileNotFoundException

java.io.IOException