/*
* #%L
* BSD implementations of Bio-Formats readers and writers
* %%
* Copyright (C) 2005 - 2015 Open Microscopy Environment:
* - Board of Regents of the University of Wisconsin-Madison
* - Glencoe Software, Inc.
* - University of Dundee
* %%
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* modification, are permitted provided that the following conditions are met:
*
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* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
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*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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package loci.formats.tiff;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Map;
import loci.common.enumeration.CodedEnum;
import loci.common.enumeration.EnumException;
/**
* Utility class for working with TIFF photometric interpretations.
*
* @author Curtis Rueden ctrueden at wisc.edu
* @author Eric Kjellman egkjellman at wisc.edu
* @author Melissa Linkert melissa at glencoesoftware.com
* @author Chris Allan callan at blackcat.ca
*/
public enum PhotoInterp implements CodedEnum {
WHITE_IS_ZERO(0, "WhiteIsZero", "Monochrome"),
BLACK_IS_ZERO(1, "BlackIsZero", "Monochrome"),
RGB(2, "RGB", "RGB"),
RGB_PALETTE(3, "Palette", "Monochrome"),
TRANSPARENCY_MASK(4, "Transparency Mask", "RGB"),
CMYK(5, "CMYK", "CMYK"),
Y_CB_CR(6, "YCbCr", "RGB"),
CIE_LAB(8, "CIELAB", "RGB"),
CFA_ARRAY(32803, "Color Filter Array", "RGB");
/** Default luminance values for YCbCr data. */
public static final float LUMA_RED = 0.299f;
public static final float LUMA_GREEN = 0.587f;
public static final float LUMA_BLUE = 0.114f;
/** Code for the IFD type in the actual TIFF file. */
private int code;
/** Given name of the photometric interpretation. */
private String name;
/** Metadata type of the photometric interpretation. */
private String metadataType;
private static final Map<Integer,PhotoInterp> lookup =
new HashMap<Integer,PhotoInterp>();
/** Reverse lookup of code to IFD type enumerate value. */
static {
for(PhotoInterp v : EnumSet.allOf(PhotoInterp.class)) {
lookup.put(v.getCode(), v);
}
}
// -- Constructor --
/**
* Default constructor.
* @param code Integer "code" for the photometric interpretation.
* @param name Given name of the photometric interpretation.
* @param metadataType Metadata type of the photometric interpretation.
*/
private PhotoInterp(int code, String name, String metadataType) {
this.code = code;
this.name = name;
this.metadataType = metadataType;
}
// -- PhotoInterp methods --
/**
* Retrieves a photometric interpretation by reverse lookup of its "code".
* @param code The code to look up.
* @return The <code>PhotoInterp</code> instance for the
* <code>code</code> or <code>null</code> if it does not exist.
*/
public static PhotoInterp get(int code) {
PhotoInterp toReturn = lookup.get(code);
if (toReturn == null) {
throw new EnumException("Unable to find PhotoInterp with code: " + code);
}
return toReturn;
}
/* (non-Javadoc)
* @see loci.common.CodedEnum#getCode()
*/
@Override
public int getCode() {
return code;
}
/**
* Retrieves the given name of the photometric interpretation.
* @return See above.
*/
public String getName() {
return name;
}
/**
* Retrieves the metadata type of the photometric interpretation.
* @return See above.
*/
public String getMetadataType() {
return metadataType;
}
}