Examples of java.awt.color.ColorSpace

java.awt.color.ColorSpace

3.org/pub/WWW/Graphics/Color/sRGB.html"> http://www.w3.org/pub/WWW/Graphics/Color/sRGB.html .

The purpose of the methods to transform to/from the well-defined CIEXYZ color space is to support conversions between any two color spaces at a reasonably high degree of accuracy. It is expected that particular implementations of subclasses of ColorSpace (e.g. ICC_ColorSpace) will support high performance conversion based on underlying platform color management systems.

The CS_CIEXYZ space used by the toCIEXYZ/fromCIEXYZ methods can be described as follows:

       CIEXYZ       viewing illuminance: 200 lux       viewing white point: CIE D50       media white point: "that of a perfectly reflecting diffuser" -- D50        media black point: 0 lux or 0 Reflectance       flare: 1 percent       surround: 20percent of the media white point       media description: reflection print (i.e., RLAB, Hunt viewing media)       note: For developers creating an ICC profile for this conversion             space, the following is applicable.  Use a simple Von Kries             white point adaptation folded into the 3X3 matrix parameters             and fold the flare and surround effects into the three             one-dimensional lookup tables (assuming one uses the minimal             model for monitors).

@see ICC_ColorSpace @version 10 Feb 1997

        return ret;
    }


    /** {@inheritDoc} */
    public float[] toRGB(float[] colorvalue) {
        ColorSpace sRGB = ColorSpace.getInstance(ColorSpace.CS_sRGB);
        return sRGB.fromCIEXYZ(this.xyz);
    }

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    }


    private static void prepareColorSpace(PSGenerator gen, ColorModel cm) throws IOException {
        //Prepare color space
        if ((cm instanceof IndexColorModel)) {
            ColorSpace cs = cm.getColorSpace();
            IndexColorModel im = (IndexColorModel)cm;
            gen.write("[/Indexed " + getColorSpaceName(cs));
            int c = im.getMapSize();
            int hival = c - 1;
            if (hival > 4095) {

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     * @param base a base URI to resolve relative URIs
     * @param iccProfileSrc ICC Profile source to return a ColorSpace for
     * @return ICC ColorSpace object or null if ColorSpace could not be created 
     */
    public ColorSpace get(String base, String iccProfileSrc) {
        ColorSpace colorSpace = null;
        if (!colorSpaceMap.containsKey(base + iccProfileSrc)) {
            try {
                ICC_Profile iccProfile = null;
                // First attempt to use the FOP URI resolver to locate the ICC
                // profile

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    (int dataType, int numBands,
     boolean isAlphaPremultiplied, int transparency) {


        ComponentColorModel ccm = null;
        int[] RGBBits = null;
        ColorSpace cs = null;
        switch(numBands) {
            case 2: // gray+alpha
                cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
                break;
            case 4: // RGB+alpha

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                                              srcSM.getHeight());
    }


    public static ColorModel makeColorModel(CachableRed cr, SampleModel sm) {
        ColorModel srcCM = cr.getColorModel();
        ColorSpace cs    = srcCM.getColorSpace();


        int bands = sm.getNumBands();


        int bits;
        int dt = sm.getDataType();

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              src.getTileGridYOffset(),
              null);


        ColorModel srcCM = src.getColorModel();
        if (srcCM == null) return;
        ColorSpace srcCS = srcCM.getColorSpace();
        if (srcCS == ColorSpace.getInstance(ColorSpace.CS_sRGB))
            srcIssRGB = true;
    }

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     * provided by the Java class library.
     * @param profile the color profile to check
     * @return true if it is the default sRGB profile
     */
    public static boolean isDefaultsRGB(ICC_Profile profile) {
        ColorSpace sRGB = ColorSpace.getInstance(ColorSpace.CS_sRGB);
        ICC_Profile sRGBProfile = null;
        if (sRGB instanceof ICC_ColorSpace) {
            sRGBProfile = ((ICC_ColorSpace)sRGB).getProfile();
        }
        return profile == sRGBProfile;

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    }


    /** {@inheritDoc} */
    @Override
    public float[] fromRGB(float[] rgbvalue) {
        ColorSpace sRGB = ColorSpace.getInstance(ColorSpace.CS_sRGB);
        float[] xyz = sRGB.toCIEXYZ(rgbvalue);
        return fromCIEXYZ(xyz);
    }

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    }


    /** {@inheritDoc} */
    @Override
    public float[] toRGB(float[] colorvalue) {
        ColorSpace sRGB = ColorSpace.getInstance(ColorSpace.CS_sRGB);
        float[] xyz = toCIEXYZ(colorvalue);
        return sRGB.fromCIEXYZ(xyz);
    }

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     * @return    An equivilant image to <tt>src</tt> who's data is in
     *            linear sRGB.
     */
    public static CachableRed convertToLsRGB(CachableRed src) {
        ColorModel cm = src.getColorModel();
        ColorSpace cs = cm.getColorSpace();
        if (cs == ColorSpace.getInstance(ColorSpace.CS_LINEAR_RGB))
            return src;


        return new Any2LsRGBRed(src);
    }

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