Examples with ContrastEnhancement org.opengis.style.ContrastEnhancement used on opensource projects

Example 1 with ContrastEnhancement

use of org.opengis.style.ContrastEnhancement in project geotoolkit by Geomatys.

the class RasterSymbolizerRenderer method applyContrastEnhancement.

/**
 * Returns contrast enhancement modified image.
 *
 * @param image worked image.
 * @param styleElement the {@link RasterSymbolizer} which contain contrast enhancement properties.
 * @return contrast enhancement modified image.
 * @throws PortrayalException if problem during gamma value application
 * @see #brigthen(java.awt.image.RenderedImage, int)
 */
private static RenderedImage applyContrastEnhancement(RenderedImage image, final RasterSymbolizer styleElement) throws PortrayalException {
    ensureNonNull("image", image);
    ensureNonNull("styleElement", styleElement);
    // -- contrast enhancement -------------------
    final ContrastEnhancement ce = styleElement.getContrastEnhancement();
    if (ce != null && image.getColorModel() instanceof ComponentColorModel) {
        // histogram/normalize adjustment ----------------------------------
        final ContrastMethod method = ce.getMethod();
        if (ContrastMethod.HISTOGRAM.equals(method)) {
            image = equalize(image);
        } else if (ContrastMethod.NORMALIZE.equals(method)) {
            image = normalize(image);
        }
        // gamma correction ------------------------------------------------
        final Double gamma = doubleValue(ce.getGammaValue());
        if (gamma != null && gamma != 1) {
            // Specification : page 35
            // A “GammaValue” tells how much to brighten (values greater than 1.0) or dim (values less than 1.0) an image.
            image = brigthen(image, (int) ((gamma - 1) * 255f));
        }
    }
    return image;
}

Example 2 with ContrastEnhancement

use of org.opengis.style.ContrastEnhancement in project geotoolkit by Geomatys.

the class Tester method createRasterSymbolizer.

private static RasterSymbolizer createRasterSymbolizer() {
    String name = "Raster symbolizer name";
    Description desc = STYLE_FACTORY.description("Raster symbolizer title", "Raster symbolizer description");
    Unit uom = Units.METRE;
    String geom = "geom";
    Expression opacity = FILTER_FACTORY.literal(0.5);
    ChannelSelection selection = STYLE_FACTORY.channelSelection(STYLE_FACTORY.selectedChannelType("chanel2", FILTER_FACTORY.literal(1)));
    OverlapBehavior overlap = OverlapBehavior.RANDOM;
    ColorMap colorMap = STYLE_FACTORY.colorMap();
    ContrastEnhancement enchance = STYLE_FACTORY.contrastEnhancement();
    ShadedRelief relief = STYLE_FACTORY.shadedRelief(FILTER_FACTORY.literal(3), true);
    Symbolizer outline = createLineSymbolizer();
    return STYLE_FACTORY.rasterSymbolizer(name, geom, desc, uom, opacity, selection, overlap, colorMap, enchance, relief, outline);
}

Example 3 with ContrastEnhancement

use of org.opengis.style.ContrastEnhancement in project geotoolkit by Geomatys.

the class XMLUtilitiesTest method createRasterSymbolizer.

private static RasterSymbolizer createRasterSymbolizer() {
    String name = "Raster symbolizer name";
    Description desc = STYLE_FACTORY.description("Raster symbolizer title", "Raster symbolizer description");
    Unit uom = Units.METRE;
    String geom = "geom";
    Expression opacity = FILTER_FACTORY.literal(0.5);
    ChannelSelection selection = STYLE_FACTORY.channelSelection(STYLE_FACTORY.selectedChannelType("chanel2", FILTER_FACTORY.literal(1)));
    OverlapBehavior overlap = OverlapBehavior.RANDOM;
    ColorMap colorMap = STYLE_FACTORY.colorMap();
    ContrastEnhancement enchance = STYLE_FACTORY.contrastEnhancement();
    ShadedRelief relief = STYLE_FACTORY.shadedRelief(FILTER_FACTORY.literal(3), true);
    Symbolizer outline = createLineSymbolizer();
    return STYLE_FACTORY.rasterSymbolizer(name, geom, desc, uom, opacity, selection, overlap, colorMap, enchance, relief, outline);
}

Example 4 with ContrastEnhancement

use of org.opengis.style.ContrastEnhancement in project geotoolkit by Geomatys.

the class Styles method colorCategorizeRaster.

public static MutableStyle colorCategorizeRaster() {
    final Map<Expression, Expression> values = new HashMap<>();
    values.put(StyleConstants.CATEGORIZE_LESS_INFINITY, SF.literal(new Color(46, 154, 88)));
    values.put(FF.literal(1003), SF.literal(new Color(46, 154, 88)));
    values.put(FF.literal(1800), SF.literal(new Color(251, 255, 128)));
    values.put(FF.literal(2800), SF.literal(new Color(224, 108, 31)));
    values.put(FF.literal(3500), SF.literal(new Color(200, 55, 55)));
    values.put(FF.literal(4397), SF.literal(new Color(215, 244, 244)));
    final Expression lookup = DEFAULT_CATEGORIZE_LOOKUP;
    final Literal fallback = DEFAULT_FALLBACK;
    final Expression function = SF.categorizeFunction(lookup, values, ThreshholdsBelongTo.SUCCEEDING, fallback);
    final ChannelSelection selection = null;
    final Expression opacity = LITERAL_ONE_FLOAT;
    final OverlapBehavior overlap = OverlapBehavior.LATEST_ON_TOP;
    final ColorMap colorMap = SF.colorMap(function);
    final ContrastEnhancement enchance = SF.contrastEnhancement(LITERAL_ONE_FLOAT, ContrastMethod.NONE);
    final ShadedRelief relief = SF.shadedRelief(LITERAL_ONE_FLOAT);
    final Symbolizer outline = null;
    final Unit uom = Units.POINT;
    final String geom = DEFAULT_GEOM;
    final String name = "raster symbol name";
    final Description desc = DEFAULT_DESCRIPTION;
    final RasterSymbolizer symbol = SF.rasterSymbolizer(name, geom, desc, uom, opacity, selection, overlap, colorMap, enchance, relief, outline);
    return SF.style(symbol);
}

Example 5 with ContrastEnhancement

use of org.opengis.style.ContrastEnhancement in project geotoolkit by Geomatys.

the class Styles method colorInterpolationRaster.

public static MutableStyle colorInterpolationRaster() {
    final List<InterpolationPoint> values = new ArrayList<>();
    values.add(SF.interpolationPoint(1003, SF.literal(new Color(46, 154, 88))));
    values.add(SF.interpolationPoint(1800, SF.literal(new Color(251, 255, 128))));
    values.add(SF.interpolationPoint(2800, SF.literal(new Color(224, 108, 31))));
    values.add(SF.interpolationPoint(3500, SF.literal(new Color(200, 55, 55))));
    values.add(SF.interpolationPoint(4397, SF.literal(new Color(215, 244, 244))));
    final Expression lookup = DEFAULT_CATEGORIZE_LOOKUP;
    final Literal fallback = DEFAULT_FALLBACK;
    final Expression function = SF.interpolateFunction(lookup, values, Method.COLOR, Mode.LINEAR, fallback);
    final ChannelSelection selection = null;
    final Expression opacity = LITERAL_ONE_FLOAT;
    final OverlapBehavior overlap = OverlapBehavior.LATEST_ON_TOP;
    final ColorMap colorMap = SF.colorMap(function);
    final ContrastEnhancement enchance = SF.contrastEnhancement(LITERAL_ONE_FLOAT, ContrastMethod.NONE);
    final ShadedRelief relief = SF.shadedRelief(LITERAL_ONE_FLOAT);
    final Symbolizer outline = null;
    final Unit uom = Units.POINT;
    final String geom = DEFAULT_GEOM;
    final String name = "raster symbol name";
    final Description desc = DEFAULT_DESCRIPTION;
    final RasterSymbolizer symbol = SF.rasterSymbolizer(name, geom, desc, uom, opacity, selection, overlap, colorMap, enchance, relief, outline);
    return SF.style(symbol);
}