List of retainLastBand() Examples

Examples of retainLastBand()

org.geotools.image.ImageWorker.retainLastBand()
Retains unconditionally the last band of {@linkplain #image}. All other bands (if any) are discarded without any further processing.
It is worth to point out that we use the true number of bands rather than the number of color components. This means that if we apply this method on a colormapped image we get back the image itself untouched since it originally contains 1 band although the color components are 3 or 4 as per the attached colormap. @return this {@link ImageWorker}. @see #getNumBands @see #retainBands @see BandSelectDescriptor

Examples of org.geotools.image.ImageWorker.retainLastBand()

                img = w.getRenderedImage();
            }
            boolean hasAlpha = img.getColorModel() != null ? img.getColorModel().hasAlpha() : false;
            if (hasAlpha) {
                alphaChannel |= hasAlpha;
                alpha[i] = w.retainLastBand().getPlanarImage();
            }
        }
        // If at least one image contains Alpha channel, it is used for the mosaic
        if (alphaChannel) {
            block.setParameter("sourceAlpha", alpha);

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Examples of org.geotools.image.ImageWorker.retainLastBand()

            }
            
            // collect alpha channels if we have them in order to reuse them later on for mosaic operation
            if (cm.hasAlpha() && bgColorIndex == -1) {
                worker.forceComponentColorModel();
                final RenderedImage alpha = worker.retainLastBand().getRenderedImage();
                alphaChannels = new PlanarImage[] { PlanarImage.wrapRenderedImage(alpha) };
            } 
        }
        
        //

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Examples of org.geotools.image.ImageWorker.retainLastBand()

                        ccm.getTransferType() == DataBuffer.TYPE_FLOAT 
                        || ccm.getTransferType() == DataBuffer.TYPE_UNDEFINED)) {
                    // expand to RGB, this is not a case we can optimize
                    final ImageWorker iw = new ImageWorker(image);
                    if (hasAlpha) {
                        final RenderedImage alpha = iw.retainLastBand().getRenderedImage();
                        // get first band
                        final RenderedImage gray = new ImageWorker(image).retainFirstBand()
                                .getRenderedImage();
                        image = new ImageWorker(gray).bandMerge(3).addBand(alpha, false)
                                .forceComponentColorModel().forceColorSpaceRGB().getRenderedImage();

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Examples of org.geotools.image.ImageWorker.retainLastBand()

                        bgValues = new double[] { mapToGrayColor(bgColor, ccm) };
                    }
                } else {
                    // extract the alpha channel
                    final ImageWorker iw = new ImageWorker(image);
                    final RenderedImage alpha = iw.retainLastBand().getRenderedImage();
                    alphaChannels = new PlanarImage[] { PlanarImage.wrapRenderedImage(alpha) };
                    
                    if (transparent) {
                        bgValues = new double[] { mapToGrayColor(bgColor, ccm), 0 };
                    } else {

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Examples of org.geotools.image.ImageWorker.retainLastBand()


            if(bgValues == null) {
                if (hasAlpha) {
                    // get alpha
                  final ImageWorker iw = new ImageWorker(image);
                    final RenderedImage alpha = iw.retainLastBand().getRenderedImage();
                    alphaChannels = new PlanarImage[] { PlanarImage.wrapRenderedImage(alpha) };
    
                    if (transparent) {
                        bgValues = new double[] { bgColor.getRed(), bgColor.getGreen(),
                                bgColor.getBlue(), 0 };

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Examples of org.geotools.image.ImageWorker.retainLastBand()

            }
            
            //collect alpha channels if we have them in order to reuse them later on for mosaic operation
            if (cm.hasAlpha()) {
                worker.forceComponentColorModel();
                final RenderedImage alpha =worker.retainLastBand().getRenderedImage();
                alphaChannels = new PlanarImage[] { PlanarImage.wrapRenderedImage(alpha) };
            } 
        }
        
        //

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Examples of org.geotools.image.ImageWorker.retainLastBand()

                        ccm.getTransferType() == DataBuffer.TYPE_FLOAT 
                        || ccm.getTransferType() == DataBuffer.TYPE_UNDEFINED)) {
                    // expand to RGB, this is not a case we can optimize
                    final ImageWorker iw = new ImageWorker(image);
                    if (hasAlpha) {
                        final RenderedImage alpha = iw.retainLastBand().getRenderedImage();
                        // get first band
                        final RenderedImage gray = new ImageWorker(image).retainFirstBand()
                                .getRenderedImage();
                        image = new ImageWorker(gray).bandMerge(3).addBand(alpha, false)
                                .forceComponentColorModel().forceColorSpaceRGB().getRenderedImage();

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Examples of org.geotools.image.ImageWorker.retainLastBand()

                        bgValues = new double[] { mapToGrayColor(bgColor, ccm) };
                    }
                } else {
                    // extract the alpha channel
                    final ImageWorker iw = new ImageWorker(image);
                    final RenderedImage alpha = iw.retainLastBand().getRenderedImage();
                    alphaChannels = new PlanarImage[] { PlanarImage.wrapRenderedImage(alpha) };
                    
                    if (transparent) {
                        bgValues = new double[] { mapToGrayColor(bgColor, ccm), 0 };
                    } else {

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Examples of org.geotools.image.ImageWorker.retainLastBand()


            if(bgValues == null) {
                if (hasAlpha) {
                    // get alpha
                  final ImageWorker iw = new ImageWorker(image);
                    final RenderedImage alpha = iw.retainLastBand().getRenderedImage();
                    alphaChannels = new PlanarImage[] { PlanarImage.wrapRenderedImage(alpha) };
    
                    if (transparent) {
                        bgValues = new double[] { bgColor.getRed(), bgColor.getGreen(),
                                bgColor.getBlue(), 0 };

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