List of usage examples for java.awt.image ColorConvertOp filter
public final WritableRaster filter(Raster src, WritableRaster dest)
From source file:org.tinymediamanager.core.ImageCache.java
/** * Scale image to fit in the given width. * /*from w w w .j a va 2 s .c o m*/ * @param file * the original image file * @param width * the width * @return the input stream * @throws IOException * Signals that an I/O exception has occurred. * @throws InterruptedException */ public static InputStream scaleImage(Path file, int width) throws IOException, InterruptedException { BufferedImage originalImage = null; try { originalImage = createImage(file); } catch (Exception e) { throw new IOException(e.getMessage()); } Point size = new Point(); size.x = width; size.y = size.x * originalImage.getHeight() / originalImage.getWidth(); // BufferedImage scaledImage = Scaling.scale(originalImage, size.x, size.y); BufferedImage scaledImage = Scalr.resize(originalImage, Scalr.Method.QUALITY, Scalr.Mode.AUTOMATIC, size.x, size.y, Scalr.OP_ANTIALIAS); originalImage = null; ImageWriter imgWrtr = null; ImageWriteParam imgWrtrPrm = null; // here we have two different ways to create our thumb // a) a scaled down jpg/png (without transparency) which we have to modify since OpenJDK cannot call native jpg encoders // b) a scaled down png (with transparency) which we can store without any more modifying as png if (hasTransparentPixels(scaledImage)) { // transparent image -> png imgWrtr = ImageIO.getImageWritersByFormatName("png").next(); imgWrtrPrm = imgWrtr.getDefaultWriteParam(); } else { // non transparent image -> jpg // convert to rgb BufferedImage rgb = new BufferedImage(scaledImage.getWidth(), scaledImage.getHeight(), BufferedImage.TYPE_INT_RGB); ColorConvertOp xformOp = new ColorConvertOp(null); xformOp.filter(scaledImage, rgb); imgWrtr = ImageIO.getImageWritersByFormatName("jpg").next(); imgWrtrPrm = imgWrtr.getDefaultWriteParam(); imgWrtrPrm.setCompressionMode(JPEGImageWriteParam.MODE_EXPLICIT); imgWrtrPrm.setCompressionQuality(0.80f); scaledImage = rgb; } ByteArrayOutputStream baos = new ByteArrayOutputStream(); ImageOutputStream output = ImageIO.createImageOutputStream(baos); imgWrtr.setOutput(output); IIOImage outputImage = new IIOImage(scaledImage, null, null); imgWrtr.write(null, outputImage, imgWrtrPrm); imgWrtr.dispose(); scaledImage = null; byte[] bytes = baos.toByteArray(); output.flush(); output.close(); baos.close(); return new ByteArrayInputStream(bytes); }
From source file:org.tinymediamanager.core.ImageCache.java
/** * Cache image.// w ww . jav a 2s . com * * @param mf * the media file * @return the file the cached file * @throws Exception */ public static Path cacheImage(Path originalFile) throws Exception { MediaFile mf = new MediaFile(originalFile); Path cachedFile = ImageCache.getCacheDir() .resolve(getMD5(originalFile.toString()) + "." + Utils.getExtension(originalFile)); if (!Files.exists(cachedFile)) { // check if the original file exists && size > 0 if (!Files.exists(originalFile)) { throw new FileNotFoundException("unable to cache file: " + originalFile + "; file does not exist"); } if (Files.size(originalFile) == 0) { throw new EmptyFileException(originalFile); } // recreate cache dir if needed // rescale & cache BufferedImage originalImage = null; try { originalImage = createImage(originalFile); } catch (Exception e) { throw new Exception("cannot create image - file seems not to be valid? " + originalFile); } // calculate width based on MF type int desiredWidth = originalImage.getWidth(); // initialize with fallback switch (mf.getType()) { case FANART: if (originalImage.getWidth() > 1000) { desiredWidth = 1000; } break; case POSTER: if (originalImage.getHeight() > 500) { desiredWidth = 350; } break; case EXTRAFANART: case THUMB: case BANNER: case GRAPHIC: desiredWidth = 300; break; default: break; } // special handling for movieset-fanart or movieset-poster if (mf.getFilename().startsWith("movieset-fanart") || mf.getFilename().startsWith("movieset-poster")) { if (originalImage.getWidth() > 1000) { desiredWidth = 1000; } } Point size = calculateSize(desiredWidth, (int) (originalImage.getHeight() / 1.5), originalImage.getWidth(), originalImage.getHeight(), true); BufferedImage scaledImage = null; if (Globals.settings.getImageCacheType() == CacheType.FAST) { // scale fast scaledImage = Scalr.resize(originalImage, Scalr.Method.BALANCED, Scalr.Mode.FIT_EXACT, size.x, size.y); } else { // scale with good quality scaledImage = Scalr.resize(originalImage, Scalr.Method.QUALITY, Scalr.Mode.FIT_EXACT, size.x, size.y); } originalImage = null; ImageWriter imgWrtr = null; ImageWriteParam imgWrtrPrm = null; // here we have two different ways to create our thumb // a) a scaled down jpg/png (without transparency) which we have to modify since OpenJDK cannot call native jpg encoders // b) a scaled down png (with transparency) which we can store without any more modifying as png if (hasTransparentPixels(scaledImage)) { // transparent image -> png imgWrtr = ImageIO.getImageWritersByFormatName("png").next(); imgWrtrPrm = imgWrtr.getDefaultWriteParam(); } else { // non transparent image -> jpg // convert to rgb BufferedImage rgb = new BufferedImage(scaledImage.getWidth(), scaledImage.getHeight(), BufferedImage.TYPE_INT_RGB); ColorConvertOp xformOp = new ColorConvertOp(null); xformOp.filter(scaledImage, rgb); imgWrtr = ImageIO.getImageWritersByFormatName("jpg").next(); imgWrtrPrm = imgWrtr.getDefaultWriteParam(); imgWrtrPrm.setCompressionMode(JPEGImageWriteParam.MODE_EXPLICIT); imgWrtrPrm.setCompressionQuality(0.80f); scaledImage = rgb; } FileImageOutputStream output = new FileImageOutputStream(cachedFile.toFile()); imgWrtr.setOutput(output); IIOImage image = new IIOImage(scaledImage, null, null); imgWrtr.write(null, image, imgWrtrPrm); imgWrtr.dispose(); output.flush(); output.close(); scaledImage = null; } if (!Files.exists(cachedFile)) { throw new Exception("unable to cache file: " + originalFile); } return cachedFile; }
From source file:paintbasico2d.VentanaPrincipal.java
private void EscalaGrisesActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_EscalaGrisesActionPerformed // TODO add your handling code here: VentanaInterna vi = (VentanaInterna) escritorio.getSelectedFrame(); if (vi != null) { vi.getLienzo().setImage(vi.getLienzo().getImage()); if (vi.getLienzo().getImage() != null) { ICC_Profile icc = ICC_Profile.getInstance(ColorSpace.CS_GRAY); ColorSpace cs = new ICC_ColorSpace(icc); ColorConvertOp conver = new ColorConvertOp(cs, null); BufferedImage imgdest = conver.filter(vi.getLienzo().getImage(), null); vi.getLienzo().setImage(imgdest); }//from w w w. ja va 2s .c o m } repaint(); }
From source file:pl.edu.icm.visnow.lib.utils.ImageUtilities.java
public static BufferedImage convertToARGB(BufferedImage img) { if (img == null) { return null; }/* w w w. j a va 2 s . c om*/ BufferedImage out = new BufferedImage(img.getWidth(), img.getHeight(), BufferedImage.TYPE_INT_ARGB); ColorConvertOp cco = new ColorConvertOp(img.getColorModel().getColorSpace(), out.getColorModel().getColorSpace(), null); cco.filter(img, out); return out; }