public static void main(String[] args) {
final File swapDir = new File("swap");
swapDir.mkdir();
final Logger logger = Logger.getAnonymousLogger();
final ConsoleHandler consoleHandler = new ConsoleHandler();
consoleHandler.setLevel(Level.ALL);
logger.addHandler(consoleHandler);
logger.setLevel(Level.ALL);
final DefaultSwapSpace swapSpace = new DefaultSwapSpace(swapDir, logger);
final SwappingTileCache tileCache = new SwappingTileCache(64 * M, swapSpace);
JAI.getDefaultInstance().setTileCache(tileCache);
RenderedImage sourceImage;
if (args.length == 0) {
sourceImage = DFTTestMain.createTestImage(512, 512);
} else {
sourceImage = FileLoadDescriptor.create(args[0], null, false, null);
}
sourceImage = DFTConvolveRIF.toFloat(sourceImage, null);
BorderExtender extender = BorderExtender.createInstance(BorderExtender.BORDER_COPY);
RenderingHints hints = new RenderingHints(JAI.KEY_BORDER_EXTENDER, extender);
KernelJAI kernel = createBlurrKernel(33);
RenderedOp convolvedImage = ConvolveDescriptor.create(sourceImage, kernel, hints);
RenderedOp dftConvolvedImage = DFTConvolveDescriptor.create(sourceImage, kernel, null, hints);
RenderedOp deltaImage =
MultiplyConstDescriptor.create(
SubtractDescriptor.create(convolvedImage, dftConvolvedImage, null),
new double[] {2},
null);
showImage(sourceImage, "sourceImage");
showImage(convolvedImage, "convolvedImage");
showImage(dftConvolvedImage, "dftConvolvedImage");
showImage(deltaImage, "deltaImage");
final Object o = dftConvolvedImage.getProperty("kernelFT");
System.out.println("o = " + o);
System.out.println("Kernel\tConvolve\tDFTConvolve\tPerfGain");
for (int i = 3; i <= 201; i += 2) {
KernelJAI k = createBlurrKernel(i);
double t1 = getRenderTime(ConvolveDescriptor.create(sourceImage, k, hints));
double t2 = getRenderTime(DFTConvolveDescriptor.create(sourceImage, k, null, hints));
System.out.println(i + "\t" + t1 + "\t" + t2 + "\t" + t1 / t2);
}
}
public static void main(String[] args) {
String sourceFile = args[0];
int m = Integer.parseInt(args[1]);
String format = sourceFile.substring(1 + sourceFile.lastIndexOf('.'));
String targetBase = sourceFile.substring(0, sourceFile.lastIndexOf('.'));
String targetFile0 = targetBase + "_" + m + "_0." + format;
String targetFile1 = targetBase + "_" + m + "_1." + format;
String targetFile2 = targetBase + "_" + m + "_2." + format;
KernelJAI gaussKernel = createGaussianKernel(m);
dumpKernelData("Gaussian", gaussKernel);
KernelJAI distKernel = createDistancesKernel(m);
dumpKernelData("Distances", distKernel);
RenderedOp source = FileLoadDescriptor.create(sourceFile, null, true, null);
source = BandSelectDescriptor.create(source, new int[1], null);
System.out.println("Writing " + targetFile0);
FileStoreDescriptor.create(source, targetFile0, format, null, false, null);
long t1 = System.currentTimeMillis();
System.out.println("Computing " + targetFile1);
BorderExtender borderExtender = BorderExtender.createInstance(BorderExtender.BORDER_COPY);
RenderedOp target1 =
ConvolveDescriptor.create(
source, gaussKernel, new RenderingHints(JAI.KEY_BORDER_EXTENDER, borderExtender));
RenderedOp mask = ClampDescriptor.create(source, new double[] {0}, new double[] {1}, null);
mask = MultiplyConstDescriptor.create(mask, new double[] {255}, null);
mask = NotDescriptor.create(mask, null);
mask = ClampDescriptor.create(mask, new double[] {0}, new double[] {1}, null);
target1 = MultiplyDescriptor.create(target1, mask, null);
target1 = AddDescriptor.create(target1, source, null);
System.out.println("Writing " + targetFile1);
FileStoreDescriptor.create(target1, targetFile1, format, null, false, null);
System.out.println("Done in " + (System.currentTimeMillis() - t1) + " ms");
long t2 = System.currentTimeMillis();
System.out.println("Computing " + targetFile2);
BufferedImage target2 = convolveICOL(source, gaussKernel, distKernel);
System.out.println("Writing " + targetFile2);
FileStoreDescriptor.create(target2, targetFile2, format, null, false, null);
System.out.println("Done in " + (System.currentTimeMillis() - t2) + " ms");
}