Java ConvertBufferedImage类代码示例

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
@Override
public void processKinect(MultiSpectral<ImageUInt8> rgb, ImageUInt16 depth, long timeRgb, long timeDepth) {

	if( updateDisplay ) {
		ConvertBufferedImage.convertTo_U8(rgb,buffRgb);

		if( timeText >= System.currentTimeMillis() ) {
			Graphics2D g2 = buffRgb.createGraphics();
			g2.setFont(new Font(Font.MONOSPACED, Font.BOLD, 30));
			g2.setColor(Color.RED);
			g2.drawString(text,rgb.width/2-100,rgb.height/2);
		}

		gui.repaint();
	} else if( !savedImages ) {
		savedRgb.setTo(rgb);
		savedDepth.setTo(depth);
		savedImages = true;
	}
}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
protected void processRgb( FrameMode mode, ByteBuffer frame, int timestamp ) {
	if( mode.getVideoFormat() != VideoFormat.RGB ) {
		System.out.println("Bad rgb format!");
	}

	System.out.println("Got rgb! "+timestamp);

	if( outRgb == null ) {
		rgb.reshape(mode.getWidth(),mode.getHeight());
		outRgb = new BufferedImage(rgb.width,rgb.height,BufferedImage.TYPE_INT_RGB);
		guiRgb = ShowImages.showWindow(outRgb,"RGB Image");
	}

	UtilOpenKinect.bufferRgbToMsU8(frame, rgb);
	ConvertBufferedImage.convertTo_U8(rgb,outRgb);

	guiRgb.repaint();
}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
public void process() throws IOException {
	parseFrame(0);

	outRgb = new BufferedImage(rgb.getWidth(),rgb.getHeight(),BufferedImage.TYPE_INT_RGB);
	outDepth = new BufferedImage(depth.getWidth(),depth.getHeight(),BufferedImage.TYPE_INT_RGB);

	gui = new ImageGridPanel(1,2,outRgb,outDepth);
	ShowImages.showWindow(gui,"Kinect Data");

	int frame = 1;
	while( true ) {
		parseFrame(frame++);
		ConvertBufferedImage.convertTo_U8(rgb,outRgb);
		VisualizeImageData.disparity(depth, outDepth, 0, UtilOpenKinect.FREENECT_DEPTH_MM_MAX_VALUE, 0);
		gui.repaint();
		BoofMiscOps.pause(30);
	}
}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
@Override
public void processKinect(MultiSpectral<ImageUInt8> rgb, ImageUInt16 depth, long timeRgb, long timeDepth) {
	System.out.println(frameNumber+"  "+timeRgb);
	try {
		logFile.write(String.format("%10d %d %d\n",frameNumber,timeRgb,timeDepth).getBytes());
		logFile.flush();
		UtilImageIO.savePPM(rgb, String.format("log/rgb%07d.ppm", frameNumber), buffer);
		UtilOpenKinect.saveDepth(depth, String.format("log/depth%07d.depth", frameNumber), buffer);
		frameNumber++;

		if( showImage ) {
			ConvertBufferedImage.convertTo_U8(rgb,buffRgb);
			gui.repaint();
		}
	} catch (IOException e) {
		e.printStackTrace();
	}
}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
@Override
public T next() {
	if (reducedImage != null) {
		Graphics2D g2 = reducedImage.createGraphics();

		g2.scale(1.0 / factor, 1.0 / factor);
		g2.drawImage(bufferedImage, 0, 0, null);

		imageGUI = reducedImage;
	} else {
		imageGUI = bufferedImage;
	}

	image.reshape(imageGUI.getWidth(),imageGUI.getHeight());
	ConvertBufferedImage.convertFrom(imageGUI, image);
	return image;
}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
/**
 * Detects key points inside the image and computes descriptions at those points.
 */
protected double[][] extractFeaturesInternal(BufferedImage image) {
	ImageFloat32 boofcvImage = ConvertBufferedImage.convertFromSingle(image, null, ImageFloat32.class);
	// create the SIFT detector and descriptor in BoofCV v0.15
	ConfigSiftDetector conf = new ConfigSiftDetector(2, detectThreshold, maxFeaturesPerScale, 5);
	DetectDescribePoint<ImageFloat32, SurfFeature> sift = FactoryDetectDescribe.sift(null, conf, null,
			null);

	// specify the image to process
	sift.detect(boofcvImage);
	int numPoints = sift.getNumberOfFeatures();
	double[][] descriptions = new double[numPoints][SIFTLength];
	for (int i = 0; i < numPoints; i++) {
		descriptions[i] = sift.getDescription(i).getValue();
	}
	return descriptions;
}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
@Override
	public void setActiveAlgorithm(int indexFamily, String name, Object cookie) {
		if( color == null || 0 == panel.getWidth() || 0 == panel.getHeight() ) {
			return;
		}

		InterpolatePixel<T> interp = (InterpolatePixel<T>)cookie;

		scaledImage.reshape(panel.getWidth(),panel.getHeight());
		PixelTransformAffine_F32 model = DistortSupport.transformScale(scaledImage,color);
		for( int i = 0; i < color.getNumBands(); i++ )
			DistortImageOps.distortSingle(color.getBand(i),scaledImage.getBand(i),model,null,interp);

		// numerical round off error can cause the interpolation to go outside
		// of pixel value bounds
//		GeneralizedImageOps.boundImage(scaledImage,0,255);

		BufferedImage out = ConvertBufferedImage.convertTo(scaledImage,null);
		panel.setBufferedImage(out);
		panel.repaint();
	}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
private void addUndistorted(final String name, final PointTransform_F32 model) {
	// Set up image distort
	InterpolatePixel<ImageFloat32> interp = FactoryInterpolation.bilinearPixel(ImageFloat32.class);
	ImageDistort<ImageFloat32> undistorter = FactoryDistort.distort(interp, null, ImageFloat32.class);
	undistorter.setModel(new PointToPixelTransform_F32(model));

	// Fill the image with all black then render it
	GImageMiscOps.fill(undist, 0);
	DistortImageOps.distortMS(dist, undist, undistorter);

	final BufferedImage out = ConvertBufferedImage.convertTo(undist,null);

	// Add this rectified image
	SwingUtilities.invokeLater(new Runnable() {
		public void run() {
			gui.addItem(new ImagePanel(out), name);
		}});
}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
/**
 * Detects segments inside the image
 *
 * @param image Input image.
 * @param imageType Type of image processed by line detector.
 * @param derivType Type of image derivative.
 */
public static<T extends ImageSingleBand, D extends ImageSingleBand>
void detectLineSegments( BufferedImage image ,
						 Class<T> imageType ,
						 Class<D> derivType )
{
	// convert the line into a single band image
	T input = ConvertBufferedImage.convertFromSingle(image, null, imageType );

	// Comment/uncomment to try a different type of line detector
	DetectLineSegmentsGridRansac<T,D> detector = FactoryDetectLineAlgs.lineRansac(40, 30, 2.36, true, imageType, derivType);

	List<LineSegment2D_F32> found = detector.detect(input);

	// display the results
	ImageLinePanel gui = new ImageLinePanel();
	gui.setBackground(image);
	gui.setLineSegments(found);
	gui.setPreferredSize(new Dimension(image.getWidth(),image.getHeight()));

	ShowImages.showWindow(gui,"Found Line Segments");
}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
/**
 * Many operations designed to only work on {@link boofcv.struct.image.ImageSingleBand} can be applied
 * to a MultiSpectral image by feeding in each band one at a time.
 */
public static void independent( BufferedImage input ) {
	// convert the BufferedImage into a MultiSpectral
	MultiSpectral<ImageUInt8> image = ConvertBufferedImage.convertFromMulti(input,null,ImageUInt8.class);

	// declare the output blurred image
	MultiSpectral<ImageUInt8> blurred =
			new MultiSpectral<ImageUInt8>(ImageUInt8.class,image.width,image.height,image.getNumBands());
	
	// Apply Gaussian blur to each band in the image
	for( int i = 0; i < image.getNumBands(); i++ ) {
		// note that the generalized version of BlurImageOps is not being used, but the type
		// specific version.
		BlurImageOps.gaussian(image.getBand(i),blurred.getBand(i),-1,5,null);
	}
	
	// Declare the BufferedImage manually to ensure that the color bands have the same ordering on input
	// and output
	BufferedImage output = new BufferedImage(image.width,image.height,input.getType());
	ConvertBufferedImage.convertTo(blurred, output);
	ShowImages.showWindow(input,"Input");
	ShowImages.showWindow(output,"Ouput");
}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
/**
 * BufferedImage support many different image formats internally.  More often than not the order
 * of its bands are not RGB, which can cause problems when you expect it to be RGB.  A function
 * is provided that will swap the bands of a MultiSpectral image created from a BufferedImage
 * to ensure that it is in RGB ordering.
 */
public static void convertBufferedToRGB( BufferedImage input ) {

	// convert the BufferedImage into a MultiSpectral
	MultiSpectral<ImageUInt8> image = ConvertBufferedImage.convertFromMulti(input,null,ImageUInt8.class);

	int x=15,y=15;
	
	// print the value of "red" at a pixel to make it easy to see the change
	System.out.print("before: ");
	for( int i = 0; i < image.getNumBands(); i++ )
		System.out.print(image.getBand(i).get(x,y)+" ");
	System.out.println();
	
	// change the bands
	ConvertBufferedImage.orderBandsIntoRGB(image,input);

	// THe value of red should be different of the BufferedImage was not in RGB format.
	System.out.print("After:  ");
	for( int i = 0; i < image.getNumBands(); i++ )
		System.out.print(image.getBand(i).get(x,y)+" ");
	System.out.println();
}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
/**
 * Values of pixels can be read and modified by accessing the internal {@link boofcv.struct.image.ImageSingleBand}.
 */
public static void pixelAccess(  BufferedImage input ) {
	// convert the BufferedImage into a MultiSpectral
	MultiSpectral<ImageUInt8> image = ConvertBufferedImage.convertFromMulti(input,null,ImageUInt8.class);

	int x = 10, y = 10;

	// to access a pixel you first access the gray image for the each band
	for( int i = 0; i < image.getNumBands(); i++ )
		System.out.println("Original "+i+" = "+image.getBand(i).get(x,y));

	// change the value in each band
	for( int i = 0; i < image.getNumBands(); i++ )
		image.getBand(i).set(x, y, 100 + i);

	// to access a pixel you first access the gray image for the each band
	for( int i = 0; i < image.getNumBands(); i++ )
		System.out.println("Result   "+i+" = "+image.getBand(i).get(x,y));
}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
/**
 * There is no real perfect way that everyone agrees on for converting color images into gray scale
 * images.  Two examples of how to convert a MultiSpectral image into a gray scale image are shown 
 * in this example.
 */
public static void convertToGray( BufferedImage input ) {
	// convert the BufferedImage into a MultiSpectral
	MultiSpectral<ImageUInt8> image = ConvertBufferedImage.convertFromMulti(input,null,ImageUInt8.class);
	
	ImageUInt8 gray = new ImageUInt8( image.width,image.height);
	
	// creates a gray scale image by averaging intensity value across pixels
	GPixelMath.averageBand(image, gray);
	BufferedImage outputAve = ConvertBufferedImage.convertTo(gray,null);

	// create an output image just from the first band
	BufferedImage outputBand0 = ConvertBufferedImage.convertTo(image.getBand(0),null);

	ShowImages.showWindow(outputAve,"Average");
	ShowImages.showWindow(outputBand0,"Band 0");
}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
/**
 * Updates and displays the pyramid.
 */
public void process( BufferedImage image ) {
	T input = ConvertBufferedImage.convertFromSingle(image, null, imageType);
	pyramid.process(input);

	ImagePyramidPanel<T> gui = new ImagePyramidPanel<T>();
	gui.set(pyramid, true);
	gui.render();

	ShowImages.showWindow(gui,"Image Pyramid Float");

	// To get an image at any of the scales simply call this get function
	T imageAtScale = pyramid.getLayer(1);

	ShowImages.showWindow(ConvertBufferedImage.convertTo(imageAtScale,null),"Image at layer 1");
}
 

import boofcv.core.image.ConvertBufferedImage; //导入依赖的package包/类
/**
	 * When an image is sharpened the intensity of edges are made more extreme while flat regions remain unchanged.
	 */
	public static void sharpen() {
//		BufferedImage buffered = UtilImageIO.loadImage("../data/applet/enhance/dull.jpg");
		BufferedImage buffered = UtilImageIO.loadImage("../data/applet/enhance/dark.jpg");
		ImageUInt8 gray = ConvertBufferedImage.convertFrom(buffered,(ImageUInt8)null);
		ImageUInt8 adjusted = new ImageUInt8(gray.width, gray.height);


		ListDisplayPanel panel = new ListDisplayPanel();

		EnhanceImageOps.sharpen4(gray, adjusted);
		panel.addImage(ConvertBufferedImage.convertTo(adjusted,null),"Sharpen-4");

		EnhanceImageOps.sharpen8(gray, adjusted);
		panel.addImage(ConvertBufferedImage.convertTo(adjusted,null),"Sharpen-8");

		panel.addImage(ConvertBufferedImage.convertTo(gray,null),"Original");

		panel.setPreferredSize(new Dimension(gray.width,gray.height));
		ShowImages.showWindow(panel,"Sharpen");
	}