Java FImage类代码示例

import org.openimaj.image.FImage; //导入依赖的package包/类
@Override
public void run() {
    final FImage fImage = ImageUtilities.createFImage(buffImg);
    final List<KEDetectedFace> faces = DETECTOR.detectFaces(fImage);
    if(!faces.isEmpty()){
        CameraManager.INSTANCE.addFaces(faces.size());
        final MBFImage mbf = ImageUtilities.createMBFImage(buffImg, true);
        LOG.info("Found {} faces at {}", faces.size(), when);
        faces.stream().forEach(f -> KERenderer.drawDetectedFace(mbf, 5, f));
        final String filename = Formats.toTaken(when) + ".jpeg";
        final Path outPath = ImagesEndpoint.getIMAGES_ROOT().resolve(filename);
        try(OutputStream out = Files.newOutputStream(outPath)){
            ImageUtilities.write(mbf, "JPG", out);
        } catch (IOException ex) {
            LOG.warn("Error scanning for faces", ex);
        }
    }
}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
/**
	 * Test the distance transform
	 * @param args
	 * @throws IOException
	 */
	public static void main(String args[]) throws IOException{
		FImage i = ImageUtilities.readF(new File("/Users/ss/Desktop/tache.jpg"));
		EuclideanDistanceTransform etrans = new EuclideanDistanceTransform();
//		i.processInplace(new CannyEdgeDetector());
		i.inverse();
		for(int x = 0;x < i.width; x++)
			for(int y = 0; y < i.height; y++) 
				if(i.pixels[y][x] == 1.0f) 
					i.setPixel(x, y, Float.MAX_VALUE);
		DisplayUtilities.display(i);
		i.analyseWith(etrans);
		i = etrans.getDistances();
		i.normalise();
		DisplayUtilities.display(i);
	}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
/**
 * Return the kernel response at the x,y in the given image.
 *
 * This method will throw an array index out of bounds if x,y requests
 * pixels outside the image bounds
 *
 * @param x
 * @param y
 * @param image
 * @return the kernel response at the given coordinates
 */
public float responseAt(int x, int y, FImage image) {
	float sum = 0;
	final int kh = kernel.height;
	final int kw = kernel.width;
	final int hh = kh / 2;
	final int hw = kw / 2;

	for (int j = 0, jj = kh - 1; j < kh; j++, jj--) {
		for (int i = 0, ii = kw - 1; i < kw; i++, ii--) {
			final int rx = x + i - hw;
			final int ry = y + j - hh;

			sum += image.pixels[ry][rx] * kernel.pixels[jj][ii];
		}
	}
	return sum;
}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
@Override
	public void beforeUpdate(MBFImage frame) {
		if(learnMode){
			System.out.println("Adding frame");
			if(this.learningFrames.size()>5)
				this.learningFrames.remove(0);
			this.learningFrames.add(frame.process(new PolygonExtractionProcessor<Float[],MBFImage>(this.polygonListener.getPolygon(),RGBColour.BLACK)));
			
		}
		if(viewMode){
			FImage guess = this.hmodel.classifyImage(frame).normalise();
//			FImage greyFrame = Transforms.calculateIntensity(frame);
//			for(int y = 0; y < guess.height; y++){
//				for(int x = 0; x < guess.width; x++){
//					if(guess.pixels[y][x] < 0.1){
//						Float greyP = greyFrame.getPixel(x, y);
//						frame.setPixel(x, y, new Float[]{greyP,greyP,greyP});
//					}
//					
//				}
//			}
			frame.internalAssign(new MBFImage(new FImage[]{guess, guess, guess}));
		}
		this.polygonListener.drawPoints(frame);
		
	}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
/**
 * Main method
 * 
 * @param args
 * @throws IOException
 */
public static void main(String[] args) throws IOException {
	final VideoCapture vc = new VideoCapture(320, 240);
	final VideoDisplay<MBFImage> vd = VideoDisplay.createVideoDisplay(vc);
	vd.addVideoListener(
			new VideoDisplayListener<MBFImage>() {
				@Override
				public void beforeUpdate(MBFImage frame) {
					final FaceDetector<DetectedFace, FImage> fd = new HaarCascadeDetector(40);
					final List<DetectedFace> faces = fd.detectFaces(Transforms.calculateIntensity(frame));

					for (final DetectedFace face : faces) {
						frame.drawShape(face.getBounds(), RGBColour.RED);
					}
				}

				@Override
				public void afterUpdate(VideoDisplay<MBFImage> display) {
				}
			});
}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
public static void main(String[] args) throws IOException, InterruptedException {
	final FImage[] sequence = new FImage[10];
	for (int i = 0; i < sequence.length; i++) {
		sequence[i] = ImageUtilities.readF(new File("/Users/jon/pendulum+circle+notexture/frame_" + i + ".png"));
	}

	final MovingEdges me = new MovingEdges(sequence, new FSobelMagnitude(), 10, 0.45f);

	for (int i = 0; i < sequence.length - 2; i++) {
		DisplayUtilities.display(me.heatOut[i].clone().normalise());
		// DisplayUtilities.display(me.totalHeat[i].clone().normalise());
	}
	// for (int i = 0; i < sequence.length; i++) {
	// DisplayUtilities.display(me.E[i].clone().normalise());
	// }
}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
/**
 * Helper function to display the image with lines
 *
 * @param i
 * @param hl
 * @param tf
 * @param title
 * @param lines
 */
private void debugLines(final FImage i, final Matrix tf, final String title,
		final Collection<Line2d> lines)
{
	// Create an image showing where the lines are
	final MBFImage output = new MBFImage(i.getWidth(),
			i.getHeight(), 3);
	final MBFImageRenderer r = output.createRenderer(); // RenderHints.ANTI_ALIASED
	// );
	r.drawImage(i, 0, 0);

	for (final Line2d l : lines)
	{
		final Line2d l2 = l.transform(tf).lineWithinSquare(output.getBounds());

		// l2 can be null if it doesn't intersect with the image
		if (l2 != null)
		{
			System.out.println(l2);
			r.drawLine(l2, 2, RGBColour.RED);
		}
	}

	DisplayUtilities.display(output, title);
}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
@Override
public void analyseImage(FImage image) {
	CLQueue queue = context.createDefaultQueue();

	CLImage2D in = CLImageConversion.convert(context, image);
	
	CLImageFormat outFmt = new CLImageFormat(ChannelOrder.RGBA, ChannelDataType.Float);
	CLImage2D out = context.createImage2D(CLMem.Usage.Output, outFmt, in.getWidth(), in.getHeight());
	
	kernel.setArgs(in, out);
	CLEvent evt = kernel.enqueueNDRange(queue, new int[] {(int) in.getWidth(), (int) in.getHeight()});

	MBFImage res = CLImageConversion.convert(queue, evt, out, new MBFImage(image.width, image.height, 4));
	
	this.magnitude = res.bands.get(0);
	this.orientation = res.bands.get(1);
	this.gradientX = res.bands.get(2);
	this.gradientY = res.bands.get(3);
	
	in.release();
	out.release();
	queue.release();
}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
@Override
public void consumeFrequency(final float[] fftReal, final float[] fftImag,final int low,final int high) {

	final int blockWidth = 10;
	final int blockHeight = 5;

	if( this.spectra == null || this.spectra.getHeight() != (high-low) * blockHeight )
	{
		this.spectra = new FImage( this.mbfImage.getWidth(), (high-low)*blockHeight);
	}

	this.spectra.shiftLeftInplace(blockWidth);
	// Draw the spectra
	for( int i = low; i < high; i++ )
	{
		final float re = fftReal[i];
		final float im = fftImag[i];
		float mag = (float)Math.log(Math.sqrt( re*re + im*im )+1)/5;
		if( mag > 1 ) mag = 1;
		this.spectra.drawShapeFilled(new Rectangle(this.spectra.getWidth()-blockWidth, this.spectra.getHeight()-(i * blockHeight), blockWidth,blockHeight), mag );
	}

	final MBFImage toDraw = this.mbfImage.clone();
	toDraw.drawImage(new MBFImage(this.spectra,this.spectra,this.spectra), (this.mbfImage.getWidth() - this.spectra.width)/2, this.mbfImage.getHeight() - this.spectra.height);
	this.ic.setImage(this.buf = ImageUtilities.createBufferedImageForDisplay( toDraw, this.buf ));
}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
static FImage loadPositive() throws IOException {
	final String base = "/Users/jsh2/Data/att_faces/s%d/%d.pgm";

	final FImage image = new FImage(400, 400);
	for (int j = 1; j <= 40; j++) {
		for (int i = 1; i <= 10; i++) {
			final File file = new File(String.format(base, j, i));

			FImage img = ImageUtilities.readF(file);
			img = img.extractCenter(50, 50);
			img = ResizeProcessor.resample(img, 400, 400);
			image.addInplace(img);
		}
	}

	return image.normalise();
}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
float firstPassDivisor(FImage image, FImage mask) {
	double accum = 0;
	int count = 0;
	
	for (int y=0; y<image.height; y++) {
		for (int x=0; x<image.width; x++) {
			if (mask.pixels[y][x] == 1) {
				double ixy = image.pixels[y][x];
				
				accum += Math.pow(Math.abs(ixy), alpha);
				count++;
			}
		}
	}
	
	return (float) Math.pow(accum / count, 1.0 / alpha);
}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
/**
 * Calculate intensity by a weighted average of the R, G, B planes. Assumes
 * planes are all in 0..1, and NTSC weighting coefficients. Assignment to
 * graylevels is done using a LUT, so greys will have one of 256 discrete
 * levels. The primary purpose of this is to be compatible with
 * {@link FImage#FImage(int[], int, int)} and give exactly the same result.
 * 
 * @param in
 *            MBFImage with 3 bands
 * @return intensity image
 */
public static FImage calculateIntensityNTSC_LUT(final MBFImage in) {
	if (in.colourSpace != ColourSpace.RGB && in.colourSpace != ColourSpace.RGBA)
		throw new UnsupportedOperationException("Can only convert RGB or RGBA images");

	final FImage out = new FImage(in.getWidth(), in.getHeight());

	for (int r = 0; r < in.getHeight(); r++) {
		for (int c = 0; c < in.getWidth(); c++) {
			out.pixels[r][c] = ImageUtilities.BYTE_TO_FLOAT_LUT[(int) ((
					0.299f * (255 * in.getBand(0).pixels[r][c]) +
							0.587f * (255 * in.getBand(1).pixels[r][c]) +
					0.114f * (255 * in.getBand(2).pixels[r][c])))];
		}
	}

	return out;
}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
@Override
public void analyseImage(FImage in) {
	super.analyseImage(in);

	final FImage[] tmpResp = responses;
	responses = new FImage[9];

	responses[0] = absAverage(tmpResp[L5E5], tmpResp[E5L5]);
	responses[1] = absAverage(tmpResp[L5R5], tmpResp[R5L5]);
	responses[2] = absAverage(tmpResp[E5S5], tmpResp[S5E5]);
	responses[3] = tmpResp[S5S5].abs();
	responses[4] = tmpResp[R5R5].abs();
	responses[5] = absAverage(tmpResp[L5S5], tmpResp[S5L5]);
	responses[6] = tmpResp[E5E5].abs();
	responses[7] = absAverage(tmpResp[E5R5], tmpResp[R5E5]);
	responses[8] = absAverage(tmpResp[S5R5], tmpResp[R5S5]);

	for (int i = 0; i < 9; i++) {
		responses[i] = responses[i].processInplace(new SumBoxFilter(macroWidth, macroHeight));
	}
}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
@Override
public void processImage(FImage image) {
	final FImage tmpImage = new FImage(image.width, image.height);
	float min;
	float max;

	for (int y = 0; y < image.height; y++) {
		for (int x = 0; x < image.width; x++) {
			min = Float.MAX_VALUE;
			max = -Float.MAX_VALUE;
			for (final Pixel sp : support) {
				final int xx = x + sp.x;
				final int yy = y + sp.y;

				if (xx >= 0 && xx < image.width - 1 && yy >= 0 && yy < image.height - 1) {
					min = Math.min(min, image.pixels[yy][xx]);
					max = Math.max(max, image.pixels[yy][xx]);
				}
			}

			tmpImage.pixels[y][x] = max - min;
		}
	}
	image.internalAssign(tmpImage);
}
 

import org.openimaj.image.FImage; //导入依赖的package包/类
protected FImage render(List<IndependentPair<String, Point2d>> pts, int sz) {
	FImage image = new FImage(sz, sz);
	FImageRenderer renderer = image.createRenderer(RenderHints.ANTI_ALIASED);


	for (IndependentPair<String, Point2d> pair : pts) {
		double x = pair.secondObject().getX();
		double y = pair.secondObject().getY();

		int ix = (int) Math.round((x + 0.5) * sz/2);
		int iy = (int) Math.round((y + 0.5) * sz/2);

		renderer.drawShapeFilled(new Circle(ix, iy, 2), 1f);
		renderer.drawText(pair.firstObject(), ix+5, iy, HersheyFont.TIMES_MEDIUM, 20, 1f);
	}
	
	return image;
}