public IplImage correctGamma(IplImage img) {
// get image intensity
// img.applyGamma(d);
IplImage gray = cvCreateImage(cvGetSize(img), IPL_DEPTH_8U, 1);
cvCvtColor(img, gray, CV_RGB2GRAY);
BufferedImage buffImg = img.getBufferedImage();
BufferedImage buffGray = gray.getBufferedImage();
double grayArr[] = new double[gray.width() * gray.height()];
int counter = 0;
for (int i = 0; i < gray.width(); i++) {
for (int j = 0; j < gray.height(); j++) {
grayArr[counter] = buffGray.getRGB(i, j);
counter++;
}
}
double imgSd = new StandardDeviation().evaluate(grayArr);
double imgMean = new Mean().evaluate(grayArr);
double y = 0;
if (imgMean > 0.5) y = 1 + (Math.abs(0.5 - imgMean) / imgSd);
else y = 1 / (1 + (Math.abs(0.5 - imgMean) / imgSd));
img.applyGamma(y);
return img;
}
public videoPanel() {
cr = new CameraReader();
cr.Start();
this.size = new Dimension(cr.getColorFrame().width() + 20, cr.getColorFrame().height() + 50);
iv = cr.getColorFrame();
this.add(new JLabel(new ImageIcon(iv.getBufferedImage())));
// this.run();
}
public void run() {
isShutdown = false;
while (!isShutdown) {
try {
// long start = System.currentTimeMillis();
IplImage image = grabber.grab();
if (image != null) {
img = image.getBufferedImage();
// System.out.println(System.currentTimeMillis() - start + "ms");
} else {
// System.out.println(System.currentTimeMillis() - start + "ms failed");
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
public void start() {
try {
grabber.start();
grabber.setFrameRate(125);
System.out.println(grabber.getFrameRate());
System.out.println(grabber.getFormat());
System.out.println(grabber.getPixelFormat());
System.out.println(grabber.getSampleRate());
} catch (com.googlecode.javacv.FrameGrabber.Exception e1) {
e1.printStackTrace();
return;
}
try {
IplImage image = grabber.grab();
img = image.getBufferedImage();
} catch (Exception e) {
e.printStackTrace();
}
webcamReaderThread = new Thread(this, "WebcamReaderThread");
webcamReaderThread.start();
}
public IplImage DetectFaces(IplImage image) throws Exception {
// Converts the image to gray scale for detection to work, using the same dimensions as the
// original.
IplImage grayImage = IplImage.createFrom(convertColorToGray(image.getBufferedImage()));
CvMemStorage storage = CvMemStorage.create();
// Using the cascade file, this creates a classification for what objects to detect. In our case
// it is the anterior of the face.
CvHaarClassifierCascade classifier = new CvHaarClassifierCascade(cvLoad(CASCADE_FILE));
// Detect Haar-like objects, depending on the classifier. In this case we use a classifier for
// detecting the anterior of the face.
CvSeq faces = cvHaarDetectObjects(grayImage, classifier, storage, 1.1, 1, 0);
// Initialize the static variables in FaceScanner for determining the area to crop the largest
// detected face.
FaceScanner.height = 0;
FaceScanner.width = 0;
FaceScanner.x = 0;
FaceScanner.y = 0;
// Loop through all detected faces and save the largest (closest) face.
for (int i = 0; i < faces.total(); i++) {
CvRect rect = new CvRect(cvGetSeqElem(faces, i));
if (FaceScanner.width < rect.width()) {
FaceScanner.width = rect.width();
FaceScanner.height = rect.height();
FaceScanner.x = rect.x();
FaceScanner.y = rect.y();
}
if (FaceScanner.displayRects) {
/*Uncomment to draw the rectangles around the detected faces.*/
// if(rect.width() > 130 && rect.height() > 130){
// Draw a square around the detected face.
cvRectangle(
image,
cvPoint(rect.x(), rect.y()),
cvPoint(rect.x() + rect.width(), rect.y() + rect.height()),
CvScalar.GREEN,
2,
CV_AA,
0);
// }
/*-----------------------------------------------------------*/
}
}
// Checks that there was a detected face in the image before saving. Also, the detected "face"
// must be large enough to be considered
// a detected face. This is to limit the amount of erroneous detections. This saves the full
// size image with detections drawn on
// whole image before cropping.
if (!(FaceScanner.height == 0 && FaceScanner.width == 0)
&& !(FaceScanner.height < 130 && FaceScanner.width < 130)) {
// Save the image with rectangles.
// cvSaveImage(filename.replace(".png", "-Rect.png"), image);
} else {
return null;
}
return image;
}
public IplImage scale(IplImage img, int scale) {
BufferedImage bi = resize(img.getBufferedImage(), img.width() / scale, img.height() / scale);
ImageConverter ic = new ImageConverter();
return ic.convertRGB(bi);
}
public static BufferedImage paint(BufferedImage input, Block node) {
IplImage canvas = IplImage.createFrom(input);
paint(canvas, node);
return canvas.getBufferedImage();
}
