Java Code Examples for org.opencv.core.Mat#get()
The following examples show how to use
org.opencv.core.Mat#get() .
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Example 1
| Source File: WeightCalculate.java From ImageEnhanceViaFusion with MIT License | 6 votes |
|
public static Mat LocalContrast(Mat img) {
double[] h = { 1.0 / 16.0, 4.0 / 16.0, 6.0 / 16.0, 4.0 / 16.0, 1.0 / 16.0 };
Mat mask = new Mat(h.length, h.length, img.type());
for (int i = 0; i < h.length; i++) {
for (int j = 0; j < h.length; j++) {
mask.put(i, j, h[i] * h[j]);
}
}
Mat localContrast = new Mat();
Imgproc.filter2D(img, localContrast, img.depth(), mask);
for (int i = 0; i < localContrast.rows(); i++) {
for (int j = 0; j < localContrast.cols(); j++) {
if (localContrast.get(i, j)[0] > Math.PI / 2.75)
localContrast.put(i, j, Math.PI / 2.75);
}
}
Core.subtract(img, localContrast, localContrast);
return localContrast.mul(localContrast);
}
Example 2
| Source File: Converters.java From sudokufx with Apache License 2.0 | 6 votes |
|
public static void Mat_to_vector_Mat(Mat m, List<Mat> mats) {
if (mats == null)
throw new IllegalArgumentException("mats == null");
int count = m.rows();
if (CvType.CV_32SC2 != m.type() || m.cols() != 1)
throw new IllegalArgumentException(
"CvType.CV_32SC2 != m.type() || m.cols()!=1\n" + m);
mats.clear();
int[] buff = new int[count * 2];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
long addr = (((long) buff[i * 2]) << 32) | (((long) buff[i * 2 + 1]) & 0xffffffffL);
mats.add(new Mat(addr));
}
}
Example 3
| Source File: Converters.java From FaceDetectDemo with Apache License 2.0 | 6 votes |
|
public static void Mat_to_vector_KeyPoint(Mat m, List<KeyPoint> kps) {
if (kps == null)
throw new java.lang.IllegalArgumentException("Output List can't be null");
int count = m.rows();
if (CvType.CV_64FC(7) != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_64FC(7) != m.type() || m.cols()!=1\n" + m);
kps.clear();
double[] buff = new double[7 * count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
kps.add(new KeyPoint((float) buff[7 * i], (float) buff[7 * i + 1], (float) buff[7 * i + 2], (float) buff[7 * i + 3],
(float) buff[7 * i + 4], (int) buff[7 * i + 5], (int) buff[7 * i + 6]));
}
}
Example 4
| Source File: Converters.java From real_time_circle_detection_android with MIT License | 6 votes |
|
public static void Mat_to_vector_Mat(Mat m, List<Mat> mats) {
if (mats == null)
throw new java.lang.IllegalArgumentException("mats == null");
int count = m.rows();
if (CvType.CV_32SC2 != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_32SC2 != m.type() || m.cols()!=1\n" + m);
mats.clear();
int[] buff = new int[count * 2];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
long addr = (((long) buff[i * 2]) << 32) | (((long) buff[i * 2 + 1]) & 0xffffffffL);
mats.add(new Mat(addr));
}
}
Example 5
| Source File: Converters.java From PixaToon with GNU General Public License v3.0 | 5 votes |
|
public static void Mat_to_vector_float(Mat m, List<Float> fs) {
if (fs == null)
throw new java.lang.IllegalArgumentException("fs == null");
int count = m.rows();
if (CvType.CV_32FC1 != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_32FC1 != m.type() || m.cols()!=1\n" + m);
fs.clear();
float[] buff = new float[count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
fs.add(buff[i]);
}
}
Example 6
| Source File: Converters.java From MOAAP with MIT License | 5 votes |
|
public static void Mat_to_vector_float(Mat m, List<Float> fs) {
if (fs == null)
throw new java.lang.IllegalArgumentException("fs == null");
int count = m.rows();
if (CvType.CV_32FC1 != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_32FC1 != m.type() || m.cols()!=1\n" + m);
fs.clear();
float[] buff = new float[count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
fs.add(buff[i]);
}
}
Example 7
| Source File: Converters.java From SmartPaperScan with Apache License 2.0 | 5 votes |
|
public static void Mat_to_vector_char(Mat m, List<Byte> bs) {
if (bs == null)
throw new java.lang.IllegalArgumentException("Output List can't be null");
int count = m.rows();
if (CvType.CV_8SC1 != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_8SC1 != m.type() || m.cols()!=1\n" + m);
bs.clear();
byte[] buff = new byte[count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
bs.add(buff[i]);
}
}
Example 8
| Source File: Converters.java From ResistorScanner with MIT License | 5 votes |
|
public static void Mat_to_vector_int(Mat m, List<Integer> is) {
if (is == null)
throw new java.lang.IllegalArgumentException("is == null");
int count = m.rows();
if (CvType.CV_32SC1 != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_32SC1 != m.type() || m.cols()!=1\n" + m);
is.clear();
int[] buff = new int[count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
is.add(buff[i]);
}
}
Example 9
| Source File: OpenCVoperation.java From Human-hair-detection with Apache License 2.0 | 5 votes |
|
public Mat quantizeImage(Mat image,String destinationFileName)
{
//Mat image = testGrabCut(imageFilePath);
int rows = image.rows();
int cols = image.cols();
Mat newImage = new Mat(image.size(),image.type());
for(int r = 0 ; r < rows ; r++)
{
for(int c =0; c< cols; c++)
{
double [] pixel_val = image.get(r, c);
double [] pixel_data = new double[3];
pixel_data[0] = reduceVal(pixel_val[0]);
pixel_data[1] = reduceVal(pixel_val[1]);
pixel_data[2] = reduceVal(pixel_val[2]);
// System.out.print("(" +pixel_data[0]+","+pixel_data[1]+","+pixel_data[2]+") *");
newImage.put(r, c, pixel_data);
}
// System.out.println();
}
/*
MatOfInt params= new MatOfInt();
int arr[] = new int[2];
arr[0]= Imgcodecs.CV_IMWRITE_JPEG_QUALITY;
arr[1]= 100;
params.fromArray(arr);
*/
Imgcodecs.imwrite(resultDirectory+destinationFileName, newImage);
return newImage;
}
Example 10
| Source File: Converters.java From FtcSamples with MIT License | 5 votes |
|
public static void Mat_to_vector_char(Mat m, List<Byte> bs) {
if (bs == null)
throw new java.lang.IllegalArgumentException("Output List can't be null");
int count = m.rows();
if (CvType.CV_8SC1 != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_8SC1 != m.type() || m.cols()!=1\n" + m);
bs.clear();
byte[] buff = new byte[count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
bs.add(buff[i]);
}
}
Example 11
| Source File: MainActivity.java From real_time_circle_detection_android with MIT License | 5 votes |
|
@Override
public Mat onCameraFrame(CameraBridgeViewBase.CvCameraViewFrame inputFrame) {
Mat input = inputFrame.gray();
Mat circles = new Mat();
Imgproc.blur(input, input, new Size(7, 7), new Point(2, 2));
Imgproc.HoughCircles(input, circles, Imgproc.CV_HOUGH_GRADIENT, 2, 100, 100, 90, 0, 1000);
Log.i(TAG, String.valueOf("size: " + circles.cols()) + ", " + String.valueOf(circles.rows()));
if (circles.cols() > 0) {
for (int x=0; x < Math.min(circles.cols(), 5); x++ ) {
double circleVec[] = circles.get(0, x);
if (circleVec == null) {
break;
}
Point center = new Point((int) circleVec[0], (int) circleVec[1]);
int radius = (int) circleVec[2];
Imgproc.circle(input, center, 3, new Scalar(255, 255, 255), 5);
Imgproc.circle(input, center, radius, new Scalar(255, 255, 255), 2);
}
}
circles.release();
input.release();
return inputFrame.rgba();
}
Example 12
| Source File: Converters.java From real_time_circle_detection_android with MIT License | 5 votes |
|
public static void Mat_to_vector_uchar(Mat m, List<Byte> us) {
if (us == null)
throw new java.lang.IllegalArgumentException("Output List can't be null");
int count = m.rows();
if (CvType.CV_8UC1 != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_8UC1 != m.type() || m.cols()!=1\n" + m);
us.clear();
byte[] buff = new byte[count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
us.add(buff[i]);
}
}
Example 13
| Source File: Converters.java From SmartPaperScan with Apache License 2.0 | 5 votes |
|
public static void Mat_to_vector_double(Mat m, List<Double> ds) {
if (ds == null)
throw new java.lang.IllegalArgumentException("ds == null");
int count = m.rows();
if (CvType.CV_64FC1 != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_64FC1 != m.type() || m.cols()!=1\n" + m);
ds.clear();
double[] buff = new double[count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
ds.add(buff[i]);
}
}
Example 14
| Source File: Color.java From FTCVision with MIT License | 5 votes |
|
/**
* Convert this color to a different colorspace and return a scalar
*
* @param to Colorspace to convert to
* @return Scalar in other colorspace
*/
public Scalar convertColorScalar(ColorSpace to) {
if (getColorSpace() == to)
return getScalar();
if (!getColorSpace().canConvertTo(to))
throw new IllegalArgumentException("Cannot convert color to the desired color space.");
Scalar output = this.getScalar();
try {
for (int i = 0; i < getColorSpace().getConversionsTo(to).length; i += 3) {
int conversion = getColorSpace().getConversionsTo(to)[i];
int inputDim = getColorSpace().getConversionsTo(to)[i + 1];
int outputDim = getColorSpace().getConversionsTo(to)[i + 2];
Mat pointMatTo = new Mat();
Mat pointMatFrom = new Mat(1, 1, CvType.CV_8UC(inputDim), output);
Imgproc.cvtColor(pointMatFrom, pointMatTo, conversion, outputDim);
output = new Scalar(pointMatTo.get(0, 0));
pointMatTo.release();
pointMatFrom.release();
}
} catch (Exception ignored) {
throw new IllegalArgumentException("Cannot convert color to the desired color space.");
}
return output;
}
Example 15
| Source File: Converters.java From LicensePlateDiscern with MIT License | 5 votes |
|
public static void Mat_to_vector_RotatedRect(Mat m, List<RotatedRect> rs) {
if (rs == null)
throw new java.lang.IllegalArgumentException("rs == null");
int count = m.rows();
if (CvType.CV_32FC(5) != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_32FC5 != m.type() || m.rows()!=1\n" + m);
rs.clear();
float[] buff = new float[5 * count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
rs.add(new RotatedRect(new Point(buff[5 * i], buff[5 * i + 1]), new Size(buff[5 * i + 2], buff[5 * i + 3]), buff[5 * i + 4]));
}
}
Example 16
| Source File: Converters.java From SmartPaperScan with Apache License 2.0 | 5 votes |
|
public static void Mat_to_vector_DMatch(Mat m, List<DMatch> matches) {
if (matches == null)
throw new java.lang.IllegalArgumentException("Output List can't be null");
int count = m.rows();
if (CvType.CV_64FC4 != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_64FC4 != m.type() || m.cols()!=1\n" + m);
matches.clear();
double[] buff = new double[4 * count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
matches.add(new DMatch((int) buff[4 * i], (int) buff[4 * i + 1], (int) buff[4 * i + 2], (float) buff[4 * i + 3]));
}
}
Example 17
| Source File: Converters.java From Android-Car-duino with GNU General Public License v2.0 | 5 votes |
|
public static void Mat_to_vector_Rect(Mat m, List<Rect> rs) {
if (rs == null)
throw new java.lang.IllegalArgumentException("rs == null");
int count = m.rows();
if (CvType.CV_32SC4 != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_32SC4 != m.type() || m.rows()!=1\n" + m);
rs.clear();
int[] buff = new int[4 * count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
rs.add(new Rect(buff[4 * i], buff[4 * i + 1], buff[4 * i + 2], buff[4 * i + 3]));
}
}
Example 18
| Source File: Converters.java From pasm-yolov3-Android with GNU General Public License v3.0 | 5 votes |
|
public static void Mat_to_vector_char(Mat m, List<Byte> bs) {
if (bs == null)
throw new java.lang.IllegalArgumentException("Output List can't be null");
int count = m.rows();
if (CvType.CV_8SC1 != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_8SC1 != m.type() || m.cols()!=1\n" + m);
bs.clear();
byte[] buff = new byte[count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
bs.add(buff[i]);
}
}
Example 19
| Source File: Converters.java From Form-N-Fun with MIT License | 5 votes |
|
public static void Mat_to_vector_double(Mat m, List<Double> ds) {
if (ds == null)
throw new java.lang.IllegalArgumentException("ds == null");
int count = m.rows();
if (CvType.CV_64FC1 != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_64FC1 != m.type() || m.cols()!=1\n" + m);
ds.clear();
double[] buff = new double[count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
ds.add(buff[i]);
}
}
Example 20
| Source File: MatXml.java From Android-Face-Recognition-with-Deep-Learning-Library with Apache License 2.0 | 4 votes |
|
private String dataStringBuilder(Mat mat) {
StringBuilder sb = new StringBuilder();
int rows = mat.rows();
int cols = mat.cols();
int type = mat.type();
if( type == CvType.CV_32F ) {
float fs[] = new float[1];
for( int r=0 ; r<rows ; r++ ) {
for( int c=0 ; c<cols ; c++ ) {
mat.get(r, c, fs);
sb.append( String.valueOf(fs[0]));
sb.append( ' ' );
}
sb.append( '\n' );
}
}
else if( type == CvType.CV_32S ) {
int is[] = new int[1];
for( int r=0 ; r<rows ; r++ ) {
for( int c=0 ; c<cols ; c++ ) {
mat.get(r, c, is);
sb.append( String.valueOf(is[0]));
sb.append( ' ' );
}
sb.append( '\n' );
}
}
else if( type == CvType.CV_16S ) {
short ss[] = new short[1];
for( int r=0 ; r<rows ; r++ ) {
for( int c=0 ; c<cols ; c++ ) {
mat.get(r, c, ss);
sb.append( String.valueOf(ss[0]));
sb.append( ' ' );
}
sb.append( '\n' );
}
}
else if( type == CvType.CV_8U ) {
byte bs[] = new byte[1];
for( int r=0 ; r<rows ; r++ ) {
for( int c=0 ; c<cols ; c++ ) {
mat.get(r, c, bs);
sb.append( String.valueOf(bs[0]));
sb.append( ' ' );
}
sb.append( '\n' );
}
}
else {
sb.append("unknown type\n");
}
return sb.toString();
}
