Example #1
0
  public static void assertEqualsRelative(ImageBase imgA, ImageBase imgB, double tolFrac) {

    // if no specialized check exists, use a slower generalized approach
    if (imgA instanceof ImageSingleBand) {
      GImageSingleBand a = FactoryGImageSingleBand.wrap((ImageSingleBand) imgA);
      GImageSingleBand b = FactoryGImageSingleBand.wrap((ImageSingleBand) imgB);

      for (int y = 0; y < imgA.height; y++) {
        for (int x = 0; x < imgA.width; x++) {
          double valA = a.get(x, y).doubleValue();
          double valB = b.get(x, y).doubleValue();

          double difference = valA - valB;
          double max = Math.max(Math.abs(valA), Math.abs(valB));
          if (max == 0) max = 1;
          if (Math.abs(difference) / max > tolFrac)
            throw new RuntimeException(
                "Values not equal at (" + x + "," + y + ") " + valA + "  " + valB);
        }
      }
    } else if (imgA instanceof MultiSpectral) {
      MultiSpectral a = (MultiSpectral) imgA;
      MultiSpectral b = (MultiSpectral) imgB;

      if (a.getNumBands() != b.getNumBands())
        throw new RuntimeException("Number of bands not equal");

      for (int band = 0; band < a.getNumBands(); band++) {
        assertEqualsRelative(a.getBand(band), b.getBand(band), tolFrac);
      }
    } else {
      throw new RuntimeException("Unknown image type");
    }
  }
Example #2
0
  public static void printDiff(ImageSingleBand imgA, ImageSingleBand imgB) {

    GImageSingleBand a = FactoryGImageSingleBand.wrap(imgA);
    GImageSingleBand b = FactoryGImageSingleBand.wrap(imgB);

    System.out.println("------- Difference -----------");
    for (int y = 0; y < imgA.getHeight(); y++) {
      for (int x = 0; x < imgA.getWidth(); x++) {
        double diff = Math.abs(a.get(x, y).doubleValue() - b.get(x, y).doubleValue());
        System.out.printf("%2d ", (int) diff);
      }
      System.out.println();
    }
  }
  private void equalsTranVertical(
      ImageSingleBand expected, ImageSingleBand found, int begin, int end, String quad) {

    GImageSingleBand e = FactoryGImageSingleBand.wrap(expected);
    GImageSingleBand f = FactoryGImageSingleBand.wrap(found);

    for (int y = 0; y < expected.height; y++) {
      // see if the inner image is identical to the naive implementation
      // the border should be unmodified, zeros
      if (y >= begin && y < end) {
        for (int x = 0; x < expected.width; x++) {
          assertEquals(
              quad + " ( " + x + " , " + y + " )",
              e.get(x, y).floatValue(),
              f.get(x, y).floatValue(),
              1e-4f);
        }
      } else {
        for (int x = 0; x < expected.width; x++) {
          assertTrue(
              quad + " ( " + x + " , " + y + " ) 0 != " + f.get(x, y),
              0 == f.get(x, y).floatValue());
        }
      }
    }
  }
Example #4
0
 private static void compareValues(
     double tol, GImageSingleBand a, GImageSingleBand b, int x, int y) {
   double normalizer = Math.abs(a.get(x, y).doubleValue()) + Math.abs(b.get(x, y).doubleValue());
   if (normalizer < 1.0) normalizer = 1.0;
   if (Math.abs(a.get(x, y).doubleValue() - b.get(x, y).doubleValue()) / normalizer > tol)
     throw new RuntimeException(
         "values not equal at (" + x + " " + y + ") " + a.get(x, y) + "  " + b.get(x, y));
 }
Example #5
0
  public static void assertEqualsInner(
      ImageBase imgA, ImageBase imgB, double tol, int borderX, int borderY, boolean relative) {

    // if no specialized check exists, use a slower generalized approach
    if (imgA instanceof ImageSingleBand) {
      GImageSingleBand a = FactoryGImageSingleBand.wrap((ImageSingleBand) imgA);
      GImageSingleBand b = FactoryGImageSingleBand.wrap((ImageSingleBand) imgB);

      for (int y = borderY; y < imgA.height - borderY; y++) {
        for (int x = borderX; x < imgA.width - borderX; x++) {
          double valA = a.get(x, y).doubleValue();
          double valB = b.get(x, y).doubleValue();

          double error = Math.abs(valA - valB);
          if (relative) {
            double denominator = Math.abs(valA) + Math.abs(valB);
            if (denominator == 0) denominator = 1;
            error /= denominator;
          }
          if (error > tol)
            throw new RuntimeException(
                "Values not equal at (" + x + "," + y + ") " + valA + "  " + valB);
        }
      }
    } else if (imgA instanceof MultiSpectral) {
      MultiSpectral a = (MultiSpectral) imgA;
      MultiSpectral b = (MultiSpectral) imgB;

      if (a.getNumBands() != b.getNumBands())
        throw new RuntimeException("Number of bands not equal");

      for (int band = 0; band < a.getNumBands(); band++) {
        assertEqualsInner(a.getBand(band), b.getBand(band), tol, borderX, borderY, relative);
      }
    } else {
      throw new RuntimeException("Unknown image type");
    }
  }
Example #6
0
  public static void checkBorderZero(ImageSingleBand outputImage, int border) {
    GImageSingleBand img = FactoryGImageSingleBand.wrap(outputImage);

    for (int y = 0; y < img.getHeight(); y++) {
      if (y >= border && y < img.getHeight() - border) continue;

      for (int x = 0; x < img.getWidth(); x++) {
        if (x >= border && x < img.getWidth() - border) continue;
        if (img.get(x, y).intValue() != 0)
          throw new RuntimeException("The border is not zero: " + x + " " + y);
      }
    }
  }
Example #7
0
  public static void checkEquals(
      BufferedImage imgA, MultiSpectral imgB, boolean boofcvBandOrder, float tol) {

    if (imgA.getRaster() instanceof ByteInterleavedRaster
        && imgA.getType() != BufferedImage.TYPE_BYTE_INDEXED) {
      ByteInterleavedRaster raster = (ByteInterleavedRaster) imgA.getRaster();

      if (raster.getNumBands() == 1) {
        GImageSingleBand band = FactoryGImageSingleBand.wrap(imgB.getBand(0));

        int strideA = raster.getScanlineStride();
        int offsetA = raster.getDataOffset(0) - raster.getPixelStride() + 1;

        // handle a special case where the RGB conversion is screwed
        for (int i = 0; i < imgA.getHeight(); i++) {
          for (int j = 0; j < imgA.getWidth(); j++) {
            double valB = band.get(j, i).doubleValue();
            int valA = raster.getDataStorage()[offsetA + i * strideA + j];
            valA &= 0xFF;

            if (Math.abs(valA - valB) > tol)
              throw new RuntimeException("Images are not equal: A = " + valA + " B = " + valB);
          }
        }
        return;
      }
    }

    int bandOrder[];

    if (boofcvBandOrder) {
      if (imgB.getNumBands() == 4) {
        bandOrder = new int[] {1, 2, 3, 0};
      } else {
        bandOrder = new int[] {0, 1, 2};
      }
    } else {
      if (imgA.getType() == BufferedImage.TYPE_INT_RGB) {
        bandOrder = new int[] {0, 1, 2};
      } else if (imgA.getType() == BufferedImage.TYPE_INT_BGR
          || imgA.getType() == BufferedImage.TYPE_3BYTE_BGR) {
        bandOrder = new int[] {2, 1, 0};
      } else if (imgA.getType() == BufferedImage.TYPE_4BYTE_ABGR) {
        bandOrder = new int[] {0, 3, 2, 1};
      } else if (imgA.getType() == BufferedImage.TYPE_INT_ARGB) {
        bandOrder = new int[] {0, 1, 2, 3};
      } else {
        bandOrder = new int[] {0, 1, 2};
      }
    }

    int expected[] = new int[4];

    for (int y = 0; y < imgA.getHeight(); y++) {
      for (int x = 0; x < imgA.getWidth(); x++) {
        // getRGB() automatically converts the band order to ARGB
        int rgb = imgA.getRGB(x, y);

        expected[0] = ((rgb >>> 24) & 0xFF); // alpha
        expected[1] = ((rgb >>> 16) & 0xFF); // red
        expected[2] = ((rgb >>> 8) & 0xFF); // green
        expected[3] = (rgb & 0xFF); // blue

        if (imgB.getNumBands() == 4) {

          for (int i = 0; i < 4; i++) {
            double found = GeneralizedImageOps.get(imgB.getBand(bandOrder[i]), x, y);
            if (Math.abs(Math.exp(expected[i] - found)) > tol) {
              for (int j = 0; j < 4; j++) {
                System.out.println(
                    expected[j] + " " + GeneralizedImageOps.get(imgB.getBand(bandOrder[j]), x, y));
              }
              throw new RuntimeException(
                  "Images are not equal: band - " + i + " type " + imgA.getType());
            }
          }

        } else if (imgB.getNumBands() == 3) {

          for (int i = 0; i < 3; i++) {
            double found = GeneralizedImageOps.get(imgB.getBand(bandOrder[i]), x, y);
            if (Math.abs(expected[i + 1] - found) > tol) {
              for (int j = 0; j < 3; j++) {
                System.out.println(
                    expected[j + 1]
                        + " "
                        + GeneralizedImageOps.get(imgB.getBand(bandOrder[j]), x, y));
              }
              throw new RuntimeException(
                  "Images are not equal: band - " + i + " type " + imgA.getType());
            }
          }

        } else {
          throw new RuntimeException("Unexpectd number of bands");
        }
      }
    }
  }