javafx.scene.image.WritablePixelFormat Java Examples

The following examples show how to use javafx.scene.image.WritablePixelFormat. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: FxNinePatch.java From NinePatch with Apache License 2.0

6 votes

@Override
public int[] getPixels(Image img, int x, int y, int w, int h)
{
    int[] pixels = new int[w * h];

    PixelReader reader = img.getPixelReader();

    PixelFormat.Type type =  reader.getPixelFormat().getType();

    WritablePixelFormat<IntBuffer> format = null;

    if(type == PixelFormat.Type.INT_ARGB_PRE)
    {
        format = PixelFormat.getIntArgbPreInstance();
    }
    else
    {
        format = PixelFormat.getIntArgbInstance();
    }

    reader.getPixels(x, y, w, h, format, pixels, 0, w);

    return pixels;
}

Example #2

Source File: SwingFXUtils.java From ShootOFF with GNU General Public License v3.0

6 votes

/**
 * Determine the appropriate {@link WritablePixelFormat} type that can be
 * used to transfer data into the indicated BufferedImage.
 * 
 * @param bimg
 *            the BufferedImage that will be used as a destination for a
 *            {@code PixelReader<IntBuffer>#getPixels()} operation.
 * @return
 */
private static WritablePixelFormat<IntBuffer> getAssociatedPixelFormat(BufferedImage bimg) {
	switch (bimg.getType()) {
	// We lie here for xRGB, but we vetted that the src data was opaque
	// so we can ignore the alpha. We use ArgbPre instead of Argb
	// just to get a loop that does not have divides in it if the
	// PixelReader happens to not know the data is opaque.
	case BufferedImage.TYPE_INT_RGB:
	case BufferedImage.TYPE_INT_ARGB_PRE:
		return PixelFormat.getIntArgbPreInstance();

	case BufferedImage.TYPE_INT_ARGB:
		return PixelFormat.getIntArgbInstance();

	default:
		// Should not happen...
		throw new InternalError("Failed to validate BufferedImage type");
	}
}

Example #3

Source File: OpenCVUtils.java From OpenLabeler with Apache License 2.0

5 votes

/**
 * Return OpenCV MAT in CvType.CV_8UC4
 */
public static Mat imageToMat(Image image) {
   int width = (int) image.getWidth();
   int height = (int) image.getHeight();
   byte[] buffer = new byte[width * height * 4];

   PixelReader reader = image.getPixelReader();
   WritablePixelFormat<ByteBuffer> format = WritablePixelFormat.getByteBgraInstance();
   reader.getPixels(0, 0, width, height, format, buffer, 0, width * 4);

   Mat mat = new Mat(height, width, CvType.CV_8UC4);
   mat.put(0, 0, buffer);
   return mat;
}