private byte[] Encode([NotNull] string ext, [NotNull] MatOfByte buffer)
{
if (ext == null)
{
throw new ArgumentNullException(nameof(ext));
}
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
switch (Format)
{
case ColorFormat.RGB:
{
Mat bgr = new Mat(Height, Width, CvType.CV_8UC3);
Imgproc.cvtColor(Mat, bgr, Imgproc.COLOR_RGB2BGR); // OpenCV uses BGR, Mat is RGB
Imgcodecs.imencode(ext, bgr, buffer);
break;
}
case ColorFormat.Grayscale:
Imgcodecs.imencode(ext, Mat, buffer);
break;
default:
throw new NotSupportedException($"Image encoding for {Format} not supported");
}
return(buffer.toArray());
}
/// <summary>
/// Converts an image Mat to a Texture2D.
/// </summary>
/// <param name="imgDest">Mat that is an image</param>
/// <returns></returns>
private static Texture2D MatToTexture2D(Mat imgDest)
{
Texture2D texture = new Texture2D((int)imgDest.size().width, (int)imgDest.size().height);
var matOfByte = new MatOfByte();
Imgcodecs.imencode(".png", imgDest, matOfByte);
texture.LoadImage(matOfByte.toArray());
return(texture);
}