public static Image <Gray, byte> GeneralBluredBinaryImage(Image <Bgr, byte> image)
{
Gray avg = image.Convert <Gray, byte>().GetAverage();
using (Image <Bgr, byte> bluredImage = image.CopyBlank())
{
CvInvoke.MedianBlur(image, bluredImage, 31);
using (Image <Gray, byte> mask = bluredImage.Copy().Convert <Gray, byte>())
{
return(mask.ThresholdBinary(new Gray((int)avg.Intensity), new Gray(255)));
}
}
}
private Image <Gray, byte> CreateMaskOfOverInappropriateColorProportions(Image <Gray, byte> grayImage, Image <Bgr, byte> image, double tone, BgrColor color, CmpType cmpType, double margin)
{
double interval = 0;
float count = (image?.CountNonzero()[(int)color]) ?? 1;
float nonZeroCount;
Image <Gray, byte> resultMask = grayImage.CopyBlank();
switch (cmpType)
{
case CmpType.LessThan: { interval = Math.Round((1 - margin) * tone, 3); } break;
case CmpType.GreaterThan: { interval = Math.Round((1 + margin) * tone, 3); } break;
default: { interval = tone; } break;
}
using (Image <Gray, byte> model = grayImage.Mul(interval * 3.0))
{
using (Image <Gray, byte> cmpImage = _image[(int)color].Cmp(model[0], cmpType))
{
using (Image <Gray, byte> disColorMask = cmpImage.ThresholdBinary(new Gray(1), new Gray(255)))
{
Mat kernel = CvInvoke.GetStructuringElement(ElementShape.Ellipse, new Size(3, 3), new Point(-1, -1));
CvInvoke.MorphologyEx(disColorMask, resultMask, MorphOp.Open, kernel, new Point(-1, -1), 1, BorderType.Replicate, new MCvScalar(1.0));
nonZeroCount = resultMask[0]?.CountNonzero()[0] ?? 0;
}
}
}
if (nonZeroCount / count > 0.20 && margin < 1.0)
{
margin += 0.05;
return(CreateMaskOfOverInappropriateColorProportions(grayImage, image, tone, color, cmpType, margin));
}
else
{
return(resultMask);
}
}
