private Bitmap processImgForScanning(Bitmap imgInput)
{
using (MemoryStream memstream = new MemoryStream())
{
imgInput.Save(memstream, ImageFormat.Tiff);
MagickImage img = new MagickImage(memstream.ToArray());
if (sharpen)
{
img.Sharpen((int)sharpenIntX.Value, (int)sharpenIntY.Value, Channels.All);
}
if (autoGamma)
{
img.AutoGamma();
}
if (enhance)
{
img.Enhance();
}
if (contrast)
{
img.Contrast();
}
if (autoLevel)
{
img.AutoLevel();
}
if (autoOrient)
{
img.AutoOrient();
}
if (despeckle)
{
img.Despeckle();
}
if (medianFilter)
{
img.MedianFilter((int)medianInt.Value);
}
if (unsharpmask)
{
img.Unsharpmask(6.8, 4, 4,0);
}
if (wtThreshold)
{
img.LinearStretch((float)0.9, 0.1);
//img.WhiteThreshold((int)wtThresInt.Value);
//img.ReduceNoise();
//img.Grayscale(PixelIntensityMethod.Brightness);
}
if (invert)
{
img.Negate();
}
return img.ToBitmap();
}
}
private static void ExecuteEnhance(MagickImage image)
{
image.Enhance();
}
public void Test_Enhance()
{
using (MagickImage enhanced = new MagickImage(Files.NoisePNG))
{
enhanced.Enhance();
using (MagickImage original = new MagickImage(Files.NoisePNG))
{
Assert.AreEqual(0.0115, enhanced.Compare(original, ErrorMetric.RootMeanSquared), 0.0003);
}
}
}