public void Reset_AllSettingsChanged_RestoredToDefault()
{
var script = new TextCleanerScript();
script.AdaptiveBlur = 2;
script.BackgroundColor = new MagickColor("yellow");
script.CropOffset.Left = 1;
script.CropOffset.Top = 1;
script.CropOffset.Right = 1;
script.CropOffset.Bottom = 1;
script.Enhance = TextCleanerEnhance.Normalize;
script.FilterOffset = (Percentage)10;
script.FilterSize = 10;
script.Layout = TextCleanerLayout.Landscape;
script.MakeGray = true;
script.Padding = 15;
script.Rotation = TextCleanerRotation.Clockwise;
script.Saturation = (Percentage)150;
script.Sharpen = 1;
script.SmoothingThreshold = (Percentage)50;
script.Trim = true;
script.Unrotate = true;
script.Reset();
AssertDefaults(script);
}
public void Execute_InputNull_ThrowsException()
{
ExceptionAssert.ThrowsArgumentException <ArgumentNullException>("input", () =>
{
var script = new TextCleanerScript();
script.Execute(null);
});
}
public void Test_Execute_Null()
{
ExceptionAssert.ThrowsArgumentException <ArgumentNullException>(() =>
{
var script = new TextCleanerScript();
script.Execute(null);
}, "input");
}
private void Test_Execute(string input, Action <TextCleanerScript> action, string output)
{
string inputFile = GetInputFile(input);
using (MagickImage image = new MagickImage(inputFile))
{
TextCleanerScript script = new TextCleanerScript();
action(script);
MagickImage scriptOutput = script.Execute(image);
TestOutput(scriptOutput, output);
}
}
private static void AssertInvalidOperation(string expectedMessage, Action <TextCleanerScript> initAction)
{
var script = new TextCleanerScript();
using (var logo = new MagickImage(Images.Logo))
{
initAction(script);
ExceptionAssert.Throws <InvalidOperationException>(expectedMessage, () =>
{
script.Execute(logo);
});
}
}
private void AssertExecute(string input, string methodName, Action <TextCleanerScript> action)
{
string inputFile = GetInputFile(input);
/* LosslessCompress(inputFile); */
using (var image = new MagickImage(inputFile))
{
TextCleanerScript script = new TextCleanerScript();
action(script);
using (var scriptOutput = script.Execute(image))
{
string outputFile = GetOutputFile(input, methodName);
AssertOutput(scriptOutput, outputFile);
}
}
}
private static void AssertDefaults(TextCleanerScript script)
{
Assert.AreEqual(0.0, script.AdaptiveBlur);
ColorAssert.AreEqual(new MagickColor("white"), script.BackgroundColor);
Assert.AreEqual(0, script.CropOffset.Left);
Assert.AreEqual(0, script.CropOffset.Top);
Assert.AreEqual(0, script.CropOffset.Right);
Assert.AreEqual(0, script.CropOffset.Bottom);
Assert.AreEqual(TextCleanerEnhance.Stretch, script.Enhance);
Assert.AreEqual((Percentage)5, script.FilterOffset);
Assert.AreEqual(15, script.FilterSize);
Assert.AreEqual(TextCleanerLayout.Portrait, script.Layout);
Assert.AreEqual(false, script.MakeGray);
Assert.AreEqual(0, script.Padding);
Assert.AreEqual(TextCleanerRotation.None, script.Rotation);
Assert.AreEqual((Percentage)200, script.Saturation);
Assert.AreEqual(0.0, script.Sharpen);
Assert.AreEqual(null, script.SmoothingThreshold);
Assert.AreEqual(false, script.Trim);
Assert.AreEqual(false, script.Unrotate);
}
public void Constructor_SettingsSetToDefaults()
{
var script = new TextCleanerScript();
AssertDefaults(script);
}
public static void EnhanceImageQuality(string ImageDirectory)
{
// do image Enhance then call Do OCR
// convert - density 600 input.pdf output.tif;
//System.Drawing.Image SelectedImage = new System.Drawing.Image();
DirectoryInfo EnhancedImageDir = new DirectoryInfo(@"C:\OCR\EnhancedImage\");
Bitmap orgimg = (Bitmap)Bitmap.FromFile(ImageDirectory);
Bitmap bitmap = (Bitmap)Bitmap.FromFile(ImageDirectory);
Bitmap image2 = Grayscale.CommonAlgorithms.BT709.Apply(bitmap);
Rectangle rec = new Rectangle(0, 0, bitmap.Width, bitmap.Height);
BitmapData bitmapdata = bitmap.LockBits(rec, ImageLockMode.ReadWrite, PixelFormat.Format8bppIndexed);
// create instance of skew checker
DocumentSkewChecker skewChecker = new DocumentSkewChecker();
// get documents skew angle
double angle = skewChecker.GetSkewAngle(bitmapdata);
// create rotation filter
RotateBilinear rotationFilter = new RotateBilinear(-angle);
rotationFilter.FillColor = Color.White;
// rotate image applying the filter
bitmap.UnlockBits(bitmapdata);
Bitmap rotatedImage = rotationFilter.Apply(orgimg);
rotatedImage.Save(ImageDirectory + ".tif");
using (MagickImage image = new MagickImage(ImageDirectory))
{
TextCleanerScript Cleaner = new TextCleanerScript();
// Cleaner.FilterSize = 12; // filter to clean up background;
// Cleaner.FilterOffset = (Percentage)3; //filter in percent to reduce noise
// Cleaner.Saturation = (Percentage)200; // high value to Saturation
//// Cleaner.Unrotate = true;
// var newImage1 = Cleaner.Execute(image);
// //newImage1.CannyEdge(); selcet the inner objects in the image
// newImage1.Density = new PointD(600, 600);
// newImage1.Write(EnhancedImageDir + Path.GetFileName(ImageDirectory)
// + ".tif");
AutotrimScript WhiteB = new AutotrimScript();
// WhiteB.InnerTrim = true;
var a = WhiteB.GetLargestAreaP(image);
WhiteboardScript AoutoTrim = new WhiteboardScript();
//AoutoTrim.SetCoordinates(new Coordinate(01, 53), new Coordinate(313, 31),
//new Coordinate(331, 218), new Coordinate(218, 200));
//AoutoTrim.Enhance = WhiteboardEnhancements.Both;
//AoutoTrim.FilterSize = 25; // filter to clean up background;
//AoutoTrim.FilterOffset = (Percentage)3; //filter in percent to reduce noise
//AoutoTrim.Saturation = (Percentage)200; // high value to Saturation
//AoutoTrim.SetCoordinates(new Coordinate(a[0].X, a[0].Y), new Coordinate(a[1].X, a[1].Y),
//new Coordinate(a[2].X, a[2].Y), new Coordinate(a[3].X, a[3].Y));
var new2mage2 = AoutoTrim.Execute(image);
// new2mage2.Deskew((Percentage)2);
AoutoTrim.SetCoordinates(new Coordinate(13, 3), new Coordinate(342, 6),
new Coordinate(331, 467), new Coordinate(38, 482));
AoutoTrim.Enhance = WhiteboardEnhancements.Both;
// new2mage2.Density= new PointD(300, 300);
new2mage2 = WhiteB.Execute(new2mage2);
new2mage2 = Cleaner.Execute(new2mage2);
new2mage2.Density = new PointD(600, 600);
new2mage2.Write(EnhancedImageDir + Path.GetFileName(ImageDirectory)
+ "2" + ".tif");
string dir12 = (EnhancedImageDir + Path.GetFileName(ImageDirectory)
+ "2" + ".tif");
Bitmap imageTobeDeske = new Bitmap(dir12);
gmseDeskew deskew = new gmseDeskew();
deskew.New(imageTobeDeske);
double angel = deskew.GetSkewAngle();
if (angel > 0)
{
angel = angel * -1;
}
WhiteB.BorderColorLocation = new Coordinate(10, 10);
//AoutoTrim.SetCoordinates(ad);
//WhiteB.ColorFuzz = (Percentage)20;
//var new2mage3 = WhiteB.Execute(image);
//new2mage3 = Cleaner.Execute(new2mage3);
//new2mage3.Write(EnhancedImageDir + Path.GetFileName(ImageDirectory)
// + "3" + ".tif");
}
}
public void Test_Settings()
{
var script = new TextCleanerScript();
using (var logo = new MagickImage(Images.Logo))
{
script.Execute(logo);
ExceptionAssert.Throws <InvalidOperationException>(() =>
{
script.AdaptiveBlur = -1;
script.Execute(logo);
});
ExceptionAssert.Throws <InvalidOperationException>(() =>
{
script.Reset();
script.CropOffset.Bottom = -1;
script.Execute(logo);
});
ExceptionAssert.Throws <InvalidOperationException>(() =>
{
script.Reset();
script.CropOffset.Left = -1;
script.Execute(logo);
});
ExceptionAssert.Throws <InvalidOperationException>(() =>
{
script.Reset();
script.CropOffset.Right = -1;
script.Execute(logo);
});
ExceptionAssert.Throws <InvalidOperationException>(() =>
{
script.Reset();
script.CropOffset.Top = -1;
script.Execute(logo);
});
ExceptionAssert.Throws <InvalidOperationException>(() =>
{
script.Reset();
script.FilterSize = -1;
script.Execute(logo);
});
ExceptionAssert.Throws <InvalidOperationException>(() =>
{
script.Reset();
script.Padding = -1;
script.Execute(logo);
});
ExceptionAssert.Throws <InvalidOperationException>(() =>
{
script.Reset();
script.Sharpen = -1;
script.Execute(logo);
});
ExceptionAssert.Throws <InvalidOperationException>(() =>
{
script.Reset();
script.Saturation = (Percentage)(-1);
script.Execute(logo);
});
ExceptionAssert.Throws <InvalidOperationException>(() =>
{
script.Reset();
script.SmoothingThreshold = (Percentage)150;
script.Execute(logo);
});
ExceptionAssert.Throws <InvalidOperationException>(() =>
{
script.Reset();
script.SmoothingThreshold = (Percentage)(-50);
script.Execute(logo);
});
}
}