void captcha_OnBeforeSegmentation(Segmenter s)
{
//s.FloodFill(new Point(2, 2), 60, Color.White);
//s.Binarize(20);
//s.ColorFillBlobs(50, Color.White);
//s.RemoveSmallBlobs(10, 3, 3, Color.White);
//s.Image.Save("test.bmp");
//s.Image = s.Image.Resize(s.Image.Width * 6, s.Image.Height * 3);
s.Crop(new Rectangle(10, 10, 200 - 20, 50 - 20));
s.Resize(1000, 120);
s.ColorFillBlobs(30, Color.White, 30);
s.TrySave("test1.bmp");
//s.ErodeShapes(Color.White);
//s.ErodeShapes(Color.White);
//s.ErodeShapes(Color.White);
//s.ErodeShapes(Color.White);
s.BlackAndWhite();
s.RemoveSmallBlobs(150, 15, 25, Color.White);
s.ResizeRotateCut();
s.ColorFillBlobs(1, Color.White, 1);
s.RemoveSmallBlobs(150, 15, 25, Color.White);
//s.ForEachPixel(c => Color.FromArgb((c.R + c.G + c.B) / 3, (c.R + c.G + c.B) / 3, (c.R + c.G + c.B) / 3));
s.TrySave("test2.bmp");
}
void captcha_OnBeforeSegmentation(Segmenter s)
{
foreach (string command in PreconditionCode)
{
if (fatalError)
{
break;
}
try
{
// Lines that start with comment characters are completely ignored
if (command.Trim().StartsWith(CONST.COMMENT_CHARACTER))
{
continue;
}
// Get the list of line arguments
List<string> args = command.Trim().Split(new string[] { CONST.ARGUMENT_SEPERATER }, StringSplitOptions.RemoveEmptyEntries).Select(a => a.Trim()).ToList();
args[0] = args[0].ToUpper();
switch (args.GetArg(0))
{
// #SKOTDOC.BLOCKSTART RESIZE
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Resize the image to a specified width and height.
case "RESIZE":
int rswidth = args.GetArg(1).ToInt();
int rsheight = args.GetArg(2).ToInt();
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Resize each image to a specified width and height.
case 2:
// #SKOTDOC.FUNCARGINT Width The width to resize image to.
// #SKOTDOC.FUNCARGINT Height The height to resize image to.
s.Resize(rswidth, rsheight);
Out("Image Resized to " + rswidth + "x" + rsheight);
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to RESIZE");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART ERODE
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Erodes the edges of blobs within an image.
case "ERODE":
int etimes = args.GetArg(1).ToInt();
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Erode the edges of all blobs, where a blob is defined as any pixel grouping completely surrounded by White.
case 0:
s.ErodeShapes(Color.White);
Out("Image Edges Eroded");
break;
// #SKOTDOC.FUNCEND
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Erode the edges of all blobs, where a blob is defined as any pixel grouping completely surrounded by a given color.
case 1:
// #SKOTDOC.FUNCARGINT Times Number of times to erode the edges.
for (int i = 0; i < etimes; i++)
{
s.ErodeShapes(Color.White);
}
Out("Image Edges Eroded");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to ERODE");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART GROW
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Grow the size of all blobs in the image by one pixel.
case "GROW":
int gtimes = args.GetArg(1).ToInt();
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Grow the edges of all blobs, where a blob is defined as any pixel grouping completely surrounded by White.
case 0:
s.GrowShapes(Color.White);
Out("Image Edges Grown");
break;
// #SKOTDOC.FUNCEND
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Grow the edges of all blobs, where a blob is defined as any pixel grouping completely surrounded by a given color.
case 1:
// #SKOTDOC.FUNCARGINT Times Number of times to grow the edges.
for (int i = 0; i < gtimes; i++)
{
s.GrowShapes(Color.White);
}
Out("Image Edges Grown");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to GROW");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART OUTLINE
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Performs a convolutional filter on the image that outlines edges.
case "OUTLINE":
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Outline all edges in the image using a convolutional filter.
case 0:
s.Outline();
Out("Image Outline Filter Applied");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to OUTLINE");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART SUBTRACT
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Perform a pixel-by-pixel subtraction of a given image from the working image and set each pixel value as the difference between the two.
case "SUBTRACT":
string img = args.GetQuotedArg(1);
string imBase64 = args.GetQuotedArg(2);
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Subtract one image from another.
case 1:
// #SKOTDOC.FUNCARGSTR ImageLocation The absolute or relative location to the image to subtract from the working image.
Bitmap imageToSub = null;
lock (subtractionImages)
{
if (subtractionImages.ContainsKey(img.ToUpper()))
{
imageToSub = subtractionImages[img.ToUpper()].CloneFull();
}
else
{
// Save it so that we don't have to keep loading it
imageToSub = (Bitmap)Bitmap.FromFile(img);
subtractionImages.Add(img.ToUpper(), imageToSub.CloneFull());
}
}
s.Subtract(imageToSub);
Out("Image Subtracted");
break;
// #SKOTDOC.FUNCEND
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Subtract one image from another.
case 2:
// #SKOTDOC.LITERAL Base64 Denotes that the image data is encoded and listed here in base64.
// #SKOTDOC.FUNCARGSTR String The Base64 string that contains the bitmap image data.
Bitmap imageToSub2 = null;
lock (subtractionImages)
{
if (subtractionImages.ContainsKey(imBase64.GetHashCode().ToString()))
{
imageToSub2 = subtractionImages[imBase64.GetHashCode().ToString()].CloneFull();
}
else
{
// Save it so that we don't have to keep loading it
imageToSub2 = (Bitmap)Bitmap.FromStream(new MemoryStream(Convert.FromBase64String(imBase64)));
subtractionImages.Add(imBase64.GetHashCode().ToString(), imageToSub2.CloneFull());
}
}
s.Subtract(imageToSub2);
Out("Image Subtracted");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to SUBTRACT");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART MEDIAN
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Perform a convolutional median filter on the image.
case "MEDIAN":
int mtimes = args.GetArg(1).ToInt();
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Perform a convolutional median filter on the image one time.
case 0:
s.Median();
Out("Median Filter Applied");
break;
// #SKOTDOC.FUNCEND
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Perform a convolutional median filter on the image several times.
case 1:
// #SKOTDOC.FUNCARGINT NumTimes The number of times to apply the Median filter to the image.
for (int i = 0; i < mtimes; i++)
{
s.Median();
}
Out("Median Filter Applied");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to MEDIAN");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART INVERT
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Invert the colors in the image.
case "INVERT":
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Invert the colors in the image.
case 0:
s.Invert();
Out("Image Inverted");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to INVERT");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART CROP
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Crop the image.
case "CROP":
int cx = args.GetArg(1).ToInt();
int cy = args.GetArg(2).ToInt();
int cw = args.GetArg(3).ToInt();
int ch = args.GetArg(4).ToInt();
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Crop the image to a given rectangle.
case 4:
// #SKOTDOC.FUNCARGINT X The left side of the rectangle.
// #SKOTDOC.FUNCARGOMT Y The top of the rectangle.
// #SKOTDOC.FUNCARGINT Width The width of the rectangle.
// #SKOTDOC.FUNCARGINT Height The height of the rectangle.
s.Crop(new Rectangle(cx, cy, cw, ch));
Out("Image Cropped");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to CROP");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART BILATERALSMOOTH
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Performs a bilateral smoothing (edge preserving smoothing) and noise reduction filter on an image.
case "BILATERALSMOOTH":
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Perfrom an edge preserving smoothing algorithm.
case 0:
s.EdgePreservingSmooth();
Out("Image Smoothed");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to BILATERALSMOOTH");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART COLORFILLBLOBS
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Fill each unique blob in an image with a random color.
// #SKOTDOC.BLOCKDESC A group of adjacent pixels is considered a single blob when they are all similar to each other in the L`*`a`*`b`*` color space below a given threshold.
// #SKOTDOC.BLOCKDESC In the L`*`a`*`b`*` color space, a threshold of 2.3 is considered to be a change "just noticible to the human eye."
case "COLORFILLBLOBS":
double cfbtolerance = args.GetArg(1).ToDouble();
double cfbbkgtol = args.GetArg(2).ToDouble();
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Fill all blobs within a 1.0 distance in the L`*`a`*`b`*` colorspace with a random color.
case 0:
s.ColorFillBlobs(1.0, Color.White, 1.0);
Out("Blobs within 1.00 tolerance (L*a*b* color space) filled");
break;
// #SKOTDOC.FUNCEND
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Fill all blobs within a given distance in the L`*`a`*`b`*` colorspace with a random color.
case 2:
// #SKOTDOC.FUNCARGDBL ColorTolerance The maximum Delta E difference between two (L`*`a`*`b`*`) colors to allow when filling a blob. I.E., the colors have to be at most this close together to be considered to be in the same blob.
// #SKOTDOC.FUNCARGDBL BackgroundTolerance The maximum Delta E difference between a pixel (L`*`a`*`b`*`) and the background to allow when filling.
s.ColorFillBlobs(cfbtolerance, Color.White, cfbbkgtol);
Out("Blobs within " + cfbtolerance.ToString("0.00") + " tolerance (L*a*b* color space) filled");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to COLORFILLBLOBS");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART REMOVESMALLBLOBS
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Remove blobs (by filling them with the background color) from an image that are too small.
case "REMOVESMALLBLOBS":
int rsbcount = args.GetArg(1).ToInt();
int rsbwidth = args.GetArg(2).ToInt();
int rsbheight = args.GetArg(3).ToInt();
int rsbtolerance = args.GetArg(4).ToInt();
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Remove blobs from an image that are too small by either pixel count or X and Y dimensions.
case 3:
// #SKOTDOC.FUNCARGINT MinPixelCount The smallest number of pixels a blob can be made of.
// #SKOTDOC.FUNCARGINT MinWidth The smallest width a blob can be.
// #SKOTDOC.FUNCARGINT MinHeight The smallest height a blob can be.
s.RemoveSmallBlobs(rsbcount, rsbwidth, rsbheight, Color.White);
Out("Small blobs removed from image");
break;
// #SKOTDOC.FUNCEND
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Fill all blobs within a given distance in the L`*`a`*`b`*` colorspace with a random color.
case 4:
// #SKOTDOC.FUNCARGINT MinPixelCount The smallest number of pixels a blob can be made of.
// #SKOTDOC.FUNCARGINT MinWidth The smallest width a blob can be.
// #SKOTDOC.FUNCARGINT MinHeight The smallest height a blob can be.
// #SKOTDOC.FUNCARGINT ColorTolerance The RGB tolerance in color when flood filling
s.RemoveSmallBlobs(rsbcount, rsbwidth, rsbheight, Color.White, rsbtolerance);
Out("Small blobs removed from image");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to REMOVESMALLBLOBS");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART BLACKANDWHITE
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Convert the image to black and white, where anything not white turns black (even the color #FEFEFE).
// #SKOTDOC.BLOCKDESC If you need to choose the threshold yourself, then see BINARIZE.
case "BLACKANDWHITE":
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Flatten an image to black and white.
case 0:
s.BlackAndWhite();
Out("Image binarized to black and white");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to BLACKANDWHITE");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART BINARIZE
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Convert the image to black and white, where anything above a certain threshold is turned white.
case "BINARIZE":
int thresh = args.GetArg(1).ToInt();
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Convert the image to black and white, where anything above a given threshold is turned white.
case 1:
// #SKOTDOC.FUNCARGINT Threshold A threshold value between 0 and 255 that determines what colors turn black and which turn white.
s.Binarize(thresh);
Out("Image binarized to black and white");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to BINARIZE");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART REMOVENONCOLOR
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC White out all pixels that are not a color (any shade of grey). (Useful when a CAPTCHA only colors the letters and not the background.)
case "REMOVENONCOLOR":
int dist = args.GetArg(1).ToInt();
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Remove all grayscale colors from the image leaving only colors.
case 0:
s.RemoveNonColor(3);
Out("All grayscale colors removed from image");
break;
// #SKOTDOC.FUNCEND
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Remove all colors withing a certain threshold of a shade of gray from the image leaving only colors.
case 1:
// #SKOTDOC.FUNCARGINT Distance The threshold value which determines how close a color has to be to gray to be removed.
s.RemoveNonColor(dist);
Out("All grayscale colors removed from image");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to REMOVENONCOLOR");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART KEEPONLYMAINCOLOR
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Finds the color that occurrs most often in the image and removes all other colors that are not the most common color.
// #SKOTDOC.BLOCKDESC This is great if the main CAPTCHA text is all one color and that text always represents the most common color in the image (in which case this function single-handedly segments the letters from the background).
case "KEEPONLYMAINCOLOR":
int th = args.GetArg(1).ToInt();
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Find the color that occurrs most often in the image within a certain threshold and remove all other colors that are not withing a given threshold from that color.
case 1:
// #SKOTDOC.FUNCARGINT Threshold The threshold value which determines how close a color has to be to be kept.
s.KeepOnlyMostCommonColor(th);
Out("All but the most common color removed");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to KEEPONLYMAINCOLOR");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART SAVESAMPLE
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Save a sample of the working image for debugging purposes. This is helpful when writing a script, as you can see every step along the way if you wish.
case "SAVESAMPLE":
string filename = args.GetQuotedArg(1);
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Save a sample of the working image.
case 1:
// #SKOTDOC.FUNCARGSTR FileLocation The name and location of where to save the image to.
s.TrySave(filename);
Out("Image saved as " + args.GetArg(1));
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to SAVESAMPLE");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART MEANSHIFT
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Apply a mean shift filter to the image. This will effectively flatten out color groups within a certain tolerance.
case "MEANSHIFT":
int msiterations = args.GetArg(1).ToInt();
int msradius = args.GetArg(2).ToInt();
double mstolerance = args.GetArg(3).ToDouble();
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Apply a 1 iteration mean shift filter with a radius of 1 and a tolerance of 1.
case 0:
s.MeanShiftFilter(1, 1, 1);
Out("Mean Shift Filter (" + msiterations + " iterations)");
break;
// #SKOTDOC.FUNCEND
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Apply a mean shift filter a given number of times with a given radius and a given tolerance.
case 3:
// #SKOTDOC.FUNCARGINT Iterations The number of times to repeat the filter on the image.
// #SKOTDOC.FUNCARGINT Radius The radius of the filter.
// #SKOTDOC.FUNCARGDBL Tolerance The tolerance that determines how close in color pixels have to be if they are to be considered in the same group.
s.MeanShiftFilter(msiterations, msradius, mstolerance);
Out("Mean Shift Filter (" + msiterations + " iterations)");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to MEANSHIFT");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART FILLWHITE
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Fill a color into a region of an image.
case "FILLWHITE":
int fwx = args.GetArg(1).ToInt();
int fwy = args.GetArg(2).ToInt();
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Fill the background color into a region of an image.
case 2:
// #SKOTDOC.FUNCARGINT X The X location of the region to start filling from.
// #SKOTDOC.FUNCARGINT Y The Y location of the region to start filling from.
s.FloodFill(new Point(fwx, fwy), 1, Color.White);
Out("Point flood filled with white");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to MEANSHIFT");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART CONVOLUTE
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Perform a convolutional filter on the image.
case "CONVOLUTE":
int c_a = args.GetArg(1).ToInt();
int c_b = args.GetArg(2).ToInt();
int c_c = args.GetArg(3).ToInt();
int c_d = args.GetArg(4).ToInt();
int c_e = args.GetArg(5).ToInt();
int c_f = args.GetArg(6).ToInt();
int c_g = args.GetArg(7).ToInt();
int c_h = args.GetArg(8).ToInt();
int c_i = args.GetArg(9).ToInt();
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Perform a convolutional filter on the image with a 3x3 kernel.
case 9:
// #SKOTDOC.FUNCARGINT A1 The upper-left value of the 3x3 kernel.
// #SKOTDOC.FUNCARGINT A2 The upper-middle value of the 3x3 kernel.
// #SKOTDOC.FUNCARGINT A3 The upper-right value of the 3x3 kernel.
// #SKOTDOC.FUNCARGINT B1 The middle-left value of the 3x3 kernel.
// #SKOTDOC.FUNCARGINT B2 The center value of the 3x3 kernel.
// #SKOTDOC.FUNCARGINT B3 The middle-right value of the 3x3 kernel.
// #SKOTDOC.FUNCARGINT C1 The lower-left value of the 3x3 kernel.
// #SKOTDOC.FUNCARGINT C2 The lower-middle value of the 3x3 kernel.
// #SKOTDOC.FUNCARGINT C3 The lower-right value of the 3x3 kernel.
s.ConvolutionFilter(c_a, c_b, c_c, c_d, c_e, c_f, c_g, c_h, c_i);
Out("Convolution filter applied to image.");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to CONVOLUTE");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART HISTOGRAMROTATE
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Rotate an image using trial and error until a best angle is found (measured by a vertical histogram).
// #SKOTDOC.BLOCKDESC Use this when an image has slanted letters and you want them to be right side up.
case "HISTOGRAMROTATE":
switch (args.Count - 1)
{
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Rotate an image using trial and error until a best angle is found (measured by a vertical histogram).
case 0:
s.ResizeRotateCut();
Out("Image rotated until best histogram was found");
break;
// #SKOTDOC.FUNCEND
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Rotate an image using trial and error until a best angle is found (measured by a vertical histogram).
case 1:
// #SKOTDOC.LITERAL TRUE Overlay the resulting image with a completely useless (albeit cool to look at) histogram graph.
s.ResizeRotateCut(true);
Out("Image rotated until best histogram was found (HISTOGRAM DEBUG OVERLAY APPLIED)");
break;
// #SKOTDOC.FUNCEND
default:
Error("Wrong number of arguments in call to SAVESAMPLE");
break;
}
break;
// #SKOTDOC.BLOCKEND
// #SKOTDOC.BLOCKSTART WAIT
// #SKOTDOC.BLOCKTYPE Preprocess
// #SKOTDOC.BLOCKDESC Wait for a key press from the user to continue.
case "WAIT":
// #SKOTDOC.FUNCSTART
// #SKOTDOC.FUNCDESC Wait for a key press from the user to continue.
// #SKOTDOC.FUNCEND
Console.WriteLine("Press a key to continue.");
try
{
Console.ReadKey();
}
catch
{
Console.Read();
}
break;
// #SKOTDOC.BLOCKEND
default:
Error("Unknown precondition command \"" + args.GetArg(0) + "\"");
break;
}
}
catch (ImageProcessingException ex)
{
Error(ex.ToString());
}
catch (Exception ex)
{
try
{
File.WriteAllText("ERROR.txt", ex.ToString());
Error("Error performing an image operation! Details have been saved to ERROR.txt.");
Error(ex.ToString());
}
catch
{
Error(ex.ToString());
}
}
}
}