public static AskGetDitherResult AskGetDithering()
{
string input;
int index = -2;
AskGetDitherResult result = new AskGetDitherResult();
while (true)
{
Console.WriteLine("\nwould you like to dither the image? (y/n)");
input = Console.ReadLine().Trim().ToLower();
if (input == "n")
{
return(result);
}
if (input == "y")
{
break;
}
}
while (true)
{
Console.WriteLine("\nplease input the number of the pixel transform you'd like to use (-1 to cancel)");
Console.WriteLine(
"\t0 : Monochrome\n\t" +
"1 : Color 232\n\t"
);
input = Console.ReadLine().Trim().ToLower();
if (int.TryParse(input, out index))
{
if (index == -1)
{
return(result);
}
if (index == 0)
{
byte i = 128;
while (true)
{
Console.WriteLine("input the color threshold (0 - 255)");
input = Console.ReadLine().Trim().ToLower();
if (byte.TryParse(input, out i))
{
i = ((int)i).ToByte();
break;
}
}
result.Threshold = i;
result.Transform = GetPixelTransform(1, i);
break;
}
if (index > 0 && index < 4)
{
result.Transform = GetPixelTransform(index.ToByte(), 0);
break;
}
}
}
while (true)
{
Console.WriteLine("\nplease input the number of the dithering algorithm you'd like to use (-1 to cancel)");
Console.WriteLine(
"\t0 : Floyd Steinberg\n\t" +
"1 : Burks\n\t" +
"2 : Jarvis Judice Ninke\n\t" +
"3 : Stucki\n\t" +
"4 : Sierra 3\n\t" +
"5 : Sierra 2\n\t" +
"6 : Sierra Lite\n\t" +
"7 : Atkinson\n\t" +
"8 : Random\n\t" +
"9 : Bayer 2\n\t" +
"10 : Bayer 3\n\t" +
"11 : Bayer 4\n\t" +
"12 : Bayer 8\n"
);
input = Console.ReadLine().ToLower().Trim();
if (int.TryParse(input, out index))
{
if (index == -1)
{
return(result);
}
if (index < 13 && index > -1)
{
result.DitherAlgorithm = GetDitheringInstance(index.ToByte());
break;
}
}
}
return(result);
}
static void Main(string[] args)
{
string fileName, outName;
bool createScanFile = false;
Size autoSizeOutImage = Size.Empty;
AskGetDitherResult dither = new AskGetDitherResult();
if (args.Length > 0)
{
fileName = args[0];
if (File.Exists(fileName))
{
outName = Path.GetFileNameWithoutExtension(fileName) + "_convert.png";
}
else
{
fileName = GetFileName();
outName = Path.GetFileNameWithoutExtension(fileName) + "_convert.png";
}
switch (args.Length)
{
case 2:
autoSizeOutImage = ParseSize(args[1]);
break;
case 3:
int w = -1, h = -1;
autoSizeOutImage = new Size(-1, -1);
if (int.TryParse(args[1], out w))
{
autoSizeOutImage.Width = w;
}
if (int.TryParse(args[2], out h))
{
autoSizeOutImage.Height = h;
}
if (autoSizeOutImage.Width == -1 || autoSizeOutImage.Height == -1)
{
autoSizeOutImage = Size.Empty;
break;
}
break;
}
}
else
{
fileName = GetFileName();
outName = Path.GetFileNameWithoutExtension(fileName) + "_convert.png";
Console.WriteLine("");
autoSizeOutImage = AskGetSize();
Console.WriteLine("");
dither = AskGetDithering();
createScanFile = AskCreateScanFile();
}
Bitmap data = LoadImage(fileName);
if (data == null)
{
Console.WriteLine("there was an error loading image, program will exit");
Console.ReadLine();
return;
}
if (autoSizeOutImage != Size.Empty)
{
Bitmap newScaled = new Bitmap(autoSizeOutImage.Width, autoSizeOutImage.Height);
using (Graphics g = Graphics.FromImage(newScaled))
{
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
g.DrawImage(data, new Rectangle(0, 0, autoSizeOutImage.Width, autoSizeOutImage.Height), new Rectangle(0, 0, data.Width, data.Height), GraphicsUnit.Pixel);
}
data.Dispose();
data = newScaled;
}
Console.WriteLine("\nconverting...");
// user wants dithering
if (dither.DitherAlgorithm != null)
{
// request image tansform disposes of the input image so we don't need to
// do anythign special to dispose of the unused data
using (Bitmap bmp = DitherHelper.RequestImageTransform(data, dither.Transform, dither.DitherAlgorithm))
{
if (createScanFile)
{
CreateScanFile(bmp, outName);
}
bmp.Save(outName, ImageFormat.Png);
}
}
else
{
Color color;
Bitmap newBitmap = new Bitmap(data.Width, data.Height);
using (Graphics g = Graphics.FromImage(newBitmap))
{
for (int x = 0; x < data.Width; x++)
{
for (int y = 0; y < data.Height; y++)
{
color = data.GetPixel(x, y);
newBitmap.SetPixel(x, y, dye[closestColor2(dye, color)]);
}
}
g.DrawImage(newBitmap, new Point(0, 0));
}
if (createScanFile)
{
CreateScanFile(newBitmap, outName);
}
newBitmap.Save(outName, ImageFormat.Png);
data.Dispose();
}
Console.WriteLine("done.\n");
Console.WriteLine(outName);
//Console.ReadLine();
}