public void TestSingleThresholdConverter()
{
var image = Util.ImageFile.LoadBmpImage("..\\..\\..\\TestImages\\lenna_gray.bmp");
image = new SingleThresholdConverter(image, 0).Convert().Image;
Util.ImageFile.SaveBmpImage(image, "..\\..\\..\\TestImages\\lenna_single_threshold.bmp");
image = Util.ImageFile.LoadBmpImage("..\\..\\..\\TestImages\\lenna_single_threshold.bmp");
// File header
Assert.Equal(0x4D42, image.FileHeader.Type);
Assert.Equal((uint)(14 + 40 + 2 * 4 + 320 * 300 / 8), image.FileHeader.Size);
Assert.Equal(0, image.FileHeader.Reserved1);
Assert.Equal(0, image.FileHeader.Reserved2);
Assert.Equal((uint)(14 + 40 + 2 * 4), image.FileHeader.OffBits);
// Info header
Assert.Equal(40u, image.InfoHeader.Size);
Assert.Equal(300, image.InfoHeader.Width);
Assert.Equal(300, image.InfoHeader.Height);
Assert.Equal(1u, image.InfoHeader.Planes);
Assert.Equal(1u, image.InfoHeader.BitCount);
Assert.Equal(0u, image.InfoHeader.Compression);
Assert.Equal((uint)(320 * 300 / 8), image.InfoHeader.SizeImage);
Assert.Equal(0, image.InfoHeader.XPelsPerMeter);
Assert.Equal(0, image.InfoHeader.YPelsPerMeter);
Assert.Equal(0u, image.InfoHeader.ClrUsed);
Assert.Equal(0u, image.InfoHeader.ClrImportanet);
// Palette
Assert.Equal(2, image.Palette.Length);
Assert.Equal(0, image.Palette[0].Red);
Assert.Equal(0, image.Palette[0].Green);
Assert.Equal(0, image.Palette[0].Blue);
Assert.Equal(255, image.Palette[1].Red);
Assert.Equal(255, image.Palette[1].Green);
Assert.Equal(255, image.Palette[1].Blue);
Assert.Equal(0, image.Palette[0].Flags);
}
private static void ModuleOne(BmpImage image)
{
/*
* 1.检测图像的类型
* (1. gray to binary
* (1. danyuzhi
* (2. dither
* (3. ordered dither
* (2. color to gray
* (1. RGB -> HSI
* (2. RGB -> YCbCr
*/
bool isGray = true;
int photoFormat = CheckPhoto(image);
//256 color
if (photoFormat == 1)
{
System.Console.Write("检测到图片为灰度图像：");
System.Console.WriteLine("可进行的操作：\n1.单阈值法\n2.dither\n3.ordered dither\n0.返回");
System.Console.Write("选择的操作是：");
bool inputNum = false;
int argument;
do
{
try
{
int num = Convert.ToInt32(System.Console.ReadLine());
if (num < 4 && num > -1)
{
inputNum = true;
//1.单阈值法
if (num == 1)
{
System.Console.Write("输入阈值（输入0则为默认值128）：");
try
{
argument = Convert.ToInt32(System.Console.ReadLine());
image = new SingleThresholdConverter(image, argument).Convert().Image;
}
catch (OverflowException)
{
System.Console.WriteLine("err:转化的不是一个int型数据");
}
catch (FormatException)
{
System.Console.WriteLine("err:格式错误");
}
catch (ArgumentNullException)
{
System.Console.WriteLine("err:null");
}
System.Console.WriteLine("完成单阈值法处理！");
}
//2.dither
else if (num == 2)
{
System.Console.Write("输入矩阵参数n（输入0则取默认值N=2）：");
try
{
argument = Convert.ToInt32(System.Console.ReadLine());
image = new DitherConverter(image, argument).Convert().Image;
}
catch (OverflowException)
{
System.Console.WriteLine("err:转化的不是一个int型数据");
}
catch (FormatException)
{
System.Console.WriteLine("err:格式错误");
}
catch (ArgumentNullException)
{
System.Console.WriteLine("err:null");
}
System.Console.WriteLine("完成dither矩阵处理！");
}
//3.ordered dither
else if (num == 3)
{
System.Console.Write("输入矩阵参数n（输入0则取默认值N=2）：");
argument = Convert.ToInt32(System.Console.ReadLine());
image = new OrderedDitherConverter(image, argument).Convert().Image;
System.Console.WriteLine("完成ordered dither矩阵处理！");
}
else
{
;
}
}
else
{
System.Console.Write("输入错误请重新输入:");
}
}
catch (OverflowException)
{
System.Console.WriteLine("err:转化的不是一个int型数据");
}
catch (FormatException)
{
System.Console.WriteLine("err:格式错误");
}
catch (ArgumentNullException)
{
System.Console.WriteLine("err:null");
}
} while (inputNum == false);
}
//True color or RGBA
else if (photoFormat == 2)
{
System.Console.Write("检测到图片为真彩图像：");
System.Console.WriteLine("可进行的操作：\n1.RGB->HSI\n2.RGB->YCbCr\n0.返回");
System.Console.Write("选择的操作是：");
bool inputNum = false;
do
{
try
{
int num = Convert.ToInt32(System.Console.ReadLine());
if (num < 3)
{
inputNum = true;
//1.
if (num == 1)
{
image = new HSIConverter(image).Convert().Image;
}
//2.
if (num == 2)
{
image = new YCbCrConverter(image).Convert().Image;
}
else
{
;
}
}
else
{
System.Console.Write("输入错误请重新输入:");
}
}
catch (OverflowException)
{
System.Console.WriteLine("err:转化的不是一个int型数据");
}
catch (FormatException)
{
System.Console.WriteLine("err:格式错误");
}
catch (ArgumentNullException)
{
System.Console.WriteLine("err:null");
}
} while (inputNum == false);
}
else
{
System.Console.Write("\n图片形式不支持模块转换哟~\n");
}
}
