public void TestColorEqualization3()
{
var image = Util.ImageFile.LoadBmpImage("..\\..\\..\\TestImages\\直方图均衡测试图片color3.bmp");
image = new ColorEqualization(image).Equalization().Image;
Util.ImageFile.SaveBmpImage(image, "..\\..\\..\\TestImages\\直方图均衡测试图片color3_modified.bmp");
}
private static void ModuleTwo(BmpImage image)
{
/*
* 直方图均衡：
* 1.灰度图像:
* 进行直方图均衡，将均衡结果在存储至某一目录
* 2.真彩图像:
* 1.对其进行彩色变换(RGB->HSV)：
* 2.对亮度分量做直方图均衡
* 3.做彩色反变换得到均衡结果，存储至某一目录
*/
int photoFormat = CheckPhoto(image);
if (photoFormat == 1)
{
System.Console.Write("\n检测到图片为灰度图像");
System.Console.WriteLine("进行直方图均衡.....");
var ge = new GrayEqualization(image);
image = ge.Equalization().Image;
System.Console.WriteLine("完成直方图均衡！");
System.Console.WriteLine("----原始图像直方图----");
DrawHistogram(image.Data.Width * image.Data.Height, ge.hist);
var sv = new int[256];
for (int i = 0; i < image.Data.Width; i++)
{
for (int k = 0; k < image.Data.Height; k++)
{
sv[image.Data.Get8BitDataAt(i, k)]++;
}
}
System.Console.WriteLine("----均衡图像直方图----");
DrawHistogram(image.Data.Width * image.Data.Height, sv);
}
else if (photoFormat == 2)
{
System.Console.Write("\n检测到图片为彩色图像");
System.Console.WriteLine("进行直方图均衡(彩色变换为RGB->HSV).....");
var ge = new ColorEqualization(image);
image = ge.Equalization().Image;
System.Console.WriteLine("完成直方图均衡！");
System.Console.WriteLine("----原始图像直方图----");
DrawHistogram(image.Data.Width * image.Data.Height, ge.histV);
var sv = new int[256];
for (int i = 0; i < image.Data.Width; i++)
{
for (int k = 0; k < image.Data.Height; k++)
{
var rgb = image.Data.GetRGBDataAt(i, k);
sv[(rgb.R + rgb.G + rgb.B) / 3]++;
}
}
System.Console.WriteLine("----均衡图像直方图----");
DrawHistogram(image.Data.Width * image.Data.Height, sv);
}
else
{
System.Console.Write("\n图片形式不支持模块转换哟~\n");
}
}
public void TestHSVAndRGB()
{
//因为float精度问题不能直接比较，经过人工测试，没有问题；
var image = Util.ImageFile.LoadBmpImage("..\\..\\..\\TestImages\\直方图均衡测试图片color3.bmp");
ColorEqualization colorEqualization = new ColorEqualization(image);
RGB rgb1 = new RGB {
R = 240, G = 248, B = 255
};
HSV hsv1 = new HSV {
H = (int)(0.5778 * 360), S = 0.0588F, V = 1.0000F
};
//Assert.Equal(rgb1,colorEqualization.HSV2RGB(hsv1));
//Assert.Equal(hsv1, colorEqualization.RGB2HSV(rgb1));
RGB rgb2 = new RGB {
R = 139, G = 130, B = 119
};
HSV hsv2 = new HSV {
H = (int)(0.0965 * 360), S = 0.1367F, V = 0.5451F
};
//Assert.Equal(rgb2,colorEqualization.HSV2RGB(hsv2));
//Assert.Equal(hsv2, colorEqualization.RGB2HSV(rgb2));
RGB rgb3 = new RGB {
R = 255, G = 255, B = 255
};
HSV hsv3 = new HSV {
H = 0, S = 0.0F, V = 1.0000F
};
//Assert.Equal(rgb3, colorEqualization.HSV2RGB(hsv3));
//Assert.Equal(hsv3, colorEqualization.RGB2HSV(rgb3));
RGB rgb4 = new RGB {
R = 162, G = 205, B = 90
};
HSV hsv4 = new HSV {
H = (int)(0.2290 * 360), S = 0.5610F, V = 0.8039F
};
//Assert.Equal(rgb4,colorEqualization.HSV2RGB(hsv4));
//Assert.Equal(hsv4, colorEqualization.RGB2HSV(rgb4));
}
