private ImageMagick.MagickImage originalMagickImage = null; // 图层图像修改前的状态
//点击状态下饱和度调节
private void MouseButtonDown(object sender, MouseButtonEventArgs args)
{
if (down == null)
{
return;
}
originalMagickImage = new ImageMagick.MagickImage(bitmap);
ImageMagick.Percentage brightness = new ImageMagick.Percentage(100); // 100%表示不改变该属性
ImageMagick.Percentage saturation = new ImageMagick.Percentage(50);
ImageMagick.Percentage hue = new ImageMagick.Percentage(100); // 滑动条范围值0%~200%
ImageMagick.MagickImage newImage = new ImageMagick.MagickImage(originalMagickImage); // 相当于深复制
newImage.Modulate(brightness, saturation, hue);
// 重新给Image控件赋值新图像
down = newImage.ToBitmapSource();
Source = down;
originalMagickImage.Dispose();
}
/// <summary>
/// 色相、饱和度、亮度、对比度
/// </summary>
/// <param name="sourceimg"></param>
/// <param name="threshold"></param>
/// <returns></returns>
public static Bitmap HSLC(Image sourceimg, int H, int S, int L, int C)
{
if (sourceimg != null)
{
ImageMagick.MagickImage originalMagickImage;
originalMagickImage = new ImageMagick.MagickImage((Bitmap)sourceimg);
// 只调整图像的Hue色相值
ImageMagick.Percentage brightness = new ImageMagick.Percentage(L); // 100%表示不改变该属性
ImageMagick.Percentage saturation = new ImageMagick.Percentage(S);
ImageMagick.Percentage hue = new ImageMagick.Percentage(H); // 滑动条范围值0%~200%
ImageMagick.MagickImage newImage = new ImageMagick.MagickImage(originalMagickImage); // 相当于深复制
newImage.Modulate(brightness, saturation, hue);
// 重新给Image控件赋值新图像
Bitmap bitmap1 = newImage.ToBitmap();
Bitmap bitmap = Contrast(bitmap1, C);
return(bitmap);
}
else
{
return((Bitmap)sourceimg);
}
}
public void loaded(object sender, EventArgs args)
{
if (originalMagickImage == null)
{
up = Source;
if (down == null)
{
bitmap = ImageSourceToBitmap(this.Source); // img是前台Image控件
new Task(new Action(() =>
{
originalMagickImage = new ImageMagick.MagickImage(bitmap);
ImageMagick.Percentage brightness = new ImageMagick.Percentage(100); // 100%表示不改变该属性
ImageMagick.Percentage saturation = new ImageMagick.Percentage(50);
ImageMagick.Percentage hue = new ImageMagick.Percentage(100); // 滑动条范围值0%~200%
ImageMagick.MagickImage newImage = new ImageMagick.MagickImage(originalMagickImage); // 相当于深复制
newImage.Modulate(brightness, saturation, hue);
// 重新给Image控件赋值新图像
down = newImage.ToBitmapSource();
})).Start();
}
}
}
private void ExecuteModulate(XmlElement element, MagickImage image)
{
Hashtable arguments = new Hashtable();
foreach (XmlAttribute attribute in element.Attributes)
{
arguments[attribute.Name] = Variables.GetValue<Percentage>(attribute);
}
if (OnlyContains(arguments, "brightness"))
image.Modulate((Percentage)arguments["brightness"]);
else if (OnlyContains(arguments, "brightness", "saturation"))
image.Modulate((Percentage)arguments["brightness"], (Percentage)arguments["saturation"]);
else if (OnlyContains(arguments, "brightness", "saturation", "hue"))
image.Modulate((Percentage)arguments["brightness"], (Percentage)arguments["saturation"], (Percentage)arguments["hue"]);
else
throw new ArgumentException("Invalid argument combination for 'modulate', allowed combinations are: [brightness] [brightness, saturation] [brightness, saturation, hue]");
}
public void Test_Modulate()
{
using (MagickImage image = new MagickImage(Files.TestPNG))
{
image.Modulate(new Percentage(70), new Percentage(30));
#if Q8
ColorAssert.AreEqual(new MagickColor("#743e3e"), image, 25, 70);
ColorAssert.AreEqual(new MagickColor("#0b0b0b"), image, 25, 40);
ColorAssert.AreEqual(new MagickColor("#1f3a1f"), image, 75, 70);
ColorAssert.AreEqual(new MagickColor("#5a5a5a"), image, 75, 40);
ColorAssert.AreEqual(new MagickColor("#3e3e74"), image, 125, 70);
ColorAssert.AreEqual(new MagickColor("#a8a8a8"), image, 125, 40);
#elif Q16 || Q16HDRI
ColorAssert.AreEqual(new MagickColor(OpenCLValue.Get("#72803da83da8", "#747a3eb83eb8")), image, 25, 70);
ColorAssert.AreEqual(new MagickColor(OpenCLValue.Get("#0b2d0b2d0b2d", "#0b5f0b5f0b5f")), image, 25, 40);
ColorAssert.AreEqual(new MagickColor(OpenCLValue.Get("#1ef3397a1ef3", "#1f7c3a781f7c")), image, 75, 70);
ColorAssert.AreEqual(new MagickColor(OpenCLValue.Get("#592d592d592d", "#5ab75ab75ab7")), image, 75, 40);
ColorAssert.AreEqual(new MagickColor(OpenCLValue.Get("#3da83da87280", "#3eb83eb8747a")), image, 125, 70);
ColorAssert.AreEqual(new MagickColor(OpenCLValue.Get("#a5aea5aea5ae", "#a88ba88ba88b")), image, 125, 40);
#else
#error Not implemented!
#endif
}
}