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规范类名及命名空间名称

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李伟
2026-04-13 14:35:37 +08:00
parent c430ec229b
commit ace1c70ddf
217 changed files with 1271 additions and 1384 deletions
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XP.ImageProcessing.Processors/其他/FilmEffectProcessor.cs
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// ============================================================================
// Copyright © 2026 Hexagon Technology Center GmbH. All Rights Reserved.
// 文件� FilmEffectProcessor.cs
// �述: 电�胶片效果算�，模拟传统X射线胶片的显示效�
// 功能:
// - 窗宽窗�（Window/Level）调�
// - 胶片�转（正�负片�
// - 多�胶片特性曲线（线性�S曲线�对数�指数）
// - 边缘增强（模拟胶片�化效果）
// - 使用查找表（LUT）加速处�
// 算法: 窗宽窗�映射 + 特性曲线��
// 作� �伟 wei.lw.li@hexagon.com
// ============================================================================
using Emgu.CV;
using Emgu.CV.Structure;
using Serilog;
using XP.ImageProcessing.Core;
namespace XP.ImageProcessing.Processors;
/// <summary>
/// 电�胶片效果算�
/// </summary>
public class FilmEffectProcessor : ImageProcessorBase
{
private static readonly ILogger _logger = Log.ForContext<FilmEffectProcessor>();
private byte[] _lut = new byte[256];
public FilmEffectProcessor()
{
Name = LocalizationHelper.GetString("FilmEffectProcessor_Name");
Description = LocalizationHelper.GetString("FilmEffectProcessor_Description");
}
protected override void InitializeParameters()
{
Parameters.Add("WindowCenter", new ProcessorParameter(
"WindowCenter",
LocalizationHelper.GetString("FilmEffectProcessor_WindowCenter"),
typeof(int),
128,
0,
255,
LocalizationHelper.GetString("FilmEffectProcessor_WindowCenter_Desc")));
Parameters.Add("WindowWidth", new ProcessorParameter(
"WindowWidth",
LocalizationHelper.GetString("FilmEffectProcessor_WindowWidth"),
typeof(int),
255,
1,
255,
LocalizationHelper.GetString("FilmEffectProcessor_WindowWidth_Desc")));
Parameters.Add("Invert", new ProcessorParameter(
"Invert",
LocalizationHelper.GetString("FilmEffectProcessor_Invert"),
typeof(bool),
false,
null,
null,
LocalizationHelper.GetString("FilmEffectProcessor_Invert_Desc")));
Parameters.Add("Curve", new ProcessorParameter(
"Curve",
LocalizationHelper.GetString("FilmEffectProcessor_Curve"),
typeof(string),
"Linear",
null,
null,
LocalizationHelper.GetString("FilmEffectProcessor_Curve_Desc"),
new string[] { "Linear", "Sigmoid", "Logarithmic", "Exponential" }));
Parameters.Add("CurveStrength", new ProcessorParameter(
"CurveStrength",
LocalizationHelper.GetString("FilmEffectProcessor_CurveStrength"),
typeof(double),
1.0,
0.1,
5.0,
LocalizationHelper.GetString("FilmEffectProcessor_CurveStrength_Desc")));
Parameters.Add("EdgeEnhance", new ProcessorParameter(
"EdgeEnhance",
LocalizationHelper.GetString("FilmEffectProcessor_EdgeEnhance"),
typeof(double),
0.0,
0.0,
3.0,
LocalizationHelper.GetString("FilmEffectProcessor_EdgeEnhance_Desc")));
_logger.Debug("InitializeParameters");
}
public override Image<Gray, byte> Process(Image<Gray, byte> inputImage)
{
int windowCenter = GetParameter<int>("WindowCenter");
int windowWidth = GetParameter<int>("WindowWidth");
bool invert = GetParameter<bool>("Invert");
string curve = GetParameter<string>("Curve");
double curveStrength = GetParameter<double>("CurveStrength");
double edgeEnhance = GetParameter<double>("EdgeEnhance");
// 构建查找�
BuildLUT(windowCenter, windowWidth, invert, curve, curveStrength);
// 应用 LUT
var result = inputImage.Clone();
int width = result.Width;
int height = result.Height;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
result.Data[y, x, 0] = _lut[result.Data[y, x, 0]];
}
}
// 边缘增强（模拟胶片�化）
if (edgeEnhance > 0.01)
{
using var blurred = inputImage.SmoothGaussian(3);
using var detail = new Image<Gray, float>(width, height);
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
float diff = inputImage.Data[y, x, 0] - blurred.Data[y, x, 0];
float enhanced = result.Data[y, x, 0] + (float)(diff * edgeEnhance);
result.Data[y, x, 0] = (byte)Math.Clamp((int)enhanced, 0, 255);
}
}
}
_logger.Debug("Process: WC={WC}, WW={WW}, Invert={Inv}, Curve={Curve}, Strength={Str}, Edge={Edge}",
windowCenter, windowWidth, invert, curve, curveStrength, edgeEnhance);
return result;
}
private void BuildLUT(int wc, int ww, bool invert, string curve, double strength)
{
double halfW = ww / 2.0;
double low = wc - halfW;
double high = wc + halfW;
for (int i = 0; i < 256; i++)
{
// 窗宽窗�映射�[0, 1]
double normalized;
if (ww <= 1)
normalized = i >= wc ? 1.0 : 0.0;
else
normalized = Math.Clamp((i - low) / (high - low), 0.0, 1.0);
// 应用特性曲�
double mapped = curve switch
{
"Sigmoid" => ApplySigmoid(normalized, strength),
"Logarithmic" => ApplyLogarithmic(normalized, strength),
"Exponential" => ApplyExponential(normalized, strength),
_ => normalized // Linear
};
// �转（负片效果）
if (invert)
mapped = 1.0 - mapped;
_lut[i] = (byte)Math.Clamp((int)(mapped * 255.0), 0, 255);
}
}
/// <summary>S曲线（Sigmoid）：增强中间调对比度</summary>
private static double ApplySigmoid(double x, double strength)
{
double k = strength * 10.0;
return 1.0 / (1.0 + Math.Exp(-k * (x - 0.5)));
}
/// <summary>对数曲线：�亮暗部，压缩亮部</summary>
private static double ApplyLogarithmic(double x, double strength)
{
double c = strength;
return Math.Log(1.0 + c * x) / Math.Log(1.0 + c);
}
/// <summary>指数曲线：压缩暗部，增强亮部</summary>
private static double ApplyExponential(double x, double strength)
{
double c = strength;
return (Math.Exp(c * x) - 1.0) / (Math.Exp(c) - 1.0);
}
}