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70 lines
4.5 KiB
70 lines
4.5 KiB
// Copyright (c) Six Labors and contributors.
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// Licensed under the Apache License, Version 2.0.
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using SixLabors.ImageSharp.PixelFormats;
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using SixLabors.ImageSharp.Processing.Processors.Binarization;
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using SixLabors.Primitives;
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namespace SixLabors.ImageSharp.Processing
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{
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/// <summary>
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/// Defines extension methods to apply binary thresholding on an <see cref="Image{TPixel}"/>
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/// using Mutate/Clone.
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/// </summary>
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public static class BinaryThresholdExtensions
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{
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/// <summary>
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/// Applies binarization to the image splitting the pixels at the given threshold.
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/// </summary>
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/// <typeparam name="TPixel">The pixel format.</typeparam>
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/// <param name="source">The image this method extends.</param>
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/// <param name="threshold">The threshold to apply binarization of the image. Must be between 0 and 1.</param>
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/// <returns>The <see cref="IImageProcessingContext{TPixel}"/> to allow chaining of operations.</returns>
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public static IImageProcessingContext<TPixel> BinaryThreshold<TPixel>(this IImageProcessingContext<TPixel> source, float threshold)
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where TPixel : struct, IPixel<TPixel>
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=> source.ApplyProcessor(new BinaryThresholdProcessor<TPixel>(threshold));
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/// <summary>
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/// Applies binarization to the image splitting the pixels at the given threshold.
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/// </summary>
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/// <typeparam name="TPixel">The pixel format.</typeparam>
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/// <param name="source">The image this method extends.</param>
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/// <param name="threshold">The threshold to apply binarization of the image. Must be between 0 and 1.</param>
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/// <param name="rectangle">
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/// The <see cref="Rectangle"/> structure that specifies the portion of the image object to alter.
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/// </param>
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/// <returns>The <see cref="IImageProcessingContext{TPixel}"/> to allow chaining of operations.</returns>
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public static IImageProcessingContext<TPixel> BinaryThreshold<TPixel>(this IImageProcessingContext<TPixel> source, float threshold, Rectangle rectangle)
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where TPixel : struct, IPixel<TPixel>
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=> source.ApplyProcessor(new BinaryThresholdProcessor<TPixel>(threshold), rectangle);
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/// <summary>
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/// Applies binarization to the image splitting the pixels at the given threshold.
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/// </summary>
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/// <typeparam name="TPixel">The pixel format.</typeparam>
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/// <param name="source">The image this method extends.</param>
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/// <param name="threshold">The threshold to apply binarization of the image. Must be between 0 and 1.</param>
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/// <param name="upperColor">The color to use for pixels that are above the threshold.</param>
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/// <param name="lowerColor">The color to use for pixels that are below the threshold</param>
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/// <returns>The <see cref="IImageProcessingContext{TPixel}"/> to allow chaining of operations.</returns>
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public static IImageProcessingContext<TPixel> BinaryThreshold<TPixel>(this IImageProcessingContext<TPixel> source, float threshold, TPixel upperColor, TPixel lowerColor)
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where TPixel : struct, IPixel<TPixel>
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=> source.ApplyProcessor(new BinaryThresholdProcessor<TPixel>(threshold, upperColor, lowerColor));
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/// <summary>
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/// Applies binarization to the image splitting the pixels at the given threshold.
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/// </summary>
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/// <typeparam name="TPixel">The pixel format.</typeparam>
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/// <param name="source">The image this method extends.</param>
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/// <param name="threshold">The threshold to apply binarization of the image. Must be between 0 and 1.</param>
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/// <param name="upperColor">The color to use for pixels that are above the threshold.</param>
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/// <param name="lowerColor">The color to use for pixels that are below the threshold</param>
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/// <param name="rectangle">
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/// The <see cref="Rectangle"/> structure that specifies the portion of the image object to alter.
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/// </param>
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/// <returns>The <see cref="IImageProcessingContext{TPixel}"/> to allow chaining of operations.</returns>
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public static IImageProcessingContext<TPixel> BinaryThreshold<TPixel>(this IImageProcessingContext<TPixel> source, float threshold, TPixel upperColor, TPixel lowerColor, Rectangle rectangle)
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where TPixel : struct, IPixel<TPixel>
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=> source.ApplyProcessor(new BinaryThresholdProcessor<TPixel>(threshold, upperColor, lowerColor), rectangle);
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}
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}
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