public static Stream CreateBrokenImage(ProcessImageSettings s)
{
s.Fixup(s.Width > 0 ? s.Width : s.Height, s.Height > 0 ? s.Height : s.Width);
if (s.Width <= 0)
{
s.Height = s.Width = 100;
}
using (var bmp = new Bitmap(s.Width, s.Height, PixelFormat.Format24bppRgb))
using (var gfx = Graphics.FromImage(bmp))
using (var pen = new Pen(Brushes.White, 1.75f))
using (var ms = new MemoryStream(8192))
{
gfx.FillRectangle(Brushes.Gainsboro, Rectangle.FromLTRB(0, 0, s.Width, s.Height));
gfx.SmoothingMode = SmoothingMode.AntiAlias;
gfx.PixelOffsetMode = PixelOffsetMode.Half;
gfx.CompositingQuality = CompositingQuality.GammaCorrected;
float l = 0.5f, t = 0.5f, r = s.Width - 0.5f, b = s.Height - 0.5f;
gfx.DrawLines(pen, new PointF[] { new PointF(l, t), new PointF(r, b), new PointF(l, b), new PointF(r, t) });
gfx.DrawLines(pen, new PointF[] { new PointF(l, b), new PointF(l, t), new PointF(r, t), new PointF(r, b) });
bmp.Save(ms, ImageFormat.Png);
ms.Seek(0, SeekOrigin.Begin);
return(ms);
}
}
private static void createBrokenImage(Stream ostm, ProcessImageSettings s)
{
s = s.Clone();
if (s.Width == 0 && s.Height == 0)
{
s.Height = s.Width = 100;
}
s.Fixup(s.Width > 0 ? s.Width : s.Height, s.Height > 0 ? s.Height : s.Width);
using var bmp = new Bitmap(s.Width, s.Height, GdiPixelFormat.Format24bppRgb);
using var gfx = Graphics.FromImage(bmp);
using var pen = new Pen(Brushes.White, 1.75f);
gfx.FillRectangle(Brushes.Gainsboro, new Rectangle(0, 0, s.Width, s.Height));
gfx.SmoothingMode = SmoothingMode.AntiAlias;
gfx.PixelOffsetMode = PixelOffsetMode.Half;
gfx.CompositingQuality = CompositingQuality.GammaCorrected;
float l = 0.5f, t = 0.5f, r = s.Width - 0.5f, b = s.Height - 0.5f;
gfx.DrawLines(pen, new[] { new PointF(l, t), new PointF(r, b), new PointF(l, b), new PointF(r, t) });
gfx.DrawLines(pen, new[] { new PointF(l, b), new PointF(l, t), new PointF(r, t), new PointF(r, b) });
bmp.Save(ostm, ImageFormat.Png);
}
public static void ProcessImage(Stream istm, Stream ostm, ProcessImageSettings s)
{
if (istm == null)
{
throw new ArgumentNullException(nameof(istm));
}
if (ostm == null)
{
throw new ArgumentNullException(nameof(ostm));
}
if (!istm.CanSeek || !istm.CanRead)
{
throw new ArgumentException("Input Stream must allow Seek and Read", nameof(istm));
}
if (!ostm.CanSeek || !ostm.CanWrite)
{
throw new ArgumentException("Output Stream must allow Seek and Write", nameof(ostm));
}
if (istm.Length <= 0 || istm.Position >= istm.Length)
{
throw new ArgumentException("Input Stream is empty or positioned at its end", nameof(istm));
}
using (var ctx = new WicProcessingContext(s))
using (var dec = new WicDecoder(istm, ctx))
processImage(dec, ctx, ostm);
}
/// <inheritdoc cref="BuildPipeline(string, ProcessImageSettings)" />
/// <param name="imgContainer">A custom <see cref="IImageContainer"/> to use as input.</param>
public static ProcessingPipeline BuildPipeline(IImageContainer imgContainer, ProcessImageSettings settings)
{
if (imgContainer is null)
{
throw new ArgumentNullException(nameof(imgContainer));
}
if (settings is null)
throw new ArgumentNullException(nameof(settings)); }
public static void ProcessImage(byte[] imgBuffer, Stream ostm, ProcessImageSettings s)
{
Contract.Requires <ArgumentNullException>(imgBuffer != null, nameof(imgBuffer));
Contract.Requires <ArgumentNullException>(ostm != null, nameof(ostm));
Contract.Requires <ArgumentException>(ostm.CanSeek && ostm.CanWrite, "Output Stream must allow Seek and Write");
using (var ctx = new WicProcessingContext(s))
using (var dec = new WicDecoder(imgBuffer, ctx))
processImage(dec, ctx, ostm);
}
/// <summary>Constructs a new processing pipeline from which pixels can be retrieved.</summary>
/// <param name="imgStream">A stream containing a supported input image container.</param>
/// <param name="settings">The settings for this processing operation.</param>
/// <returns>A <see cref="ProcessingPipeline" /> containing the <see cref="IPixelSource" />, settings used, and basic instrumentation for the pipeline.</returns>
public static ProcessingPipeline BuildPipeline(Stream imgStream, ProcessImageSettings settings)
{
checkInStream(imgStream);
var ctx = new WicProcessingContext(settings);
var dec = new WicDecoder(imgStream, ctx);
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
/// <inheritdoc cref="BuildPipeline(string, ProcessImageSettings)" />
/// <param name="imgStream">A stream containing a supported input image container. The stream must allow Seek and Read.</param>
public static ProcessingPipeline BuildPipeline(Stream imgStream, ProcessImageSettings settings)
{
checkInStream(imgStream);
var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgStream, ctx.WicContext);
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
public static void ProcessImage(Stream istm, Stream ostm, ProcessImageSettings s)
{
Contract.Requires <ArgumentNullException>(istm != null, nameof(istm));
Contract.Requires <ArgumentNullException>(ostm != null, nameof(ostm));
Contract.Requires <ArgumentException>(istm.CanSeek && istm.CanRead, "Input Stream must allow Seek and Read");
Contract.Requires <ArgumentException>(ostm.CanSeek && ostm.CanWrite, "Output Stream must allow Seek and Write");
Contract.Assume(istm.Position < istm.Length, "Input Stream Position is at the end. Did you forget to Seek?");
using (var ctx = new WicProcessingContext(s))
using (var dec = new WicDecoder(istm, ctx))
processImage(dec, ctx, ostm);
}
public static ProcessingPipeline BuildPipeline(string imgPath, ProcessImageSettings settings)
{
if (imgPath == null)
{
throw new ArgumentNullException(nameof(imgPath));
}
var ctx = new WicProcessingContext(settings);
var dec = new WicDecoder(imgPath, ctx);
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
/// <summary>Constructs a new processing pipeline from which pixels can be retrieved.</summary>
/// <param name="imgSource">A custom pixel source to use as input.</param>
/// <param name="settings">The settings for this processing operation.</param>
/// <returns>A <see cref="ProcessingPipeline" /> containing the <see cref="IPixelSource" />, settings used, and basic instrumentation for the pipeline.</returns>
public static ProcessingPipeline BuildPipeline(IPixelSource imgSource, ProcessImageSettings settings)
{
if (imgSource is null)
{
throw new ArgumentNullException(nameof(imgSource));
}
var ctx = new WicProcessingContext(settings);
var dec = new WicDecoder(imgSource, ctx);
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
/// <summary>Constructs a new processing pipeline from which pixels can be retrieved.</summary>
/// <param name="imgPath">The path to a file containing the input image.</param>
/// <param name="settings">The settings for this processing operation.</param>
/// <returns>A <see cref="ProcessingPipeline" /> containing the <see cref="IPixelSource" />, settings used, and basic instrumentation for the pipeline.</returns>
public static ProcessingPipeline BuildPipeline(string imgPath, ProcessImageSettings settings)
{
if (imgPath is null)
{
throw new ArgumentNullException(nameof(imgPath));
}
var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgPath, ctx.WicContext);
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
/// <inheritdoc cref="BuildPipeline(string, ProcessImageSettings)" />
/// <param name="imgStream">A stream containing a supported input image container. The stream must allow Seek and Read.</param>
public static ProcessingPipeline BuildPipeline(Stream imgStream, ProcessImageSettings settings)
{
if (settings is null)
{
throw new ArgumentNullException(nameof(settings));
}
checkInStream(imgStream);
var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgStream, ctx.WicContext);
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
/// <inheritdoc cref="BuildPipeline(string, ProcessImageSettings)" />
/// <param name="imgContainer">A custom <see cref="IImageContainer"/> to use as input.</param>
public static ProcessingPipeline BuildPipeline(IImageContainer imgContainer, ProcessImageSettings settings)
{
if (imgContainer is null)
{
throw new ArgumentNullException(nameof(imgContainer));
}
var ctx = new PipelineContext(settings)
{
ImageContainer = imgContainer
};
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
/// <inheritdoc cref="BuildPipeline(string, ProcessImageSettings)" />
/// <param name="imgSource">A custom pixel source to use as input.</param>
public static ProcessingPipeline BuildPipeline(IPixelSource imgSource, ProcessImageSettings settings)
{
if (imgSource is null)
{
throw new ArgumentNullException(nameof(imgSource));
}
var ctx = new PipelineContext(settings)
{
ImageContainer = new PixelSourceContainer(imgSource),
Source = imgSource.AsPixelSource()
};
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
public static void ProcessImage(byte[] imgBuffer, Stream ostm, ProcessImageSettings s)
{
if (imgBuffer == null)
{
throw new ArgumentNullException(nameof(imgBuffer));
}
if (ostm == null)
{
throw new ArgumentNullException(nameof(ostm));
}
if (!ostm.CanSeek || !ostm.CanWrite)
{
throw new ArgumentException("Output Stream must allow Seek and Write", nameof(ostm));
}
using (var ctx = new WicProcessingContext(s))
using (var dec = new WicDecoder(imgBuffer, ctx))
processImage(dec, ctx, ostm);
}
/// <summary>Constructs a new processing pipeline from which pixels can be retrieved.</summary>
/// <param name="imgPath">The path to a file containing the input image.</param>
/// <param name="settings">The settings for this processing operation.</param>
/// <returns>A <see cref="ProcessingPipeline" /> containing the <see cref="IPixelSource" />, settings used, and basic instrumentation for the pipeline.</returns>
public static ProcessingPipeline BuildPipeline(string imgPath, ProcessImageSettings settings)
{
if (imgPath is null)
{
throw new ArgumentNullException(nameof(imgPath));
}
if (settings is null)
{
throw new ArgumentNullException(nameof(settings));
}
var ctx = new PipelineContext(settings);
var fs = ctx.AddDispose(File.OpenRead(imgPath));
ctx.AddDispose(new StreamBufferInjector(fs));
ctx.ImageContainer = ctx.AddDispose(WicImageDecoder.Load(fs));
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
internal static Image HybridScale(this Image img, ProcessImageSettings s, InterpolationMode mode)
{
if (s.HybridScaleRatio == 1 || (mode != InterpolationMode.HighQualityBicubic && mode != InterpolationMode.HighQualityBilinear))
{
return(img);
}
int intw = (int)Math.Ceiling((double)img.Width / s.HybridScaleRatio);
int inth = (int)Math.Ceiling((double)img.Height / s.HybridScaleRatio);
var bmp = new Bitmap(intw, inth);
using (var gfx = Graphics.FromImage(bmp))
{
gfx.PixelOffsetMode = PixelOffsetMode.Half;
gfx.CompositingMode = CompositingMode.SourceCopy;
gfx.DrawImage(img, new Rectangle(0, 0, intw, inth), s.Crop.X, s.Crop.Y, s.Crop.Width, s.Crop.Height, GraphicsUnit.Pixel);
}
img.Dispose();
s.Crop = new Rectangle(0, 0, intw, inth);
return(bmp);
}
unsafe public static ProcessImageResult ProcessImage(ReadOnlySpan <byte> imgBuffer, Stream outStream, ProcessImageSettings settings)
{
fixed(byte *pbBuffer = imgBuffer)
using (var ms = new UnmanagedMemoryStream(pbBuffer, imgBuffer.Length, imgBuffer.Length, FileAccess.Read))
return(ProcessImage(ms, outStream, settings));
}
public static ProcessImageResult ProcessImage(string imgPath, Stream outStream, ProcessImageSettings settings)
{
using var fs = new FileStream(imgPath, FileMode.Open, FileAccess.Read, FileShare.Read);
return(ProcessImage(fs, outStream, settings));
}
private static ProcessImageResult processImage(Stream istm, Stream ostm, ProcessImageSettings s)
{
using var img = Image.FromStream(istm, s.ColorProfileMode != ColorProfileMode.Ignore, false);
if (s.FrameIndex > 0)
{
var fd = img.RawFormat.Guid == ImageFormat.Gif.Guid ? FrameDimension.Time : FrameDimension.Page;
if (img.GetFrameCount(fd) > s.FrameIndex)
{
img.SelectActiveFrame(fd, s.FrameIndex);
}
else
{
throw new ArgumentOutOfRangeException(nameof(s), "Invalid Frame Index");
}
}
if (s.OrientationMode == OrientationMode.Normalize)
{
img.ExifRotate();
}
s = s.Clone();
s.Fixup(img.Width, img.Height);
var usedSettings = s.Clone();
bool alpha = ((ImageFlags)img.Flags).HasFlag(ImageFlags.HasAlpha);
var pixelFormat = alpha && s.MatteColor.IsTransparent() ? GdiPixelFormat.Format32bppArgb : GdiPixelFormat.Format24bppRgb;
var mode = s.Interpolation.WeightingFunction.Support <0.1 ? InterpolationMode.NearestNeighbor :
s.Interpolation.WeightingFunction.Support <1.0 ? s.ScaleRatio> 1.0 ? InterpolationMode.Bilinear : InterpolationMode.NearestNeighbor :
s.Interpolation.WeightingFunction.Support> 1.0 ? s.ScaleRatio > 1.0 || s.Interpolation.Blur > 1.0 ? InterpolationMode.HighQualityBicubic : InterpolationMode.Bicubic :
s.ScaleRatio > 1.0 ? InterpolationMode.HighQualityBilinear : InterpolationMode.Bilinear;
using var src = img.HybridScale(s, mode);
using var iat = new ImageAttributes();
using var bmp = new Bitmap(s.Width, s.Height, pixelFormat);
using var gfx = Graphics.FromImage(bmp);
iat.SetWrapMode(WrapMode.TileFlipXY);
gfx.PixelOffsetMode = PixelOffsetMode.Half;
gfx.CompositingMode = CompositingMode.SourceCopy;
gfx.InterpolationMode = mode;
if ((alpha || s.InnerSize != s.OuterSize) && !s.MatteColor.IsEmpty)
{
gfx.Clear(s.MatteColor);
gfx.CompositingMode = CompositingMode.SourceOver;
gfx.CompositingQuality = CompositingQuality.GammaCorrected;
}
gfx.DrawImage(src, s.InnerRect, s.Crop.X, s.Crop.Y, s.Crop.Width, s.Crop.Height, GraphicsUnit.Pixel, iat);
switch (s.SaveFormat)
{
case FileFormat.Bmp:
bmp.Save(ostm, ImageFormat.Bmp);
break;
case FileFormat.Tiff:
using (var encoderParams = new EncoderParameters(1))
using (var param = new EncoderParameter(Encoder.Compression, (long)EncoderValue.CompressionNone))
{
encoderParams.Param[0] = param;
bmp.Save(ostm, tiffCodec, encoderParams);
}
break;
case FileFormat.Jpeg:
using (var encoderParams = new EncoderParameters(1))
using (var param = new EncoderParameter(Encoder.Quality, s.JpegQuality))
{
encoderParams.Param[0] = param;
bmp.Save(ostm, jpegCodec, encoderParams);
}
break;
default:
if (s.IndexedColor)
{
bmp.Save(ostm, ImageFormat.Gif);
}
else
{
bmp.Save(ostm, ImageFormat.Png);
}
break;
}
return(new ProcessImageResult(usedSettings, Enumerable.Empty <PixelSourceStats>()));
}
/// <summary>Constructs a new processing pipeline from which pixels can be retrieved.</summary>
/// <param name="imgBuffer">A buffer containing a supported input image container.</param>
/// <param name="settings">The settings for this processing operation.</param>
/// <returns>A <see cref="ProcessingPipeline" /> containing the <see cref="IPixelSource" />, settings used, and basic instrumentation for the pipeline.</returns>
public static ProcessingPipeline BuildPipeline(ReadOnlySpan <byte> imgBuffer, ProcessImageSettings settings)
{
if (imgBuffer == default)
{
throw new ArgumentNullException(nameof(imgBuffer));
}
var ctx = new WicProcessingContext(settings);
var dec = new WicDecoder(imgBuffer, ctx);
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
public static ProcessImageResult ProcessImage(ReadOnlySpan <byte> imgBuffer, Stream outStream, ProcessImageSettings settings)
{
using (var ctx = new WicProcessingContext(settings))
return(processImage(new WicDecoder(imgBuffer, ctx), ctx, outStream));
}
public static ProcessImageResult ProcessImage(Stream imgStream, Stream outStream, ProcessImageSettings settings)
{
using (var ctx = new WicProcessingContext(settings))
return(processImage(new WicDecoder(imgStream, ctx), ctx, outStream));
}
#pragma warning disable 1573 // not all params have docs
/// <inheritdoc cref="ProcessImage(string, Stream, ProcessImageSettings)" />
/// <param name="imgBuffer">A buffer containing a supported input image container.</param>
public static ProcessImageResult ProcessImage(ReadOnlySpan <byte> imgBuffer, Stream outStream, ProcessImageSettings settings)
{
if (imgBuffer == default)
{
throw new ArgumentNullException(nameof(imgBuffer));
}
if (settings is null)
{
throw new ArgumentNullException(nameof(settings));
}
checkOutStream(outStream);
using var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgBuffer, ctx.WicContext);
buildPipeline(ctx);
return(WriteOutput(ctx, outStream));
}
public static ProcessImageResult ProcessImage(Stream imgStream, Stream outStream, ProcessImageSettings settings) => processImage(imgStream, outStream, settings);
/// <summary>All-in-one processing of an image according to the specified <paramref name="settings" />.</summary>
/// <param name="imgStream">A stream containing a supported input image container.</param>
/// <param name="outStream">The stream to which the output image will be written.</param>
/// <param name="settings">The settings for this processing operation.</param>
/// <returns>A <see cref="ProcessImageResult" /> containing the settings used and basic instrumentation for the pipeline.</returns>
public static ProcessImageResult ProcessImage(Stream imgStream, Stream outStream, ProcessImageSettings settings)
{
checkInStream(imgStream);
checkOutStream(outStream);
using (var ctx = new WicProcessingContext(settings))
{
var dec = new WicDecoder(imgStream, ctx);
buildPipeline(ctx);
return(executePipeline(ctx, outStream));
}
}
/// <summary>All-in-one processing of an image according to the specified <paramref name="settings" />.</summary>
/// <param name="imgBuffer">A buffer containing a supported input image container.</param>
/// <param name="outStream">The stream to which the output image will be written.</param>
/// <param name="settings">The settings for this processing operation.</param>
/// <returns>A <see cref="ProcessImageResult" /> containing the settings used and basic instrumentation for the pipeline.</returns>
public static ProcessImageResult ProcessImage(ReadOnlySpan <byte> imgBuffer, Stream outStream, ProcessImageSettings settings)
{
if (imgBuffer == default)
{
throw new ArgumentNullException(nameof(imgBuffer));
}
checkOutStream(outStream);
using (var ctx = new WicProcessingContext(settings))
{
var dec = new WicDecoder(imgBuffer, ctx);
buildPipeline(ctx);
return(executePipeline(ctx, outStream));
}
}
/// <summary>All-in-one processing of an image according to the specified <paramref name="settings" />.</summary>
/// <param name="imgPath">The path to a file containing the input image.</param>
/// <param name="outStream">The stream to which the output image will be written.</param>
/// <param name="settings">The settings for this processing operation.</param>
/// <returns>A <see cref="ProcessImageResult" /> containing the settings used and basic instrumentation for the pipeline.</returns>
public static ProcessImageResult ProcessImage(string imgPath, Stream outStream, ProcessImageSettings settings)
{
if (imgPath is null)
{
throw new ArgumentNullException(nameof(imgPath));
}
checkOutStream(outStream);
using (var ctx = new WicProcessingContext(settings))
{
var dec = new WicDecoder(imgPath, ctx);
buildPipeline(ctx);
return(executePipeline(ctx, outStream));
}
}
public static void CreateBrokenImage(Stream outStream, ProcessImageSettings settings) => createBrokenImage(outStream, settings);
/// <summary>All-in-one processing of an image according to the specified <paramref name="settings" />.</summary>
/// <param name="imgPath">The path to a file containing the input image.</param>
/// <param name="outStream">The stream to which the output image will be written. The stream must allow Seek and Write.</param>
/// <param name="settings">The settings for this processing operation.</param>
/// <returns>A <see cref="ProcessImageResult" /> containing the settings used and basic instrumentation for the pipeline.</returns>
public static ProcessImageResult ProcessImage(string imgPath, Stream outStream, ProcessImageSettings settings)
{
if (imgPath is null)
{
throw new ArgumentNullException(nameof(imgPath));
}
if (settings is null)
{
throw new ArgumentNullException(nameof(settings));
}
checkOutStream(outStream);
using var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgPath, ctx.WicContext);
buildPipeline(ctx);
return(WriteOutput(ctx, outStream));
}