public TiffPaletteWriter(
ImageFrame <TPixel> image,
IQuantizer quantizer,
MemoryAllocator memoryAllocator,
Configuration configuration,
TiffEncoderEntriesCollector entriesCollector,
int bitsPerPixel)
: base(image, memoryAllocator, configuration, entriesCollector)
{
DebugGuard.NotNull(quantizer, nameof(quantizer));
DebugGuard.NotNull(configuration, nameof(configuration));
DebugGuard.NotNull(entriesCollector, nameof(entriesCollector));
DebugGuard.MustBeBetweenOrEqualTo(bitsPerPixel, 4, 8, nameof(bitsPerPixel));
this.BitsPerPixel = bitsPerPixel;
this.maxColors = this.BitsPerPixel == 4 ? 16 : 256;
this.colorPaletteSize = this.maxColors * 3;
this.colorPaletteBytes = this.colorPaletteSize * 2;
using IQuantizer <TPixel> frameQuantizer = quantizer.CreatePixelSpecificQuantizer <TPixel>(this.Configuration, new QuantizerOptions()
{
MaxColors = this.maxColors
});
this.quantizedImage = frameQuantizer.BuildPaletteAndQuantizeFrame(image, image.Bounds());
this.AddColorMapTag();
}
public static TiffBaseColorWriter <TPixel> Create <TPixel>(
TiffPhotometricInterpretation?photometricInterpretation,
ImageFrame <TPixel> image,
IQuantizer quantizer,
MemoryAllocator memoryAllocator,
Configuration configuration,
TiffEncoderEntriesCollector entriesCollector,
int bitsPerPixel)
where TPixel : unmanaged, IPixel <TPixel>
{
switch (photometricInterpretation)
{
case TiffPhotometricInterpretation.PaletteColor:
return(new TiffPaletteWriter <TPixel>(image, quantizer, memoryAllocator, configuration, entriesCollector, bitsPerPixel));
case TiffPhotometricInterpretation.BlackIsZero:
case TiffPhotometricInterpretation.WhiteIsZero:
if (bitsPerPixel == 1)
{
return(new TiffBiColorWriter <TPixel>(image, memoryAllocator, configuration, entriesCollector));
}
return(new TiffGrayWriter <TPixel>(image, memoryAllocator, configuration, entriesCollector));
default:
return(new TiffRgbWriter <TPixel>(image, memoryAllocator, configuration, entriesCollector));
}
}
protected TiffCompositeColorWriter(ImageFrame <TPixel> image, MemoryAllocator memoryAllocator, Configuration configuration, TiffEncoderEntriesCollector entriesCollector)
: base(image, memoryAllocator, configuration, entriesCollector)
{
}
public TiffBiColorWriter(ImageFrame <TPixel> image, MemoryAllocator memoryAllocator, Configuration configuration, TiffEncoderEntriesCollector entriesCollector)
: base(image, memoryAllocator, configuration, entriesCollector)
{
// Convert image to black and white.
this.imageBlackWhite = new Image <TPixel>(configuration, new ImageMetadata(), new[] { image.Clone() });
this.imageBlackWhite.Mutate(img => img.BinaryDither(KnownDitherings.FloydSteinberg));
}
public TiffRgbWriter(ImageFrame <TPixel> image, MemoryAllocator memoryAllocator, Configuration configuration, TiffEncoderEntriesCollector entriesCollector)
: base(image, memoryAllocator, configuration, entriesCollector)
{
}
protected TiffBaseColorWriter(ImageFrame <TPixel> image, MemoryAllocator memoryAllocator, Configuration configuration, TiffEncoderEntriesCollector entriesCollector)
{
this.Image = image;
this.MemoryAllocator = memoryAllocator;
this.Configuration = configuration;
this.EntriesCollector = entriesCollector;
}
