public IImageProcessor <TPixel> CreatePixelSpecificProcessor <TPixel>(Configuration configuration, Image <TPixel> source, Rectangle sourceRectangle) where TPixel : unmanaged, IPixel <TPixel>
{
if (source is Image <Rgb24> rgbSource)
{
var processor = new RgbAnalysisProcessor(configuration, _settings, rgbSource);
CropAnalysis = processor.GetCropAnalysis();
if (_settings.AnalyzeWeights)
{
WeightAnalysis = processor.GetWeightAnalysis(CropAnalysis);
}
return((IImageProcessor <TPixel>)processor);
}
else if (source is Image <Rgba32> rgbaSource)
{
var processor = new RgbaAnalysisProcessor(configuration, _settings, rgbaSource);
CropAnalysis = processor.GetCropAnalysis();
return((IImageProcessor <TPixel>)processor);
}
throw new NotSupportedException("Unsupported pixel type");
}
public AutoCropState(Bitmap bitmap, ICropAnalysis cropAnalysis = null, IWeightAnalysis weightAnalysis = null)
{
var originalDimensions = new Rectangle(0, 0, bitmap.Width, bitmap.Height);
BytesPerPixel = Image.GetPixelFormatSize(bitmap.PixelFormat) / 8;
BorderColor = cropAnalysis?.Background ?? Color.White;
Weight = weightAnalysis?.Weight ?? new PointF(0, 0);
Bounds = cropAnalysis?.BoundingBox ?? originalDimensions;
OriginalDimensions = originalDimensions;
}
public WeightAnalyzer(Bitmap bitmap, Color background)
{
_mapResolution = 5;
var weightMap = GetWeightMap(bitmap);
var bounds = new Rectangle(0, 0, _mapResolution, _mapResolution);
var bytesPerPixel = Image.GetPixelFormatSize(bitmap.PixelFormat) / 8;
var data = (BitmapData)null;
var vector = new PointF(0, 0);
try
{
data = weightMap.LockBits(bounds, ImageLockMode.ReadOnly, bitmap.PixelFormat);
if (bytesPerPixel == 3)
{
vector = GetVectorRgb(data, background);
}
else
{
vector = GetVectorRgba(data, background);
}
}
finally
{
if (weightMap != null)
{
if (data != null)
{
weightMap.UnlockBits(data);
}
weightMap.Dispose();
}
}
_analysis = new WeightAnalysis
{
Weight = vector
};
}
public override ICloningImageProcessor <TPixel> CreatePixelSpecificCloningProcessor <TPixel>(Configuration configuration, Image <TPixel> source, Rectangle sourceRectangle)
{
if (source is Image <Rgb24> rgbSource)
{
var processor = new RgbAutoCropProcessor(configuration, _settings, rgbSource);
CropAnalysis = processor.CropAnalysis;
WeightAnalysis = processor.WeightAnalysis;
return((ICloningImageProcessor <TPixel>)processor);
}
else if (source is Image <Rgba32> rgbaSource)
{
var processor = new RgbaAutoCropProcessor(configuration, _settings, rgbaSource);
CropAnalysis = processor.CropAnalysis;
WeightAnalysis = processor.WeightAnalysis;
return((ICloningImageProcessor <TPixel>)processor);
}
throw new NotSupportedException("Unsupported pixel type");
}
public static void AnalyzeCrop(this IImageProcessingContext context, IAutoCropSettings settings, out ICropAnalysis cropAnalysis, out IWeightAnalysis weightAnalysis)
{
var processor = new AnalysisProcessor(settings);
context.ApplyProcessor(processor);
cropAnalysis = processor.CropAnalysis;
weightAnalysis = processor.WeightAnalysis;
}
public static void AutoCropKnown(this IImageProcessingContext context, IAutoCropSettings settings, ICropAnalysis cropAnalysis, IWeightAnalysis weightAnalysis = null)
{
var processor = new PreCalculatedAutoCropProcessor(settings, cropAnalysis, weightAnalysis);
context.ApplyProcessor(processor);
}
public static bool TryAnalyzeCrop(this IImageProcessingContext context, IAutoCropSettings settings, out ICropAnalysis cropAnalysis, out IWeightAnalysis weightAnalysis)
{
try
{
AnalyzeCrop(context, settings, out cropAnalysis, out weightAnalysis);
return(true);
}
catch (Exception)
{
cropAnalysis = null;
weightAnalysis = null;
return(false);
}
}
public PreCalculatedAutoCropProcessor(IAutoCropSettings settings, ICropAnalysis cropAnalysis, IWeightAnalysis weightAnalysis = null) : base(settings)
{
_settings = settings;
CropAnalysis = cropAnalysis;
WeightAnalysis = weightAnalysis;
}