Apply() public method

public Apply ( float r, float g, float b ) : ColorBgra
r float
g float
b float
return ColorBgra
UnaryPixelOps.Level Class Documentation
Esempio n. 1
0
        public override void RenderEffect(ImageSurface src, ImageSurface dest, Gdk.Rectangle[] rois)
        {
            HistogramRgb histogram = new HistogramRgb ();
            histogram.UpdateHistogram (src, new Gdk.Rectangle (0, 0, src.Width, src.Height));

            op = histogram.MakeLevelsAuto ();

            if (op.isValid)
                op.Apply (dest, src, rois);
        }
Esempio n. 2
0
        public unsafe void Sepia()
        {
            Desaturate ();

            UnaryPixelOp op = new UnaryPixelOps.Level(
                ColorBgra.Black,
                ColorBgra.White,
                new float[] { 1.2f, 1.0f, 0.8f },
                ColorBgra.Black,
                ColorBgra.White);

            ImageSurface dest = Surface.Clone ();

            ColorBgra* dstPtr = (ColorBgra*)dest.DataPtr;
            int len = Surface.Data.Length / 4;

            op.Apply (dstPtr, len);

            using (Context g = new Context (Surface)) {
                g.AppendPath (PintaCore.Layers.SelectionPath);
                g.FillRule = FillRule.EvenOdd;
                g.Clip ();

                g.SetSource (dest);
                g.Paint ();
            }

            (dest as IDisposable).Dispose ();
        }