ScaleToDouble() static private method

static private ScaleToDouble ( Byte value ) : double
value System.Byte
return double
コード例 #1
0
 private ColorGray(IMagickColor <QuantumType> color)
     : base(color)
 {
     _shade =
         (0.212656 * Quantum.ScaleToDouble(color.R)) +
         (0.715158 * Quantum.ScaleToDouble(color.G)) +
         (0.072186 * Quantum.ScaleToDouble(color.B));
 }
コード例 #2
0
        /// <summary>
        /// Converts the value of this instance to an equivalent Color.
        /// </summary>
        /// <returns>A <see cref="Color"/> instance.</returns>
        public Color ToColor()
        {
            if (!_isCmyk)
            {
                return(Color.FromArgb(Quantum.ScaleToByte(A), Quantum.ScaleToByte(R), Quantum.ScaleToByte(G), Quantum.ScaleToByte(B)));
            }

            var r = Quantum.ScaleToQuantum(Quantum.Max - ((Quantum.ScaleToDouble(R) * (Quantum.Max - K)) + K));
            var g = Quantum.ScaleToQuantum(Quantum.Max - ((Quantum.ScaleToDouble(G) * (Quantum.Max - K)) + K));
            var b = Quantum.ScaleToQuantum(Quantum.Max - ((Quantum.ScaleToDouble(B) * (Quantum.Max - K)) + K));

            return(Color.FromArgb(Quantum.ScaleToByte(A), Quantum.ScaleToByte(r), Quantum.ScaleToByte(g), Quantum.ScaleToByte(b)));
        }