コード例 #1
0
        static void writeColorConversionPath(ColorInfo c1, ColorInfo c2)
        {
            var path = ColorDepthConverter.GetPath(c1, c2);

            //var path = ColorDepthConverter.GetMostInexepnsiveConversionPath(c1, c2);
            Console.Write("{0} => {1}:  ", c1, c2);
            Console.CursorLeft = 40;

            //Console.Write("Cast: {0}", !ColorDepthConverter.ConversionPathCopiesData(path));
            Console.CursorLeft = 55;

            if (path.Count == 0)
            {
                Console.ForegroundColor = ConsoleColor.Red;
                Console.WriteLine("NO PATH");
                Console.ResetColor();
                return;
            }
            else if (path.CopiesData() == false)
            {
                Console.ForegroundColor = ConsoleColor.Blue;
                Console.WriteLine("cast");
                Console.ResetColor();
                return;
            }

            Console.ForegroundColor = ConsoleColor.Green;
            foreach (var stage in path)
            {
                Console.Write("=>  ({0} => {1})", stage.Source, stage.Destination);
            }
            Console.ResetColor();

            Console.WriteLine();
        }
コード例 #2
0
        /// <summary>
        /// Returns if an image can be casted to UnmanagedImage without data copy.
        /// </summary>
        /// <param name="image">Generic image</param>
        /// <returns>Is image cast-able to UnmanagedImage.</returns>
        public static bool CanCastToAForgeImage(this IImage image)
        {
            ColorInfo[] preferedColors = BitmapConversionExtensions.PixelFormatMappings.Forward.ToArray();
            var         conversionPath = ColorDepthConverter.GetPath(image.ColorInfo, preferedColors);

            bool isImageCopied = ColorDepthConverter.CopiesData(conversionPath);

            return(!isImageCopied);
        }
コード例 #3
0
        /// <summary>
        /// Converts the image from source to destination color and depth.
        /// Data may be shared if casting is used. To prevent that set <paramref name="copyAlways"/> to true.
        /// </summary>
        /// <param name="image">Image.</param>
        /// <param name="destColor">Destination color info.</param>
        /// <param name="copyAlways">Forces data copy even if a casting is enough.</param>
        /// <param name="failIfCannotCast">If data copy is needed throws an exception.</param>
        /// <returns>Converted image.</returns>
        public static IImage Convert(this IImage image, ColorInfo destColor, bool copyAlways = false, bool failIfCannotCast = false)
        {
            if (image == null)
            {
                return(null);
            }

            var conversionPath = ColorDepthConverter.GetPath(image.ColorInfo, destColor);

            if (conversionPath == null /*it should never be null*/ || conversionPath.Count == 0)
            {
                throw new Exception(String.Format("Image does not support conversion from {0} to {1}", image.ColorInfo.ColorType, destColor.ColorType));
            }

            if (failIfCannotCast && conversionPath.CopiesData() == true)
            {
                throw new Exception("Fail if cannot cast is set to true: Image data must be copied");
            }

            var convertedIm = ColorDepthConverter.Convert(image, conversionPath.ToArray(), copyAlways);

            return(convertedIm);
        }