Exemplos de Bitmap.AdjustCurves2 em C# (CSharp)

Exemplo n.º 1

        private static Bitmap ProcessImage(Bitmap image, byte blueThreshold = 139)
        {
            try
            {
                var imageClone = image.Clone(new Rectangle(0, 0, image.Width, image.Height), image.PixelFormat);

                var info = new CaptchaInfo();
                imageClone = imageClone.AdjustCurves2()
                             .GetCaptchaInfo(ref info);

                imageClone = image.AdjustCurves2()
                             .CleanUnecessaryPixel(info)
                             .BlackenColor()
                             .CleanUnecessaryPixel(info)
                             .Sharpen();


                return(imageClone);
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }

            return(null);
        }