Пример #1
0
        /// <summary>
        /// Processes the image.
        /// </summary>
        /// <param name="factory">
        /// The the current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class containing
        /// the image to process.
        /// </param>
        /// <param name="image">The current image to process</param>
        /// <param name="newImage">The new Image to return</param>
        /// <returns>
        /// The processed image from the current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
        /// </returns>
        public Image TransformImage(ImageFactory factory, Image image, Image newImage)
        {
            using (Graphics graphics = Graphics.FromImage(newImage))
            {
                using (ImageAttributes attributes = new ImageAttributes())
                {
                    attributes.SetColorMatrix(this.Matrix);

                    Rectangle rectangle = new Rectangle(0, 0, image.Width, image.Height);

                    graphics.DrawImage(image, rectangle, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, attributes);

                    // Overlay the image with some semi-transparent colors to finish the effect.
                    using (GraphicsPath path = new GraphicsPath())
                    {
                        path.AddRectangle(rectangle);

                        // Paint a burgundy rectangle with a transparency of ~30% over the image.
                        // Paint a blue rectangle with a transparency of 20% over the image.
                        using (SolidBrush brush = new SolidBrush(Color.FromArgb(77, 38, 14, 28)))
                        {
                            Region oldClip = graphics.Clip;
                            graphics.Clip = new Region(rectangle);
                            graphics.FillRectangle(brush, rectangle);

                            // Fill the blue.
                            brush.Color = Color.FromArgb(51, 29, 32, 59);
                            graphics.FillRectangle(brush, rectangle);
                            graphics.Clip = oldClip;
                        }
                    }
                }
            }

            // Add brightness and contrast to finish the effect.
            factory.Update(newImage);
            Brightness brightness = new Brightness {
                DynamicParameter = 5
            };

            newImage = (Bitmap)brightness.ProcessImage(factory);

            factory.Update(newImage);
            Contrast contrast = new Contrast {
                DynamicParameter = 85
            };

            newImage = (Bitmap)contrast.ProcessImage(factory);

            // Reassign the image.
            image.Dispose();
            image = newImage;

            return(image);
        }
Пример #2
0
        /// <summary>
        /// Changes the brightness of the current image.
        /// </summary>
        /// <param name="percentage">
        /// The percentage by which to alter the images brightness.
        /// Any integer between -100 and 100.
        /// </param>
        /// <returns>
        /// The current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
        /// </returns>
        public ImageFactory Brightness(int percentage)
        {
            if (this.ShouldProcess)
            {
                // Sanitize the input.
                if (percentage > 100 || percentage < -100)
                {
                    percentage = 0;
                }

                Brightness brightness = new Brightness {
                    DynamicParameter = percentage
                };

                this.Image = brightness.ProcessImage(this);
            }

            return(this);
        }