Media/ImageHelper.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;


namespace ComLib.MediaSupport
{
    /// <summary>
    /// Helper class for graphics processing.
    /// </summary>
    public class ImageHelper
    {
        /// <summary>
        /// Convert byte arry to an image object.
        /// </summary>
        /// <param name="content">The bytes representing the image.</param>
        /// <returns>Image created from bytes.</returns>
        public static Image ConvertToImage(byte[] content)
        {
            MemoryStream ms = new MemoryStream(content);
            Image returnImage = Image.FromStream(ms);
            return returnImage;
        }


        /// <summary>
        /// Converts an image to a byte array.
        /// </summary>
        /// <param name="image">Image to convert.</param>
        /// <returns>Array of bytes with converted image.</returns>
        public byte[] ConvertToBytes(Image image)
        {            
            MemoryStream ms = new MemoryStream();
            image.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
            return ms.ToArray();
        }


        /// <summary>
        /// Converts an image to a byte array.
        /// </summary>
        /// <param name="image">Image to convert.</param>
        /// <param name="format">The format of the image.</param>
        /// <returns>Array of bytes with converted image.</returns>
        public byte[] ConvertToBytes(Image image, ImageFormat format)
        {
            MemoryStream ms = new MemoryStream();
            image.Save(ms, format);
            return ms.ToArray();
        }


        /// <summary>
        /// Convert the image contents as a byte[] into a thumbnail represented by another byte[].
        /// </summary>
        /// <param name="imageContents">The byte[] for the original contents.</param>