/// <summary>
/// Saves an image as a jpeg image, with the given quality
/// </summary>
/// <param name="path"> Path to which the image would be saved. </param>
/// <param name="quality"> An Enumeration based on 0 to 100, with 100 being the highest quality. </param>
public static void SaveJpeg(string path, Image img, PictureQuality quality)
{
// Encoder parameter for image quality
EncoderParameter qualityParam = new EncoderParameter(Encoder.Quality, (int)quality);
// JPEG image codec
ImageCodecInfo jpgCodec = GetEncoderInfo("image/jpeg");
EncoderParameters encoderParams = new EncoderParameters(1);
encoderParams.Param[0] = qualityParam;
img.Save(path, jpgCodec, encoderParams);
}
/// <summary>
/// Saves an image as a jpeg image, with the given quality and size (keeps original ratio)
/// </summary>
/// <param name="path"> Path to which the image would be saved. </param>
/// <param name="quality"> An Enumeration based on 0 to 100, with 100 being the highest quality. </param>
public static void SaveJpeg(string path, Image img, PictureQuality quality, int maxWidth, int maxHeight)
{
double ratio = CalculateImageRatio(img, maxWidth, maxHeight);
int newWidth = (int)(img.Width * ratio);
int newHeight = (int)(img.Height * ratio);
var newImage = new Bitmap(newWidth, newHeight, PixelFormat.Format24bppRgb);
using (Graphics graphics = Graphics.FromImage(newImage))
{
graphics.CompositingQuality = CompositingQuality.HighQuality;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.SmoothingMode = SmoothingMode.HighQuality;
graphics.DrawImage(img, 0, 0, newWidth, newHeight);
}
SaveJpeg(path, newImage, quality);
}
/// <summary>
/// Saves an image as a jpeg image, with the given quality
/// </summary>
/// <param name="path"> Path to which the image would be saved. </param>
/// <param name="quality"> An Enumeration based on 0 to 100, with 100 being the highest quality. </param>
public static void SaveJpeg(string path, Stream stream, PictureQuality quality)
{
Image img = Image.FromStream(stream);
SaveJpeg(path, img, quality);
}
/// <summary>
/// Saves an image as a jpeg image, with the given quality
/// </summary>
/// <param name="path"> Path to which the image would be saved. </param>
/// <param name="quality"> An Enumeration based on 0 to 100, with 100 being the highest quality. </param>
public static void SaveJpeg(string path, IntPtr hBitmap, PictureQuality quality)
{
Image img = Image.FromHbitmap(hBitmap);
SaveJpeg(path, img, quality);
}
/// <summary>
/// Saves an image as a jpeg image, with the given quality and size (keeps original ratio)
/// </summary>
/// <param name="path"> Path to which the image would be saved. </param>
/// <param name="quality"> An Enumeration based on 0 to 100, with 100 being the highest quality. </param>
public static void SaveJpeg(string path, Stream stream, PictureQuality quality, int maxWidth, int maxHeight)
{
Image img = Image.FromStream(stream);
SaveJpeg(path, img, quality, maxWidth, maxHeight);
}
/// <summary>
/// Saves an image as a jpeg image, with the given quality and size (keeps original ratio)
/// </summary>
/// <param name="path"> Path to which the image would be saved. </param>
/// <param name="quality"> An Enumeration based on 0 to 100, with 100 being the highest quality. </param>
public static void SaveJpeg(string path, IntPtr hBitmap, PictureQuality quality, int maxWidth, int maxHeight)
{
Image img = Image.FromHbitmap(hBitmap);
SaveJpeg(path, img, quality, maxWidth, maxHeight);
}
