Re: Jpeg Compression Ratio

We do something like this

EncoderParameters ep = new EncoderParameters(1);
ep.Param[0] = new EncoderParameter(Encoder.Quality, 80L);
using (FileStream fs = new FileStream(path, FileMode.Create))
{
  image.Save(fs, GetImageCodec("image/jpeg"), ep);
}

Where GetImageCodec is
ImageCodecInfo GetImageCodec(string mimeType)
{
  ImageCodecInfo[] codecs = ImageCodecInfo.GetImageEncoders();

  for (int i = 0; i < codecs.Length; i++)
  {
    if (codecs[i].MimeType == mimeType)
      return codecs[i];
  }

  return null;
}

HTH
// Ryan

On Fri, Nov 21, 2008 at 11:42 AM, Simon Robinson
<[email protected]> wrote:
> If I have a System.Drawing.Bitmap instance and want to save it as a jpg file, does anyone happen to know if there's a way to control the compression ratio it gets saved as?
>
> Ta :-)
>
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