Thread: Jpeg Image File Size Gets Too Big on Resize - Asp .Net

Jpeg Image File Size Gets Too Big on Resize - Asp .Net

If you save a Bitmap in a jpeg format with 100% quality, your saved jpeg file size might be lot bigger then your original file size.

To avoid this you have to specify the quality param for jpeg files.

Here is some example codes in C#, considering you are saving to jpeg from a Bitmap.

Code:

System.Drawing.Imaging.ImageCodecInfo ici = GetImageCodec("image/jpeg");
System.Drawing.Imaging.EncoderParameters eps = new System.Drawing.Imaging.EncoderParameters(1);
eps.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 75L);
bmp.Save(imageFolderAbsolutePath + "/" + saveAsName, ici, eps);

public ImageCodecInfo GetImageCodec(string mimetype)
{
mimetype = mimetype.ToLower();
foreach (ImageCodecInfo ici in ImageCodecInfo.GetImageEncoders())
{
    if (ici.MimeType.ToLower() == mimetype)
    return ici;
}
return null;
}

thanx for sharing.....