Billedkvalitet forringes

Ja, du skal definere kvaliteten via den encoder som hoerer til det billedformat du oensker at gemme/udsende billedet som.

Proev at tilfoeje dette her (for jpg-formatet):

ImageCodecInfo myImageCodecInfo = GetEncoderInfo("image/jpeg");
EncoderParameters myEncoderParameters;
myEncoderParameters = new EncoderParameters(1);
EncoderParameter myEncoderParameter;
myEncoderParameter = new EncoderParameter(myEncoder, 90L);
myEncoderParameters.Param[0] = myEncoderParameter;

System.Drawing.Imaging.Encoder myEncoder;
myEncoder = System.Drawing.Imaging.Encoder.Quality;

outputImage.Save(Response.OutputStream, myImageCodecInfo, myEncoderParameters);

du skal ogsaa tilfoeje flg. funktion:

private ImageCodecInfo GetEncoderInfo(String mimeType)
{
    int i;
    ImageCodecInfo[] encoders;
    encoders = ImageCodecInfo.GetImageEncoders();
    for (i = 0; i < encoders.Length; ++i)
    {
        if(encoders[i].MimeType == mimeType)
            return encoders[i];
    }
    return null;
}

Haaber det virker for dig...