bitmap save c# jpeg quality code example
Example: c# encode jpg hiight quality
var encoder = ImageCodecInfo.GetImageEncoders().First(c => c.FormatID == ImageFormat.Jpeg.Guid);
var encParams = new EncoderParameters() { Param = new[] { new EncoderParameter(Encoder.Quality, 90L) } };
image.Save(path, encoder, encParams);