How do I save an image to a folder after converting it?

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.NET4.6

I'm trying to save an image to a folder after having it in memory and converted. I can't find out how to get that done.

What I have tried:

private static Image ScaleImage(Image image, int maxHeight)
{
double scale;
if (image.Height >= maxHeight) { scale = maxHeight / (double)image.Height; }
else { scale = 1; }

Bitmap bmp = new Bitmap(image, Convert.ToInt32(image.Width * scale), Convert.ToInt32(image.Height * scale));

ImageCodecInfo jpgEncoder = GetEncoder(ImageFormat.Jpeg);
EncoderParameters jpgEncoderParameters = new EncoderParameters(1);
jpgEncoderParameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 100L);

MemoryStream ms = new MemoryStream();

bmp.Save(ms, jpgEncoder, jpgEncoderParameters);

return Image.FromStream(ms);
}

private static ImageCodecInfo GetEncoder(ImageFormat format)
{
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();

foreach (ImageCodecInfo codec in codecs)
{
if (codec.FormatID == format.Guid) { return codec; }
}
return null;
}
#endregion
private static void Job_UpdateStaffDBPics(string loc)
{
DirectoryInfo diSource = new DirectoryInfo(loc);

byte[] Pic = null;
byte[] StaffPicThumb = null;

foreach (FileInfo fi in diSource.GetFiles())
{
try
{
FileStream fs = fi.OpenRead();
Image imgSource = Image.FromStream(fs);
ImageConverter converter = new ImageConverter();
Pic = (byte[])converter.ConvertTo(ScaleImage(imgSource, 600), typeof(byte[]));
StaffPicThumb = (byte[])converter.ConvertTo(ScaleImage(imgSource, 128), typeof(byte[]));

MemoryStream ms = new MemoryStream(StaffPicThumb);
Image returnImage = Image.FromStream(ms);

returnImage.Save("ConvertedImage", ImageFormat.Jpeg);

//File.Copy(returnImage)

foreach (var item in Pic)
{

}

MessageBox.Show("Test");
}
catch (Exception ex) { MessageBox.Show(ex.Message); }
}
}
}

Posted 3-Mar-19 9:29am

Member 13975729

Updated 3-Mar-19 21:23pm

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Patrice T 3-Mar-19 22:50pm

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1 solution

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Wastedtalent · Answer 1 · 2019-03-03T21:24:00

Solution 1

You could do:

returnImage.Save("C:\image.ext", ImageFormat.Jpeg);

or bypass this bit and write the stream straight to a file

using (var fileStream = File.Create("C:\image.ext"))
{
    ms.InputStream.Seek(0, SeekOrigin.Begin);
    ms.InputStream.CopyTo(fileStream);
}

Posted 3-Mar-19 21:24pm

Wastedtalent