how to compress image in c
public static void CompressImage(string sourcepath, string destpath, int quality)
{
var FileName = Path.GetFileName(sourcepath);
destpath = destpath + "\\" + FileName;
using (Bitmap bmpl = new Bitmap(sourcepath))
{
ImageCodecInfo jpgEncoder = GetEncoder(ImageFormat.Jpeg);
System.Drawing.Imaging.Encoder QualityEncoder = System.Drawing.Imaging.Encoder.Quality;
EncoderParameters myEncoderParameters = new EncoderParameters(1);
EncoderParameter myEncoderParameter = new EncoderParameter(QualityEncoder, quality);
myEncoderParameters.Param[0] = myEncoderParameter;
bmpl.Save(destpath, jpgEncoder, myEncoderParameters);
}
}
private static ImageCodecInfo GetEncoder(ImageFormat format)
{
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();
foreach(ImageCodecInfo codec in codecs)
{
if(codec.FormatID==format.Guid)
{
return codec;
}
}
return null;
}
private void button3_Click(object sender, EventArgs e)
{
string[] files = Directory.GetFiles(textBox1.Text);
DialogResult result2 = folderBrowserDialog1.ShowDialog();
if (result2 == DialogResult.OK)
{
foreach (var file in files)
{
string ext = Path.GetExtension(file).ToUpper();
if (ext == ".PNG" || ext == ".JPG")
{
CompressImage(file, folderBrowserDialog1.SelectedPath, (int)comboBox1.SelectedItem);
}
else
{
MessageBox.Show("The selected file: " + textBox1.Text + " does not contain no imege.", "Compress Unsuccessfull!", MessageBoxButtons.OK, MessageBoxIcon.Warning);
ClassGV.image = 1;
break;
}
}
if (ClassGV.image != 1)
{
MessageBox.Show("Compressed images has been stored to\n" + folderBrowserDialog1.SelectedPath, "Compress Successfull!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}