不改变图片尺寸对图片进行压缩，亲测10M的图片压缩成了1M左右，图片还没有失真，真可谓无损压缩，棒棒哒
public frmZIpPhoto()
{
InitializeComponent();
}
private void btnAdd_Click(object sender, EventArgs e)
{
openFileDialog1.ShowDialog();
if (openFileDialog1.FileName != "")
{
txtPhotoF.Text = openFileDialog1.FileName;
txtPhotoZF.Text = openFileDialog1.FileName.Replace(openFileDialog1.SafeFileName, "Z" openFileDialog1.SafeFileName);
}
}
private void btnZip_Click(object sender, EventArgs e)
{
try
{
File.Copy(txtPhotoF.Text, txtPhotoZF.Text, true);
Compression(txtPhotoZF.Text, decimal.MaxValue,txtSize.Text);
MessageBox.Show("操作成功！新的文件名为：Z" openFileDialog1.SafeFileName);
}
catch
{
MessageBox.Show("操作失败！");
}
}
protected void Compression(string filePath, decimal vfileSize,string vZipSize)
{
FileInfo file = new FileInfo(filePath);
// decimal fileSize = Math.Round((decimal)file.Length / 512, 1); // KB
decimal fileSize = Math.Round((decimal)file.Length / 1024, 1); // KB
if (fileSize > (decimal.Parse(vZipSize)) && vfileSize > fileSize) // Optimazed image shouldn't be more than 60KB
{
try
{
System.Drawing.Image originalImage = System.Drawing.Image.FromFile(filePath);
Bitmap bitmap = new Bitmap(originalImage);
ImageCodecInfo imageCodecInfo = ImageCodecInfo.GetImageEncoders().FirstOrDefault(it => it.MimeType == "image/jpeg");
EncoderParameters encoderParameters = new EncoderParameters(1);
EncoderParameter encoderParameter = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 30L);
encoderParameters.Param[0] = encoderParameter;
originalImage.Dispose();
bitmap.Save(filePath, imageCodecInfo, encoderParameters); // Override
bitmap.Dispose();
vfileSize = fileSize;
// More than 60KB will compression again
Compression(filePath, vfileSize,vZipSize);
}
catch (Exception)
{
}
finally
{
file = null;
}
}
}
资源文件列表
PhotoZIP2.sln , 869
PhotoZIP2/BESCRO~1.ICO , 2238
PhotoZIP2/bin/Debug/PhotoZIP2.exe , 14848
PhotoZIP2/bin/Debug/PhotoZIP2.pdb , 22016
PhotoZIP2/bin/Debug/PhotoZIP2.vshost.exe , 11600
PhotoZIP2/bin/Debug/PhotoZIP2.vshost.exe.manifest , 490
PhotoZIP2/bin/Release/PhotoZIP2.exe , 18432
PhotoZIP2/bin/Release/PhotoZIP2.pdb , 26112
PhotoZIP2/bin/Release/PhotoZIP2.vshost.exe , 22984
PhotoZIP2/bin/Release/PhotoZIP2.vshost.exe.manifest , 490
PhotoZIP2/Form1.cs , 3607
PhotoZIP2/Form1.Designer.cs , 8874
PhotoZIP2/Form1.resx , 10086
PhotoZIP2/obj/x86/Debug/DesignTimeResolveAssemblyReferences.cache , 4501
PhotoZIP2/obj/x86/Debug/DesignTimeResolveAssemblyReferencesInput.cache , 6275
PhotoZIP2/obj/x86/Debug/GenerateResource.read.1.tlog , 526
PhotoZIP2/obj/x86/Debug/GenerateResource.write.1.tlog , 502
PhotoZIP2/obj/x86/Debug/PhotoZIP2.csproj.FileListAbsolute.txt , 643
PhotoZIP2/obj/x86/Debug/PhotoZIP2.exe , 14848
PhotoZIP2/obj/x86/Debug/PhotoZIP2.frmZIpPhoto.resources , 2804
PhotoZIP2/obj/x86/Debug/PhotoZIP2.pdb , 22016
PhotoZIP2/obj/x86/Debug/PhotoZIP2.Properties.Resources.resources , 180
PhotoZIP2/obj/x86/Release/DesignTimeResolveAssemblyReferences.cache , 5420
PhotoZIP2/obj/x86/Release/DesignTimeResolveAssemblyReferencesInput.cache , 7060
PhotoZIP2/obj/x86/Release/PhotoZIP2.csproj.FileListAbsolute.txt , 608
PhotoZIP2/obj/x86/Release/PhotoZIP2.csproj.GenerateResource.Cache , 975
PhotoZIP2/obj/x86/Release/PhotoZIP2.csprojResolveAssemblyReference.cache , 9174
PhotoZIP2/obj/x86/Release/PhotoZIP2.exe , 18432
PhotoZIP2/obj/x86/Release/PhotoZIP2.frmZIpPhoto.resources , 2804
PhotoZIP2/obj/x86/Release/PhotoZIP2.pdb , 26112
PhotoZIP2/obj/x86/Release/PhotoZIP2.Properties.Resources.resources , 180
PhotoZIP2/PhotoZIP2.csproj , 5484
PhotoZIP2/PhotoZIP2.csproj.user , 452
PhotoZIP2/Program.cs , 496
PhotoZIP2/Properties/AssemblyInfo.cs , 1368
PhotoZIP2/Properties/Resources.Designer.cs , 2869
PhotoZIP2/Properties/Resources.resx , 5612
PhotoZIP2/Properties/Settings.Designer.cs , 1095
PhotoZIP2/Properties/Settings.settings , 249