C# (CSharp) ImageMagick.ImageOptimizers PngOptimizer.LosslessCompress 예제들

LosslessCompress() 공개 메소드

Performs lossless compression on the file. If the new file size is not smaller the file won't be overwritten.

public LosslessCompress ( FileInfo file ) : void
file	System.IO.FileInfo	The png file to optimize
리턴	void

예제 #1

파일: PngOptimizerTests.cs 프로젝트: levesque/Magick.NET

    public void Test_RemoveAlpha()
    {
      string tempFile = Path.GetTempPath() + Guid.NewGuid().ToString() + ".png";
      try
      {
        using (MagickImage image = new MagickImage(Files.MagickNETIconPNG))
        {
          Assert.IsTrue(image.HasAlpha);
          image.ColorAlpha(new MagickColor("yellow"));
          image.HasAlpha = true;
          image.Write(tempFile);

          image.Read(tempFile);

          // TODO: Figure out why this does not fail in a single run but does when all tests are run.
          //Assert.IsTrue(image.HasAlpha);

          PngOptimizer optimizer = new PngOptimizer();
          optimizer.LosslessCompress(tempFile);

          image.Read(tempFile);
          Assert.IsFalse(image.HasAlpha);
        }
      }
      finally
      {
        if (File.Exists(tempFile))
          File.Delete(tempFile);
      }
    }

예제 #2

파일: PngOptimizerTests.cs 프로젝트: dlemstra/Magick.NET

    public void Test_RemoveAlpha()
    {
      string tempFile = GetTemporaryFileName(".png");

      try
      {
        using (MagickImage image = new MagickImage(Files.MagickNETIconPNG))
        {
          Assert.IsTrue(image.HasAlpha);
          image.ColorAlpha(new MagickColor("yellow"));
          image.HasAlpha = true;
          image.Write(tempFile);

          image.Read(tempFile);

          Assert.IsTrue(image.HasAlpha);

          PngOptimizer optimizer = new PngOptimizer();
          optimizer.LosslessCompress(tempFile);

          image.Read(tempFile);
          Assert.IsFalse(image.HasAlpha);
        }
      }
      finally
      {
        File.Delete(tempFile);
      }
    }