Question

我正在运行多线程图像压缩过程。原始文件是1280x 960高分辨率PNG文件，大约1800KB。我需要压缩到＆lt; 70KB JPEG文件。当我处理几辆车时，这个过程运行良好。当我处理超过20辆车时，我开始出现内存错误。这是代码。

private static ImageCodecInfo GetEncoderInfo（String mimeType） { int j; ImageCodecInfo []编码器; encoders = ImageCodecInfo.GetImageEncoders（）; for（j = 0; j＆lt; encoders.Length; ++ j） { if（encoders [j] .MimeType == mimeType）返回编码器[j]; } return null; }

    public static void SaveAsJpg(string inFilePath = null, string outputFileName = null, long compression = 70, long quality = 70)
    {
        System.Drawing.Image orgimage = System.Drawing.Image.FromFile(inFilePath);
        var imgIn = new Bitmap(orgimage);
        var imgOut = new Bitmap(imgIn.Width, imgIn.Height);

        Graphics g = Graphics.FromImage(imgOut);
        g.Clear(Color.White);
        g.DrawImage(imgIn, 0, 0, imgIn.Width, imgIn.Height);

        EncoderParameters encoding = new EncoderParameters(2);
        encoding.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, compression);
        encoding.Param[1] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
        ImageCodecInfo myImageCodecInfo = GetEncoderInfo("image/jpeg");

        imgOut.Save(outputFileName, myImageCodecInfo, encoding);
    }

提前感谢任何建议。

Answer 1

我认为你需要在离开方法之前处理图形对象。

g.Dispose();
orgiImage.Dispose();
imgIn.Dispose();
imgOut.Dispose();

Disposing System.drawing objects

图像压缩过程出现内存错误

1 个答案: