C# .bmp转jpg

最新推荐文章于 2024-07-05 14:39:40 发布

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namespace bmp转jpg
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Bitmap image = new Bitmap("D:\\桌面\\Image.bmp");
            //转成jpg的准备工作
            var myEncoderParameters = new EncoderParameters(1);
            var myEncoderParameter = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 85L);
            myEncoderParameters.Param[0] = myEncoderParameter;
            ImageCodecInfo jpsEncodeer = GetEncoder(ImageFormat.Jpeg);

            //设置保存图片的路径并保存
            var path = "Shapes085.jpg";
            image.Save(path, jpsEncodeer, myEncoderParameters);

            //释放资源
            image.Dispose();
            myEncoderParameters.Dispose();
        }


        public static ImageCodecInfo GetEncoder(ImageFormat format)
        {
            ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();
            foreach (ImageCodecInfo codec in codecs)
            {
                if (codec.FormatID == format.Guid)
                    return codec;
            }
            return null;
        }
    }
}