转换不同图片格式（JPG，GIF，PNG等），以TIFF格式(Convert different p

我采取通过OCR阅读从图像文本。它仅支持TIFF格式的图片。

所以，我需要其他格式转换为TIFF格式。能不能做到？请帮助受

提供一些参考。

Answer 1:

如果你创建一个Image在.NET对象，你可以将其保存为TIFF。这是许多之一的imageformat随时为您的选择。

例：

var png = Image.FromFile("some.png");
png.Save("a.tiff", ImageFormat.Tiff);

你需要包括System.Drawing在你的项目中装配。这次大会将给你很多的图像处理能力。希望帮助。

Answer 2:

我用JPG，BMP，PNG和GIF测试这一点。适用于单页和多创作TIFF格式的。它传递一个全路径名的文件。希望它可以帮助别人。（从MSDN中提取）

public static string[] ConvertJpegToTiff(string[] fileNames, bool isMultipage)
    {
        EncoderParameters encoderParams = new EncoderParameters(1);
        ImageCodecInfo tiffCodecInfo = ImageCodecInfo.GetImageEncoders()
            .First(ie => ie.MimeType == "image/tiff");

        string[] tiffPaths = null;
        if (isMultipage)
        {
            tiffPaths = new string[1];
            System.Drawing.Image tiffImg = null;
            try
            {
                for (int i = 0; i < fileNames.Length; i++)
                {
                    if (i == 0)
                    {
                        tiffPaths[i] = String.Format("{0}\\{1}.tif",
                            Path.GetDirectoryName(fileNames[i]),
                            Path.GetFileNameWithoutExtension(fileNames[i]));

                        // Initialize the first frame of multipage tiff.
                        tiffImg = System.Drawing.Image.FromFile(fileNames[i]);
                        encoderParams.Param[0] = new EncoderParameter(
                            System.Drawing.Imaging.Encoder.SaveFlag, (long)EncoderValue.MultiFrame);
                        tiffImg.Save(tiffPaths[i], tiffCodecInfo, encoderParams);
                    }
                    else
                    {
                        // Add additional frames.
                        encoderParams.Param[0] = new EncoderParameter(
                            System.Drawing.Imaging.Encoder.SaveFlag, (long)EncoderValue.FrameDimensionPage);
                        using (System.Drawing.Image frame = System.Drawing.Image.FromFile(fileNames[i]))
                        {
                            tiffImg.SaveAdd(frame, encoderParams);
                        }
                    }

                    if (i == fileNames.Length - 1)
                    {
                        // When it is the last frame, flush the resources and closing.
                        encoderParams.Param[0] = new EncoderParameter(
                            System.Drawing.Imaging.Encoder.SaveFlag, (long)EncoderValue.Flush);
                        tiffImg.SaveAdd(encoderParams);
                    }
                }
            }
            finally
            {
                if (tiffImg != null)
                {
                    tiffImg.Dispose();
                    tiffImg = null;
                }
            }
        }
        else
        {
            tiffPaths = new string[fileNames.Length];

            for (int i = 0; i < fileNames.Length; i++)
            {
                tiffPaths[i] = String.Format("{0}\\{1}.tif",
                    Path.GetDirectoryName(fileNames[i]),
                    Path.GetFileNameWithoutExtension(fileNames[i]));

                // Save as individual tiff files.
                using (System.Drawing.Image tiffImg = System.Drawing.Image.FromFile(fileNames[i]))
                {
                    tiffImg.Save(tiffPaths[i], ImageFormat.Tiff);
                }
            }
        }

        return tiffPaths;
    }