将多个多页tiff图像合并到单个tiff C＃ [英] Merge multiple multi-page tiff images to a single tiff C#

问题描述

在我的方案中，我需要3个或更多多页tiff图像，我需要将它们合并为一个tiff图像。

In my scenario I have 3 or more multi-page tiff images which I need to merge into a single tiff image.

下面是我尝试过的代码。它合并到单个tiff图像中，但仅与所有tiff图像的第一页合并。

Below is the the code I have tried. It merges in to a single tiff image but only with first page of all tiff images.

private static void MergeTiff(string[] sourceFiles)
{
    string[] sa = sourceFiles;
    //get the codec for tiff files
    ImageCodecInfo info = null;
    foreach (ImageCodecInfo ice in ImageCodecInfo.GetImageEncoders())
        if (ice.MimeType == "image/tiff")
            info = ice;

    //use the save encoder
    Encoder enc = Encoder.SaveFlag;

    EncoderParameters ep = new EncoderParameters(1);
    ep.Param[0] = new EncoderParameter(enc, (long)EncoderValue.MultiFrame);

    Bitmap pages = null;

    int frame = 0;

    foreach (string s in sa)
    {
        if (frame == 0)
        {
            MemoryStream ms = new MemoryStream(File.ReadAllBytes(Path.Combine(Environment.CurrentDirectory, @"C:\Data_Warehouse\SVNRepository\CD.BNS.W5555.LT45555C.D180306.T113850.Z0101\", s)));
            pages = (Bitmap)Image.FromStream(ms);

            var appDataPath = @"C:\Data_Warehouse\SVNRepository\Tiffiles\";
            var filePath = Path.Combine(appDataPath, Path.GetRandomFileName() + ".tif");

            //save the first frame
            pages.Save(filePath, info, ep);
        }
        else
        {
            //save the intermediate frames
            ep.Param[0] = new EncoderParameter(enc, (long)EncoderValue.FrameDimensionPage);

            try
            {
                MemoryStream mss = new MemoryStream(File.ReadAllBytes(Path.Combine(Environment.CurrentDirectory, @"C:\Data_Warehouse\SVNRepository\CD.BNS.W5555.LT45555C.D180306.T113850.Z0101\", s)));
                Bitmap bm = (Bitmap)Image.FromStream(mss);
                pages.SaveAdd(bm, ep);
            }
            catch (Exception e)
            {
                //LogError(e, s);
            }
        }

        if (frame == sa.Length - 1)
        {
            //flush and close.
            ep.Param[0] = new EncoderParameter(enc, (long)EncoderValue.Flush);
            pages.SaveAdd(ep);

        }

        frame++;
    }

}

我需要加入多个tiff图像每个tiff图片中的所有页面。

I need to join multiple tiff images with all pages from each tiff image. Please advise!

谢谢

编辑：请从下面的答案中更新

EDIT: Updated from below answer

if (frame == 0)
            {
                MemoryStream ms = new MemoryStream(File.ReadAllBytes(Path.Combine(Environment.CurrentDirectory, @"C:\OMTest\Working\", s)));
                pages = (Bitmap)Image.FromStream(ms);

                var appDataPath = @"C:\Data_Warehouse\SVNRepository\Tiffiles\";
                var filePath = Path.Combine(appDataPath, Path.GetRandomFileName() + ".tif");

                //save the first frame
                pages.Save(filePath, info, ep);

                //Save the second frame if any
                int frameCount1 = pages.GetFrameCount(FrameDimension.Page);
                if (frameCount1 > 1)
                {
                    for (int i = 1; i < frameCount1; i++)
                    {
                        ep.Param[0] = new EncoderParameter(enc, (long)EncoderValue.FrameDimensionPage);
                        pages.SelectActiveFrame(FrameDimension.Page, i);
                        pages.SaveAdd(pages, ep);
                    }
                }
            }
            else
            {
                //save the intermediate frames
                ep.Param[0] = new EncoderParameter(enc, (long)EncoderValue.FrameDimensionPage);
                try
                {
                    MemoryStream mss = new MemoryStream(File.ReadAllBytes(Path.Combine(Environment.CurrentDirectory, @"C:\OMTest\Working\", s)));
                    Bitmap bm = (Bitmap)Image.FromStream(mss);
                    int frameCount = bm.GetFrameCount(FrameDimension.Page);
                    for (int i = 0; i < frameCount; i++)
                    {
                        bm.SelectActiveFrame(FrameDimension.Page, i);
                        pages.SaveAdd(bm, ep);
                    }
                }
                catch (Exception e)
                {
                    //LogError(e, s);
                }
            }

推荐答案

您需要选择活动框架，以确保您在TIFF上获取所有页面。在您的代码中，您需要获取帧数并循环浏览。

You need to select the active frame to ensure you are getting all pages on the TIFF. In your code you need to get the count of frames and loop through these.

您else块中的代码可能如下所示：

The code in your else block might look something like this:

MemoryStream mss = new MemoryStream(File.ReadAllBytes(Path.Combine(Environment.CurrentDirectory, @"C:\Data_Warehouse\SVNRepository\CD.BNS.W5555.LT45555C.D180306.T113850.Z0101\", s)));
Bitmap bm = (Bitmap)Image.FromStream(mss);
int frameCount = bm.GetFrameCount(FrameDimension.Page);
for(int i=0;i<frameCount;i++){
    bm.SelectActiveFrame(FrameDimension.Page, i);
    pages.SaveAdd(bm, ep);
}

您可能需要对其进行调整，因为我尚未对其进行测试。

You may have to tweak it as I haven't tested it.

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