Convert Bitmaps to One Multipage Tiff Image in .Net 2.0

Convert bitmaps to one multipage TIFF image in .NET 2.0

Start with the first bitmap by putting it into an Image object

Bitmap bitmap = (Bitmap)Image.FromFile(file);

Save the bitmap to memory as tiff

MemoryStream byteStream = new MemoryStream();
bitmap.Save(byteStream, ImageFormat.Tiff);

Put Tiff into another Image object

Image tiff = Image.FromStream(byteStream)

Prepare encoders:

var encoderInfo = ImageCodecInfo.GetImageEncoders().First(i => i.MimeType == "image/tiff");

EncoderParameters encoderParams = new EncoderParameters(2);
encoderParams.Param[0] = new EncoderParameter(Encoder.Compression, (long)EncoderValue.CompressionNone);
encoderParams.Param[1] = new EncoderParameter(Encoder.SaveFlag, (long)EncoderValue.MultiFrame);

Save to file:

tiff.Save(sOutFilePath, encoderInfo, encoderParams);

For subsequent pages, prepare encoders:

EncoderParameters EncoderParams = new EncoderParameters(2);
EncoderParameter SaveEncodeParam = new EncoderParameter(
     Encoder.SaveFlag, 
     (long)EncoderValue.FrameDimensionPage);
EncoderParameter CompressionEncodeParam = new EncoderParameter(
     Encoder.Compression, (long)EncoderValue.CompressionNone);
EncoderParams.Param[0] = CompressionEncodeParam;
EncoderParams.Param[1] = SaveEncodeParam;
tiff.SaveAdd(/* next image as tiff - do the same as above with memory */, EncoderParams);

Finally flush the file:

EncoderParameter SaveEncodeParam = new EncoderParameter(
     Encoder.SaveFlag, (long)EncoderValue.Flush);
EncoderParams = new EncoderParameters(1);
EncoderParams.Param[0] = SaveEncodeParam;
tiff.SaveAdd(EncoderParams);

That should get you started.

Create Tiff File from multiple BitmapImage

How to convert this list to single multi-page Tiff file

In UWP app, we can use BitmapEncoder to encode a Tiff image file to contain several frames. BitmapEncoder.SetPixelData method can be used for setting pixel data on one frame and then BitmapEncoder.GoToNextFrameAsync can asynchronously commits the current frame data and appends a new empty frame to be edited. So the Tiff image can be created by multiply images.

Suppose I want to create a Tiff image file from three images that are located on my local folder, I decode and read pixel data from them and set to the Tiff image. Sample code as follows:

 private async void btnConvert_Click(object sender, RoutedEventArgs e)
 {
     StorageFolder localfolder = ApplicationData.Current.LocalFolder;
     StorageFile image1 = await localfolder.GetFileAsync("caffe1.jpg");
     StorageFile image2 = await localfolder.GetFileAsync("caffe2.jpg");
     StorageFile image3 = await localfolder.GetFileAsync("caffe3.jpg");
     StorageFile targettiff = await localfolder.CreateFileAsync("temp.tiff", CreationCollisionOption.ReplaceExisting);
     WriteableBitmap writeableimage1;
     WriteableBitmap writeableimage2;
     WriteableBitmap writeableimage3;
     using (IRandomAccessStream stream = await image1.OpenAsync(FileAccessMode.Read))
     {
         SoftwareBitmap softwareBitmap;
         BitmapDecoder decoder = await BitmapDecoder.CreateAsync(stream);
         softwareBitmap = await decoder.GetSoftwareBitmapAsync();
         writeableimage1 = new WriteableBitmap(softwareBitmap.PixelWidth, softwareBitmap.PixelHeight);
         writeableimage1.SetSource(stream);
     }
     using (IRandomAccessStream stream = await image2.OpenAsync(FileAccessMode.Read))
     {
         SoftwareBitmap softwareBitmap;
         BitmapDecoder decoder = await BitmapDecoder.CreateAsync(stream);
         softwareBitmap = await decoder.GetSoftwareBitmapAsync();
         writeableimage2 = new WriteableBitmap(softwareBitmap.PixelWidth, softwareBitmap.PixelHeight);
         writeableimage2.SetSource(stream);
     }
     using (IRandomAccessStream stream = await image3.OpenAsync(FileAccessMode.Read))
     {
         SoftwareBitmap softwareBitmap;
         BitmapDecoder decoder = await BitmapDecoder.CreateAsync(stream);
         softwareBitmap = await decoder.GetSoftwareBitmapAsync();
         writeableimage3 = new WriteableBitmap(softwareBitmap.PixelWidth, softwareBitmap.PixelHeight);
         writeableimage3.SetSource(stream);
     }

     using (IRandomAccessStream ras = await targettiff.OpenAsync(FileAccessMode.ReadWrite, StorageOpenOptions.None))
     {
         BitmapEncoder encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.TiffEncoderId, ras);
         var stream = writeableimage1.PixelBuffer.AsStream();
         byte[] buffer = new byte[stream.Length];
         await stream.ReadAsync(buffer, 0, buffer.Length);

         var stream2 = writeableimage2.PixelBuffer.AsStream();
         byte[] buffer2 = new byte[stream2.Length];
         await stream2.ReadAsync(buffer2, 0, buffer2.Length);

         var stream3 = writeableimage3.PixelBuffer.AsStream();
         byte[] buffer3 = new byte[stream3.Length];
         await stream3.ReadAsync(buffer3, 0, buffer3.Length);

         encoder.SetPixelData(BitmapPixelFormat.Bgra8, BitmapAlphaMode.Ignore, (uint)writeableimage1.PixelWidth, (uint)writeableimage1.PixelHeight, 96.0, 96.0, buffer);
         await encoder.GoToNextFrameAsync();
         encoder.SetPixelData(BitmapPixelFormat.Bgra8, BitmapAlphaMode.Ignore, (uint)writeableimage2.PixelWidth, (uint)writeableimage2.PixelHeight, 96.0, 96.0, buffer2);
         await encoder.GoToNextFrameAsync();
         encoder.SetPixelData(BitmapPixelFormat.Bgra8, BitmapAlphaMode.Ignore, (uint)writeableimage3.PixelWidth, (uint)writeableimage3.PixelHeight, 96.0, 96.0, buffer3);
         await encoder.FlushAsync();
     }
 }

The temp.tiff will be created successfully. I'm not sure how you got the image byte array, but BitmapImage cannot be directly written to or updated, you need to got WriteableBitmap object from your byte array. If you don't know how to get the WriteableBitmap please try to reference the following code or save the BitmapImage to local folder and using the code I provided above.

public async Task<WriteableBitmap> SaveToImageSource(byte[] imageBuffer)
{             
    using (MemoryStream stream = new MemoryStream(imageBuffer))
    {
        var ras = stream.AsRandomAccessStream();
        BitmapDecoder decoder = await BitmapDecoder.CreateAsync(BitmapDecoder.JpegDecoderId, ras);
        var provider = await decoder.GetPixelDataAsync();
        byte[] buffer = provider.DetachPixelData();
        WriteableBitmap ablebitmap = new WriteableBitmap((int)decoder.PixelWidth, (int)decoder.PixelHeight);
        await ablebitmap.PixelBuffer.AsStream().WriteAsync(buffer, 0, buffer.Length);
        return ablebitmap;
    }           
}

More details please reference the official sample.

C#: How do I convert a multi-page TIFF via MemoryStream into one long image?

I'm guessing that you'll have to loop over each frame in the TIFF.

Here's an excerpt from Split multi page tiff file:

private void Split(string pstrInputFilePath, string pstrOutputPath) 
    { 
        //Get the frame dimension list from the image of the file and 
        Image tiffImage = Image.FromFile(pstrInputFilePath); 
        //get the globally unique identifier (GUID) 
        Guid objGuid = tiffImage.FrameDimensionsList[0]; 
        //create the frame dimension 
        FrameDimension dimension = new FrameDimension(objGuid); 
        //Gets the total number of frames in the .tiff file 
        int noOfPages = tiffImage.GetFrameCount(dimension); 

        ImageCodecInfo encodeInfo = null; 
        ImageCodecInfo[] imageEncoders = ImageCodecInfo.GetImageEncoders(); 
        for (int j = 0; j < imageEncoders.Length; j++) 
        { 
            if (imageEncoders[j].MimeType == "image/tiff") 
            { 
                encodeInfo = imageEncoders[j]; 
                break; 
            } 
        } 

        // Save the tiff file in the output directory. 
        if (!Directory.Exists(pstrOutputPath)) 
            Directory.CreateDirectory(pstrOutputPath); 

        foreach (Guid guid in tiffImage.FrameDimensionsList) 
        { 
            for (int index = 0; index < noOfPages; index++) 
            { 
                FrameDimension currentFrame = new FrameDimension(guid); 
                tiffImage.SelectActiveFrame(currentFrame, index); 
                tiffImage.Save(string.Concat(pstrOutputPath, @"\", index, ".TIF"), encodeInfo, null); 
            } 
        } 
    } 

You should be able to adapt the logic above to append onto your JPG rather than create separate files.

How to open a multi-frame TIFF imageformat image in .NET 2.0?

Here's what I use:

private List<Image> GetAllPages(string file)
{
    List<Image> images = new List<Image>();
    Bitmap bitmap = (Bitmap)Image.FromFile(file);
    int count = bitmap.GetFrameCount(FrameDimension.Page);
    for (int idx = 0; idx < count; idx++)
    {
        // save each frame to a bytestream
        bitmap.SelectActiveFrame(FrameDimension.Page, idx);
        MemoryStream byteStream = new MemoryStream();
        bitmap.Save(byteStream, ImageFormat.Tiff);

        // and then create a new Image from it
        images.Add(Image.FromStream(byteStream));
    }
    return images;
}

How can I create a multi page Tiff file from a large string value

You are already measuring the string and know the size of A4, so I assume your problem is that you don't know how to create a TIFF with multiple pages in it.

If so, look at this answer to a similar question:

https://stackoverflow.com/a/7675996/3937

The upshot is to use Bitmap.SaveAdd() to add images to an existing TIFF

Convert List of Images to Single Tiff File Using MagickImage.NET

It seems like there is a problem with this line return imagecoll.ToByteArray();, the image is a multipage tiff image and the length of the byte array returned is too small compared with the images being added to the tiff image. I found an overloaded method which takes image format as a parameter using MagickFormat enum, in my case I usedMagickFormat.Tiff.

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