从MemoryStream压缩fo-dicom JPEG图像

Question

我希望加载一个dicom图像并将其保存到jpeg，如下面的fo-dicom文档代码所示：

var image = new DicomImage(@"test.dcm");
image.RenderImage().AsBitmap().Save(@"test.jpg");      

但是，我正在从MemoryStream打开dicom文件，我想将jpeg保存为字节数组。这在FO-DICOM中是可能的吗？

Answer 1

private byte[] JpegBytesFromDicomStream(Stream stream)
{
    byte[] result;

    // Open image from Stream using DicomFile class
    DicomFile file = DicomFile.Open(stream);
    DicomImage image = new DicomImage(file.Dataset);

    using (IImage renderedImage = image.RenderImage())
    {
        Bitmap bitmap = renderedImage.AsSharedBitmap();

        // Copy image to byte array using MemoryStream
        using (MemoryStream targetStream = new MemoryStream())
        {
            bitmap.Save(targetStream, ImageFormat.Jpeg);
            result = targetStream.ToArray();
        }
    }

    return result;
}