dicom thumbs

helpers/images.py

@@ -1,6 +1,13 @@
 import base64
 import mimetypes
 
+from io import BytesIO
+
+from PIL import Image, ImageFile
+
+import pydicom
+from .pydicom_PIL import get_PIL_image
+
 def image_as_base64(image_file):
     """
     :param `image_file` for the complete path of image.
@@ -14,4 +21,37 @@ def image_as_base64(image_file):
     #    encoded_string = base64.b64encode(img_f.read())
     encoded_string = base64.b64encode(image_file.file.read())
     mimetype, enc = mimetypes.guess_type(image_file.path)
-    return "data:image/{};base64,{}".format(mimetype, encoded_string.decode("utf-8"))
+    return "data:image/{};base64,{}".format(mimetype, encoded_string.decode("utf-8"))
+
+
+
+def pil_dicom_image(source, exif_orientation=True, **options):
+    """
+    Try to open the source file directly using PIL, ignoring any errors.
+    exif_orientation
+        If EXIF orientation data is present, perform any required reorientation
+        before passing the data along the processing pipeline.
+    """
+    # Use a BytesIO wrapper because if the source is an incomplete file like
+    # object, PIL may have problems with it. For example, some image types
+    # require tell and seek methods that are not present on all storage
+    # File objects.
+    #if not source:
+    #    return
+    #source = BytesIO(source.read())
+
+    ds = pydicom.read_file("filename")
+
+    image = get_PIL_image(ds)
+
+    #with Image.open(source) as image:
+    #    # Fully load the image now to catch any problems with the image contents.
+    #    try:
+    #        ImageFile.LOAD_TRUNCATED_IMAGES = True
+    #        image.load()
+    #    finally:
+    #        ImageFile.LOAD_TRUNCATED_IMAGES = False
+
+    #if exif_orientation:
+    #    image = utils.exif_orientation(image)
+    return image