added some properties to Image

nd2reader/model/__init__.py

@@ -71,10 +71,19 @@ class Image(object):
         """
         return self._timestamp / 1000.0
 
+    @property
+    def channel(self):
+        return self._channel
+
+    @property
+    def z_level(self):
+        return self._z_level
+
     @property
     def data(self):
         if self._data is None:
-            self._data = np.reshape(self._raw_data, (self._height, self._width)).astype(np.float64)
+            # The data is just a flat, 1-dimensional array. We convert it to a 2D array and cast the data points as 16-bit integers
+            self._data = np.reshape(self._raw_data, (self._height, self._width)).astype(np.int64).astype(np.uint16)
         return self._data
 
     @property

nd2reader/service/__init__.py

@@ -19,10 +19,18 @@ class BaseNd2(object):
 
     @property
     def height(self):
+        """
+        :return:    height of each image, in pixels
+
+        """
         return self._metadata['ImageAttributes']['SLxImageAttributes']['uiHeight']
 
     @property
     def width(self):
+        """
+        :return:    width of each image, in pixels
+
+        """
         return self._metadata['ImageAttributes']['SLxImageAttributes']['uiWidth']
 
     @property
@@ -54,6 +62,13 @@ class BaseNd2(object):
 
     @property
     def timepoint_count(self):
+        """
+        The number of images for a given field of view, channel, and z_level combination.
+        Effectively the number of frames.
+
+        :rtype:     int
+
+        """
         return self._image_count / self.field_of_view_count / self.z_level_count
 
     @property