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diff --git a/src/silx/utils/enum.py b/src/silx/utils/enum.py
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+# coding: utf-8
+# /*##########################################################################
+#
+# Copyright (c) 2019 European Synchrotron Radiation Facility
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+# ###########################################################################*/
+"""An :class:`.Enum` class with additional features."""
+
+from __future__ import absolute_import
+
+__authors__ = ["T. Vincent"]
+__license__ = "MIT"
+__date__ = "29/04/2019"
+
+
+import enum
+
+
+class Enum(enum.Enum):
+    """Enum with additional class methods."""
+
+    @classmethod
+    def from_value(cls, value):
+        """Convert a value to corresponding Enum member
+
+        :param value: The value to compare to Enum members
+           If it is already a member of Enum, it is returned directly.
+        :return: The corresponding enum member
+        :rtype: Enum
+        :raise ValueError: In case the conversion is not possible
+        """
+        if isinstance(value, cls):
+            return value
+        for member in cls:
+            if value == member.value:
+                return member
+        raise ValueError("Cannot convert: %s" % value)
+
+    @classmethod
+    def members(cls):
+        """Returns a tuple of all members.
+
+        :rtype: Tuple[Enum]
+        """
+        return tuple(member for member in cls)
+
+    @classmethod
+    def names(cls):
+        """Returns a tuple of all member names.
+
+        :rtype: Tuple[str]
+        """
+        return tuple(member.name for member in cls)
+
+    @classmethod
+    def values(cls):
+        """Returns a tuple of all member values.
+
+        :rtype: Tuple
+        """
+        return tuple(member.value for member in cls)