Add colorspace option

rawkit/options.py

@@ -30,6 +30,19 @@
 :dcraw: ``-H 5``
 """
 
+raw_color = 0
+"""Raw colorspace (unique to each camera)"""
+srgb = 1
+"""sRGB D65 (default colorspace)"""
+adobe_rgb = 2
+"""Adobe RGB (1998) D65"""
+wide_gammut_rgb = 3
+"""Wide Gamut RGB D65"""
+kodak_prophoto_rgb = 4
+"""Kodak ProPhoto RGB D65"""
+xyz = 5
+"""XYZ colorspace"""
+
 
 class WhiteBalance(object):
 
@@ -81,7 +94,8 @@ class Options(object):
         '_shot',
         '_use_camera_matrix',
         '_white_balance',
-        '_highlight_mode'
+        '_highlight_mode',
+        '_colorspace'
     ]
     """The options which are supported by this class."""
 
@@ -93,6 +107,30 @@ def __init__(self):
             setattr(self, i, None)
         self.white_balance = WhiteBalance(auto=True, camera=True)
 
+    @property
+    def colorspace(self):
+        """
+        Sets the colorspace used for the output image. The following constants
+        may be used:
+
+          - :class:`rawkit.options.raw_color`
+          - :class:`rawkit.options.srgb`
+          - :class:`rawkit.options.adobe_rgb`
+          - :class:`rawkit.options.wide_gammut_rgb`
+          - :class:`rawkit.options.kodak_prophoto_rgb`
+          - :class:`rawkit.options.xyz`
+
+        :type: :class:`int`
+        :default: :class:`rawkit.options.srgb`
+        :dcraw: ``-o``
+        :libraw: :class:`rawkit.libraw.libraw_output_params_t.output_color`
+        """
+        return self._colorspace
+
+    @colorspace.setter
+    def colorspace(self, value):
+        self._colorspace = value
+
     @property
     def highlight_mode(self):
         """