Add Matplotlib Perceptually Uniform Sequential colormaps (viridis, plasma, inferno, magma, cividis, twilight and twilight shifted).

modules/imgproc/include/opencv2/imgproc.hpp

@@ -4349,7 +4349,14 @@ enum ColormapTypes
     COLORMAP_HSV = 9, //!< ![HSV](pics/colormaps/colorscale_hsv.jpg)
     COLORMAP_PINK = 10, //!< ![pink](pics/colormaps/colorscale_pink.jpg)
     COLORMAP_HOT = 11, //!< ![hot](pics/colormaps/colorscale_hot.jpg)
-    COLORMAP_PARULA = 12 //!< ![parula](pics/colormaps/colorscale_parula.jpg)
+    COLORMAP_PARULA = 12, //!< ![parula](pics/colormaps/colorscale_parula.jpg)
+    COLORMAP_MAGMA = 13, //!< ![magma](pics/colormaps/colorscale_magma.jpg)
+    COLORMAP_INFERNO = 14, //!< ![inferno](pics/colormaps/colorscale_inferno.jpg)
+    COLORMAP_PLASMA = 15, //!< ![plasma](pics/colormaps/colorscale_plasma.jpg)
+    COLORMAP_VIRIDIS = 16, //!< ![viridis](pics/colormaps/colorscale_viridis.jpg)
+    COLORMAP_CIVIDIS = 17, //!< ![cividis](pics/colormaps/colorscale_cividis.jpg)
+    COLORMAP_TWILIGHT = 18, //!< ![twilight](pics/colormaps/colorscale_twilight.jpg)
+    COLORMAP_TWILIGHT_SHIFTED = 19 //!< ![twilight shifted](pics/colormaps/colorscale_twilight_shifted.jpg)
 };
 
 /** @example samples/cpp/falsecolor.cpp