diff --git a/gui/chart/chartCornerpoints.m b/gui/chart/chartCornerpoints.m
index 2f097907..bd6dac30 100644
--- a/gui/chart/chartCornerpoints.m
+++ b/gui/chart/chartCornerpoints.m
@@ -49,9 +49,12 @@
 %  routines, without the specialization for MCC.  This will require some
 %  fixing of the sceneSet,oiSet, ... and so forth. 
 
-if ieNotDefined('obj'), error('Sensor or IP object required.'); end
+if ieNotDefined('obj'), error('Scene,oi,sensor or ip object required.'); end
 if ieNotDefined('wholeChart'), wholeChart = false; end
 
+ieReplaceObject(obj);
+ieRefreshWindow(obj.type);
+
 if ~wholeChart
     % Get the user to select corner points in the window.
     cornerPoints = vcPointSelect(obj,4,...
@@ -69,7 +72,7 @@
             cornerPoints = [1,y; x,y; x,1; 1,1];
         end
         obj = sceneSet(obj,'chart corners',cornerPoints);
-        vcReplaceObject(obj);
+        ieReplaceObject(obj);
         sceneWindow;
         
     case 'opticalimage'
@@ -109,7 +112,7 @@
         ipWindow
         
     otherwise
-        error('Unknown object type');
+        error('Unknown object type %s\n',obj.type);
 end
 
 
diff --git a/gui/ieRefreshWindow.m b/gui/ieRefreshWindow.m
index a4c12991..35c4590c 100644
--- a/gui/ieRefreshWindow.m
+++ b/gui/ieRefreshWindow.m
@@ -1,18 +1,27 @@
-function ieRefreshWindow(objType)
+function hdl = ieRefreshWindow(objType)
 %Refresh one of the four types of windows
 %
+% Synopsis
 %   ieRefreshWindow(objType)
 %
+% Input
+%  objType:  A string defining the object type.  If obj is an ISETCam
+%            struct, then this could be obj.type 
+%
+% Output
+%   hdl:     Handle to the window
+%
 %Purpose:
 %   Issue a refresh to one of the ISET windows.  This routine is useful
 %   when you have changed the data and would like the window to update
 %   according to the new data.
 %
 % Example:
-%    vcReplaceObject(scene); ieRefreshWindow('scene');
-%    vcReplaceObject(oi); ieRefreshWindow('oi');
-%    vcReplaceObject(isa); ieRefreshWindow('isa');
+%    ieReplaceObject(scene); ieRefreshWindow('scene');
+%    vcReplaceObject(oi); ieRefreshWindow('opticalimage');
+%    vcReplaceObject(isa); ieRefreshWindow('sensor');
 %    vcReplaceObject(vcimage); ieRefreshWindow('vcimage');
+%    ieReplaceObject(obj); ieRefreshWindow(obj.type);
 %
 % Copyright ImagEval Consultants, LLC, 2003.
 
@@ -22,19 +31,19 @@ function ieRefreshWindow(objType)
 
 switch lower(objType)
     case {'scene'}
-        h = sceneWindow; 
+        hdl = sceneWindow; 
 
-    case {'opticalimage'}
-        h = oiWindow; 
+    case {'opticalimage','oi'}
+        hdl = oiWindow; 
        
-    case {'isa'}
-        h = sensorImageWindow; 
+    case {'isa','sensor'}
+        hdl = sensorImageWindow; 
         
-    case {'vcimage'}
-        h = ipWindow; 
+    case {'vcimage','ip'}
+        hdl = ipWindow; 
         
     otherwise
         error('Unknown object type');
 end
 
-return;
\ No newline at end of file
+end
diff --git a/imgproc/ipMCCXYZ.m b/imgproc/ipMCCXYZ.m
new file mode 100644
index 00000000..3b73b81d
--- /dev/null
+++ b/imgproc/ipMCCXYZ.m
@@ -0,0 +1,104 @@
+function [macbethXYZ, whiteXYZ, cornerPoints] = ipMCCXYZ(ip,cornerPoints,method)
+%Estimate XYZ values of the MCC patches and the image white point from ip
+%
+%  [macbethXYZ, whiteXYZ] = ipMCCXYZ(ip,pointLoc,method)
+%
+% We assume the ip has an image of the MCC in its output field
+%
+% ip:        The virtual camera image structure 
+% pointLoc:  Outer points of the MCC (usually selected by user)
+% method:    We either assume the display is an sRGB display (method =
+%            'sRGB'), or we use the model display in the processor window
+%            (method = 'custom').
+%
+% macbethXYZ:  24 x 3
+% whiteXYZ:    3 x 1, white point, which is macbethXYZ(4,:)
+% pointLoc:    Locations of the points in the image
+%
+% The MCC white patch the fourth row, first column.
+%
+% ieExamplesPrint('ipMCCXYZ');
+%
+% See Also: 
+%    macbethColorError, macbethEvaluationGraphs
+%
+
+% Examples:
+%{
+  ip = ieGetObject('ip'); 
+ [macbethXYZ, whiteXYZ] = ipMCCXYZ(ip);
+ ieNewGraphWin;
+ plot3(macbethXYZ(:,1),macbethXYZ(:,2),macbethXYZ(:,3),'o')
+ xy = chromaticity(macbethXYZ);
+ clf; plot(xy(:,1),xy(:,2),'o'); hold on; plotSpectrumLocus; 
+ grid on; axis equal
+
+ macbethLAB = ieXYZ2LAB(macbethXYZ,whiteXYZ, 1);
+ clf; plot3(macbethLAB(:,1),macbethLAB(:,2), macbethLAB(:,3),'o'); 
+ set(gca,'xlim',[0 105]); grid on
+%}
+
+
+%% Check input variables
+if ieNotDefined('ip'), ip = ieGetObject('ip'); end
+if ieNotDefined('method'), method = 'sRGB'; end
+
+% These pointLoc values are the coordinates of the corners of the MCC in
+% the image.  
+% The extracted rgbData from the processor window are assumed to be linear
+% values, not sRGB values or gamma corrected.  They are the linear display
+% primaries.
+if ieNotDefined('cornerPoints')
+    % macbethSelect will prompt the user to identify corners.
+    [rgbData, mLocs, pSize, cornerPoints] = macbethSelect(ip);
+    if isempty(rgbData)
+        fprintf('%s: user canceled\n',mfilename);
+        macbethXYZ = []; whiteXYZ = []; cornerPoints = [];
+        return;
+    end
+    clear mLocs
+    clear pSize
+else
+    % The user is not bothered
+    rgbData = macbethSelect(ip,0,0,cornerPoints);
+end
+
+%% Compute the 
+
+switch(lower(method))
+    case 'srgb'
+        % The display is treated as an sRGB.
+
+        % We read the data and convert them into sRGB values.
+        rgbLSRGB = lrgb2srgb(ieClip(rgbData,0,1));
+        
+        % When convert the sRGB values into XYZ values for the RGB*L data.
+        % The format for sgb2xyz is (row,col,colorVector).  We treat the
+        % MCC as one row, 24 columns, each with three entries.
+        rgbLSRGB = XW2RGBFormat(rgbLSRGB,4,6);        
+        macbethXYZ = srgb2xyz(rgbLSRGB);  % Y is in cd/m2
+        % vcNewGraphWin; image(xyz2srgb(macbethXYZ)); 
+
+    case 'custom'
+        % The routine imageRGB2XYZ accounts for the currently loaded
+        % display model, particularly the SPD of the display, to compute
+        % the MCC's XYZ values on the display.
+        rgbData = XW2RGBFormat(rgbData,4,6);
+        macbethXYZ = imageRGB2XYZ(ip,rgbData);
+        % vcNewGraphWin; image(xyz2srgb(macbethXYZ))
+
+end
+
+
+% Squeeze the singleton dimension
+% Also, the data are now single format.  For various CIELAB calculations
+% they need to be double.  So double() them here.
+macbethXYZ = double(RGB2XWFormat(macbethXYZ));
+
+% We pull out the white point to be a 3-vector from the more complex image
+% structure.
+whiteIndex = 4;
+whiteXYZ   = double(macbethXYZ(whiteIndex,:));
+
+
+end
diff --git a/imgproc/vcimageMCCXYZ.m b/imgproc/vcimageMCCXYZ.m
index 4d34b14f..fa6f63b0 100644
--- a/imgproc/vcimageMCCXYZ.m
+++ b/imgproc/vcimageMCCXYZ.m
@@ -1,5 +1,7 @@
 function [macbethXYZ, whiteXYZ, cornerPoints] = vcimageMCCXYZ(vci,cornerPoints,method)
-%Estimate XYZ values of the MCC patches and the image white point from vci
+%DEPRECATED:  Estimate XYZ values of the MCC patches and the image white point from vci
+%
+%  USE ieMCCZYZ;
 %
 %  [macbethXYZ, whiteXYZ] = vcimageMCCXYZ(vci,pointLoc,method)
 %
@@ -34,6 +36,9 @@
 % See Also: macbethColorError, macbethEvaluationGraphs
 %
 
+error('Use ieMCCXYZ');
+%
+%{
 %% Check input variables
 if ieNotDefined('vci'), vci = vcGetObject('vcimage'); end
 if ieNotDefined('method'), method = 'sRGB'; end
@@ -97,3 +102,4 @@
 
 
 end
+%}
diff --git a/scene/macbeth/macbethColorError.m b/scene/macbeth/macbethColorError.m
index cabf0402..588875d8 100644
--- a/scene/macbeth/macbethColorError.m
+++ b/scene/macbeth/macbethColorError.m
@@ -24,8 +24,8 @@
 %           to use the monitor model stored in the vci.
 %
 % Example:
-%   vci = vcGetObject('vcimage');
-%   [macbethXYZ, whiteXYZ] = vcimageMCCXYZ(vci);
+%   ip = vcGetObject('ip');
+%   [macbethXYZ, whiteXYZ] = ipMCCXYZ(vci);
 %
 % Copyright ImagEval Consultants, LLC, 2003.
 
@@ -75,7 +75,7 @@
 
 % These are Processor window XYZ values using the monitor model.  They are
 % computed using a model monitor with peak luminance of Y = 1 cd/m2.
-[macbethXYZ, whiteMacbethXYZ, cornerPoints] = vcimageMCCXYZ(vci,cornerPoints,method);
+[macbethXYZ, whiteMacbethXYZ, cornerPoints] = ipMCCXYZ(vci,cornerPoints,method);
 vci = ipSet(vci,'mcc corner points',cornerPoints);
 vci = macbethDrawRects(vci);        % Make sure we have ther rects
 vci = macbethDrawRects(vci,'off');  % Now turn it all off
diff --git a/scene/macbeth/macbethPatchData.m b/scene/macbeth/macbethPatchData.m
index 92c40863..ffdcda7a 100644
--- a/scene/macbeth/macbethPatchData.m
+++ b/scene/macbeth/macbethPatchData.m
@@ -17,7 +17,7 @@
 %          standard deviatons 
 %
 % See Also:  
-%   macbethSelect, vcimageMCCXYZ, vcGetROIData, macbethColorError
+%   macbethSelect, ipMCCXYZ, vcGetROIData, macbethColorError
 %
 
 % Examples:
@@ -25,8 +25,6 @@
 % Add example
 %}
 
-
-
 %% Parse inputs
 
 if ieNotDefined('obj'),   error('vcimage or sensor required'); end