diff --git a/src/@Image/adjustDynamic.m b/src/@Image/adjustDynamic.m
index 6452f60..9af75c2 100644
--- a/src/@Image/adjustDynamic.m
+++ b/src/@Image/adjustDynamic.m
@@ -99,8 +99,8 @@
 function [mini, maxi] = computeExtremeValues(data) %#ok<DEFNU>
 % compute min and max (finite) values in image
 
-mini = min(obj(isfinite(data)));
-maxi = max(obj(isfinite(data)));
+mini = min(data(isfinite(data)));
+maxi = max(data(isfinite(data)));
 
 % If the difference is too small, use default range check
 if abs(maxi - mini) < 1e-12
diff --git a/src/@Image/centroid.m b/src/@Image/centroid.m
index 2a96393..a048f33 100644
--- a/src/@Image/centroid.m
+++ b/src/@Image/centroid.m
@@ -66,7 +66,7 @@
     end
   
 elseif nd == 3
-    dim = size(img);
+    dim = size(obj.Data);
     for i = 1:nLabels
         % extract points of the current particle
         inds = find(obj.Data == labels(i));
diff --git a/src/@Image/channel.m b/src/@Image/channel.m
index b649838..f7b2a3e 100644
--- a/src/@Image/channel.m
+++ b/src/@Image/channel.m
@@ -68,7 +68,7 @@
 if length(channelNames) == 1
     newName = sprintf('%s-%s', obj.Name, channelNames{1});
 else
-    newName = sprintf('%s-channels', obj.Name, channelName);
+    newName = sprintf('%s-channels', obj.Name);
 end
     
 % create a new Image
diff --git a/src/@Image/char.m b/src/@Image/char.m
index a81d926..8427756 100644
--- a/src/@Image/char.m
+++ b/src/@Image/char.m
@@ -15,10 +15,10 @@
 % Created: 2010-12-09,    using Matlab 7.9.0.529 (R2009b)
 % Copyright 2010 INRA - Cepia Software Platform.
 
-nd = getDimension(obj);
+nd = ndims(obj);
 
 pattern = repmat('%d x ', 1, nd);
 pattern(end-2:end) = [];
 pattern = [ pattern ' %s'];
 
-string = sprintf(pattern, getSize(obj), class(obj));
+string = sprintf(pattern, size(obj), class(obj));
diff --git a/src/@Image/fileInfo.m b/src/@Image/fileInfo.m
index 02ab141..6e10524 100644
--- a/src/@Image/fileInfo.m
+++ b/src/@Image/fileInfo.m
@@ -5,9 +5,9 @@
 %
 %   Currently supported file formats include:
 %   * all the formats recognized by the imread function (see imfinfo)
-%   * Analyze (see (see imfinfo))
+%   * Analyze (see analyze75info)
 %   * Dicom (see dicominfo)
-%   * MetaImage
+%   * MetaImage (from Kitware)
 %   * VGI
 %
 %   Example
@@ -19,7 +19,7 @@
  
 % ------
 % Author: David Legland
-% e-mail: david.legland@inra.fr
+% e-mail: david.legland@inrae.fr
 % Created: 2019-08-22,    using Matlab 9.6.0.1072779 (R2019a)
 % Copyright 2019 INRA - Cepia Software Platform.
 
@@ -34,7 +34,7 @@
         info = imfinfo(fileName);
         
     case 'hdr'
-        info = c(fileName);
+        info = analyze75info(fileName);
         
     case 'dicom'
         info = dicominfo(fileName);
diff --git a/src/@Image/unfold.m b/src/@Image/unfold.m
index c29afb3..51656d2 100644
--- a/src/@Image/unfold.m
+++ b/src/@Image/unfold.m
@@ -1,8 +1,8 @@
-function [tab, coordsTab] = unfold(obj)
-% Unfold a vector image and returns Table instance.
+function [data, coords] = unfold(obj)
+% Unfold a vector image.
 %
 %   TAB = unfold(VIMG);
-%   Unfold the vector image VIMG, and returns Table instance with as many
+%   Unfold the vector image VIMG, and returns an array with as many
 %   rows as the number of pixels in VIMG, and as many columns as the number
 %   of channels.
 %
@@ -51,7 +51,7 @@
 
 % create data table
 data = reshape(obj.Data, [nr nc]);
-tab = Table(data, colNames);
+% tab = Table(data, colNames);
 
 % optionnaly creates table of coordinates
 if nargout > 1
@@ -60,6 +60,6 @@
     ly = 1:size(obj, 2);
     [y, x] = meshgrid(ly, lx);
     coords = [reshape(x, [numel(x) 1]), reshape(y, [numel(x) 1])];
-    coordsTab = Table(coords, {'x', 'y'}, tab.RowNames);
+%     coordsTab = Table(coords, {'x', 'y'}, tab.RowNames);
 end
  
\ No newline at end of file