--- a/Core/FileFormats/PngReader.cpp	Tue May 06 12:47:26 2014 +0200
+++ b/Core/FileFormats/PngReader.cpp	Tue May 06 12:52:28 2014 +0200
@@ -224,90 +224,6 @@
   }
 
 
-  void* ImageAccessor::GetBuffer()
-  {
-    if (readOnly_)
-    {
-      throw OrthancException(ErrorCode_ReadOnly);
-    }
-
-    return buffer_;
-  }
-
-
-  const void* ImageAccessor::GetConstRow(unsigned int y) const
-  {
-    if (buffer_ != NULL)
-    {
-      return reinterpret_cast<const uint8_t*>(buffer_) + y * pitch_;
-    }
-    else
-    {
-      return NULL;
-    }
-  }
-
-
-  void* ImageAccessor::GetRow(unsigned int y) 
-  {
-    if (readOnly_)
-    {
-      throw OrthancException(ErrorCode_ReadOnly);
-    }
-
-    if (buffer_ != NULL)
-    {
-      return reinterpret_cast<uint8_t*>(buffer_) + y * pitch_;
-    }
-    else
-    {
-      return NULL;
-    }
-  }
-
-
-  void ImageAccessor::AssignEmpty(PixelFormat format)
-  {
-    readOnly_ = false;
-    format_ = format;
-    width_ = 0;
-    height_ = 0;
-    pitch_ = 0;
-    buffer_ = NULL;
-  }
-
-
-  void ImageAccessor::AssignReadOnly(PixelFormat format,
-                                     unsigned int width,
-                                     unsigned int height,
-                                     unsigned int pitch,
-                                     const void *buffer)
-  {
-    readOnly_ = true;
-    format_ = format;
-    width_ = width;
-    height_ = height;
-    pitch_ = pitch;
-    buffer_ = const_cast<void*>(buffer);
-  }
-
-
-  void ImageAccessor::AssignWritable(PixelFormat format,
-                                     unsigned int width,
-                                     unsigned int height,
-                                     unsigned int pitch,
-                                     void *buffer)
-  {
-    readOnly_ = false;
-    format_ = format;
-    width_ = width;
-    height_ = height;
-    pitch_ = pitch;
-    buffer_ = buffer;
-  }
-
-
-
   namespace
   {
     struct MemoryBuffer