<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hello,<div><br></div><div>I have just noticed that in SimpleITK on windows 64-bits that images are limited to 2GB (maybe 4GB for some opts) because the "long" type is still used for size by default.</div><div><br></div><div>ITK has the CMake variable ITK_USE_64BITSIDS to change this.</div><div><b><br></b></div><div><a href="https://github.com/Kitware/ITK/blob/master/CMakeLists.txt#L248">https://github.com/Kitware/ITK/blob/master/CMakeLists.txt#L248</a></div><div><a href="https://github.com/Kitware/ITK/blob/master/Modules/Core/Common/include/itkIntTypes.h#L122">https://github.com/Kitware/ITK/blob/master/Modules/Core/Common/include/itkIntTypes.h#L122</a></div><div><br></div><div>I also noticed that Slicer3D does not have this parameter set so it's ITK image size is limited.</div><div><br></div><div>Are we going to make this enabled by default in ITK at some point?</div><div><br></div><div>Has anyone tried enabling this is Slicer?</div><div><br></div><div>I am going to start with SimpleITK, and wondering what to expect.</div><div><br></div><div>Thanks,</div><div>Brad</div><div><br></div></body></html>