This post is about running ncorr with newer versions of MATLAB. With help from [1], I edited the ncorr.m. The following section of the ncorr.m should be edited if MATLAB version is newer than 2023a. The code to be replaced starts at line 176 in the ncorr.m and continues till line 185. ncorr can be downloaded from [2].
Replace
% Initialize opengl ------------------------------------------%
% In earlier versions of Matlab this will fix inverted plots
% Plotting tools are also run based on opengl
if (ispc)
data_opengl = opengl('data');
if (~data_opengl.Software)
% Set opengl to software
opengl('software');
end
end
Replacement Code
if ispc
if verLessThan('matlab', '9.14') % R2023a or earlier
data_opengl = opengl('data');
if ~data_opengl.Software
opengl('software');
end
else
% In newer versions, opengl('data') is deprecated
info = rendererinfo(gca);
% Only set to software if info contains field 'GraphicsRenderer'
if isfield(info, 'GraphicsRenderer')
renderer_type = lower(info.GraphicsRenderer);
if ~contains(renderer_type, 'software')
opengl('software');
end
else
% If field is missing, assume hardware and force software
opengl('software');
end
end
end
References
[1] OpenAI. (2025). ChatGPT (June 2025 version) [Large language model]. https://chat.openai.com/chat
[2] https://github.com/justinblaber/ncorr_2D_matlab
