Multispectral correlations technique for finding phase transition temperatures in 7O.Om series
B. T. P. Madhav, M. Venu Gopala Rao, V. G. K. M. Pisipati · Liquid Crystals Today · 2015
Transition temperatures in N-(p-n-heptyloxybenzylidene)-p-n-alkyloxy anilines, 7O.Om liquid crystalline compounds are computed from optical textures using Multispectral Correlations Technique in image processing. The statistical parameters like mean, standard deviation and entropy of textures as a function of temperature are computed from the image processing technique. These results show abrupt changes as a function of temperature, indicating the phase transition of the 7O.Om samples. The MATLAB simulation results are in good agreement with DSC results and the proposed methodology is one of the techniques in giving reliable and suitable technique to identify transition temperatures at low cost.