Histogram equalisation technique to analyse induced cholesteric phase in nanodoped liquid crystalline compound

Abstract

The 1% Fe 3 O 4 nanodoped in dodecyloxy benzoic acid induces cholesteric phase quenching the nematic phase that the pure compound exhibits. Further, the solid-solid transition also occurs when compared to the pure compound and the transition temperatures are reduced along with the cholesteric thermal ranges of LC phases. The histogram is the operation by which the occurrences of intensity value in the image is shown. Further, histogram equalisation is the technique through which the dynamic range of the histogram of an image can be increased. Histogram equalisation method is used in this article to analyse the 12Oba + 1% Fe 3 O 4 nanodoped liquid crystalline textures by considering global and local image information and for the adjustment of image intensities to enhance the contrast. The basic idea of histogram equalisation is to remap the grey levels of the image, and this method is used to identify the uniform regions and detect the defects that are not clearly observed from the textures that are recorded by polarising microscope.

Homomorphic filtering textural analysis technique to reduce multiplicative noise in the 11Oba nano-doped liquid crystalline compounds

“…The histogram method is one good technique for image enhancement in liquid crystalline textures. [3] When dealing with discrete quantities, we work with histograms and call the preceding technique histogram equalization, although in general, the histogram of the processed image will not be uniform, due to the discrete nature of the variables. Sung-Jea [4] proposed and analyzed the properties of centre weighted median filters and adaptive centre weighted median filters, which preserve image details.…”

Image enhancement using virtual contrast image fusion on Fe3O4and ZnO nanodispersed decyloxy benzoic acid

“…Hence, these low-contrast microscopic images require post-processing methods in order to produce highcontrast image. Many techniques are proposed based on image histogram, [8][9][10] transform, [11][12][13][14] exposure [15] and fusion-based methods. [16] Histogram equalisation (HE) is one of the most widely used method for contrast enhancement.…”

Возвратные Фазы В Компенсированных Феррохолестериках

“…Однако в последние годы в связи с успехами синтеза геликоидальных ферросус-пензий появилось множество экспериментальных ра-бот [4][5][6][7][8][9][10][11][12][13], в которых изучаются различные свойства этих новых мягких магнитных материалов. Имеющиеся теоретические работы посвящены в основном гелико-идальным феррохолестерикам [14][15][16][17][18][19][20]; компенсирован-ные ФХ до сих пор не рассматривались.…”