Image enhancement using virtual contrast image fusion on Fe3O4and ZnO nanodispersed decyloxy benzoic acid
B. T. P. Madhav, P. Pardhasaradhi, R. K. N. R. Manepalli, P. V. V. Kishore, V. G. K. M. Pisipati · Liquid Crystals · 2015
Low contrast and noisy photographic pictures can be considerably improved by image-processing techniques. Techniques like histogram equalisation produce high-contrast images but often fail to preserve the colour texture information. To overcome this deficiency, a contrast-enhancement approach has been devised, using virtual contrast image fusion (in Haar wavelet domain). This technique has been evaluated by a study of the optical textures of nano-dispersed decyloxybenzoic acid with small quantities of Fe3O4 and ZnO added.