Image enhancement using virtual contrast image fusion on Fe₃O₄ and ZnO nanodispersed decyloxy benzoic acid

Abstract

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.

Keywords:

• histogram equalisation (HE)
• image enhancement
• liquid crystals (LC)
• nano dispersed decyloxy benzoic acid
• s10Oba
• virtual contrast image fusion
• wavelet domain

Acknowledgements

Authors like to express their deep gratitude towards the department of ECE, K L University, Vaddeswaram, The Hindu College, Machilipatnam, for their continuous support and encouragement during this work.

ORCID

V.G.K.M. Pisipati http://orcid.org/0000-0003-2382-4400

B.T.P. Madhav http://orcid.org/0000-0002-6893-6978

Additional information

Funding

Dr RKNR Manepalli (Dr. M. Ramakrishna Nanchara Rao) wants to show his gratitude to UGC [grant number 42-784/2013] (SR).