Unsharp Masking-Based Image Enhancement of Nanodispersed 10O.O6 Liquid Crystal Compound

  • Y. KumariEmail author
  • N. V. Seshagiri Rao
  • A. Ramesh
  • G. V. Ramanaiah
Conference paper
Part of the Lecture Notes in Networks and Systems book series (LNNS, volume 33)


The main motto of the image enhancement in image processing is to process an image with suitable technique and to provide better visibility for a specific application. Novel image processing techniques are required to identify key features like transition temperatures, clear phase identification in the liquid crystalline images. Characterization and mesomorphic behavior in pure and 1% ZnO nanodispersed liquid crystalline N–(p–n–decyloxybenzylidene)–p–n–hexyloxy anilines, 10O.O6 compounds, are carried out using a polarizing microscope and images are preserved for enhancement. Both the compounds exhibit NACIG phases, and the transition temperatures of the 1% ZnO nanodispersed 10O.O6 are reduced compared with pure 10O.O6. Further, in this work, a novel image enhancement technique of combined unsharp masking is proposed on pure and 1% ZnO nanodispersed 10O.O6 liquid crystalline compounds for better visibility of phases at transition temperatures. The proposed method is used to identify the uniform regions and to detect the defects which may not be clearly observed from polarizing microscope.


Image enhancement Nanodispersed LC (Liquid crystal) compound Phase transitions Polarizing microscope Unsharp masking 



Authors like to express their gratitude toward the department of ECE and management of PSCMR College of Engineering for their support and encouragement.


  1. 1.
    Priestley EB, Wojtowicz PJ, Sheng P (1974) Introduction to liquid crystals. RCA Laboratories, Princeton, NJGoogle Scholar
  2. 2.
    Madhav BTP, Pardhasaradhi P, Manepalli RKNR, Pisipati VGKM (2015) Homomorphic filtering textural analysis technique to reduce multiplicative noise in the 11Oba nano-doped liquid crystalline compounds. Phase Trans 88(7):735–744CrossRefGoogle Scholar
  3. 3.
    Madhav BTP, Pardhasaradhi P, Manepalli RKNR, Pisipati VGKM (2015) Histogram equalisation technique to analyse induced cholesteric phase in nanodoped liquid crystalline compound. Liq Cryst 42(7):989–997CrossRefGoogle Scholar
  4. 4.
    Madhav BTP, Pardhasaradhi P, Manepalli RKNR, Kishore PVV, Pisipati VGKM (2015) Image enhancement using virtual contrast image fusion on Fe3O4 and ZnO nanodispersed decyloxy benzoic acid. Liq Cryst. Scholar
  5. 5.
    Madhav BTP, Gopala rao MV, Pisipati VGKM (2015) Multispectral correlations technique for finding phase transition temperatures in 7O.Om series. Liq Cryst Today 24(2):38–46CrossRefGoogle Scholar
  6. 6.
    Rambabu M, Prasad KRS, Venu Gopala Rao M, Madhav BTP, Pisipati VGKM (2015) Thermal and phase behavior studies of hydrogen-bonded compounds (SA:nOBA) using POM, DSC and image-processing techniques. Liq Cryst Today 24(3):81–92CrossRefGoogle Scholar
  7. 7.
    Madhav BTP, Gopala rao MV, Pisipati VGKM (2015) Identification of liquid crystalline phases in 7O.O9 compound based on structural similarity index measure, Taylor & Francis. Liq Cryst 42(2):198–203CrossRefGoogle Scholar
  8. 8.
    Pardhasaradhi P, Madhav BTP, Gopalarao MV, Manepalli RKNR, Pisipati VGKM (2015) Gradient measurement technique to identify phase transitions in nano dispersed liquid crystalline compounds. Phase Trans.

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Y. Kumari
    • 1
    Email author
  • N. V. Seshagiri Rao
    • 1
  • A. Ramesh
    • 1
  • G. V. Ramanaiah
    • 1
  1. 1.Department of ECEPSCMR College of Engineering and TechnologyVijayawadaIndia

Personalised recommendations