High Frequency Enhancement By Birefringent Lens

descriptionPublicationkeyboard_double_arrow_right Article 01 Sep 1980 English Publisher:Springer Science and Business Media LLCJournal:Journal of Optics, volume 9, pages 58-63 (issn: 0972-8821, eissn: 0974-6900,

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Authors: Ajay Ghosh;

doi: 10.1007/bf03549023

High Frequency Enhancement By Birefringent Lens

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Abstract

The present paper reports the experimental realisation of the high frequency enhancement technique by utilising a birefringent lens suggested by Chakraborty and Mandal Adhikari (1). It is shown that the subtraction of a focussed and a defocussed image of binary objects reveals their edges. The technique may equally be used for enhancement of the high frequency informations of tonal objects.

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