Open Access Open Access  Restricted Access Subscription or Fee Access

Contour Detection and Recovery through Bio-Medical Watermarking for Telediagnosis

K. Pal, V.H. Mankar, T.S. Das, S. K. Sarkar

Abstract


The current paper presents a medical watermarking method through contour detection and recovery for the authenticity of bio-medical images, which uses the region growing algorithm and human visual system (HVS). The proposed scheme makes the use of neighbourhood region for converting non-specific discontinuous region into specific continuous contour data. This contour as a fragile watermark is embedded in the perceptually insignificant, spatially selected detail coefficients using sub band adaptive threshold scheme along with the EPR as a robust one. Here, a new type of non-oblivious detection method is also proposed. The improvement in performance is supported through experimental results. The reported result shows improvement in visual and statistical invisibility of the hidden data. Moreover, this algorithmic architecture utilizes the existing allocated bandwidth in the data transmission channel in a more efficient manner.

Keywords


Bio-Medical Image, Medical Watermarking, Contour, Region Growing, HVS, Fragile watermark, Discrete Wavelet transform

Full Text:

PDF


Disclaimer/Regarding indexing issue:

We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information. Also: DOI is paid service which provided by a third party. We never mentioned that we go for this for our any journal. However, journal have no objection if author go directly for this paid DOI service.