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Automatic wheat ear counting using thermal imagery
This work was supported by MINECO, Spain (project number AGL2016-76527-R) as the primary funding support for the research project; the project “Formación de Talento Humano de Alto Nivel” (project number BPIN 2013000100103) approved by the “Fondo de Ciencia, Tecnología e Innovación”, from the “Sistema General de Regalías”; and “Gobernación del Tolima—Universidad del Tolima, Colombia” as the sole funding source of the first author J.A.F.-G. Contribution of J.L.A. was supported in part by ICREA Academia, Generalitat de Catalunya, Spain.
Journal Article
A DWT-SVD based robust digital watermarking for medical image security
•The proposed approach is a hybrid scheme based on a discrete wavelet transforms and singular value decomposition.•The proposed approach being blind, the watermarked image is sufficient to identify the patient.•The integrity of the extracted information can be verified by comparing the hash embedded in the image.•Our approach allows insertion of a large amount of data while preserving a reasonable imperceptibility.•In terms of robustness, the two variants are resistant to filtering and compression attacks while maintaining a good NCC.
In this work, we propose a blind watermarking approach for medical image protection. In this approach, the watermark will be constituted of the Electronic Patient Record and the image acquisition data. In order to enhance the security and guarantee the data integrity, the Electronic Patient Record hash will be added to the watermark. The integration process is based on a DWT-SVD combination, a DWT is applied to the retinal image, then, an SVD is applied to the LL sub-band. The watermark will be then integrated into the least significant bits of the S component obtained by combining the parity of the successive coefficients. Experimental results for imperceptibility and robustness show that the proposed scheme maintains a high quality watermarked image and remains highly robust against several conventional attacks.
Journal Article
