Papers by Jins Sebastian Arackaparampil
International journal of electrical & electronics research, Feb 5, 2024
Image compression plays a pivotal role in the medical field for the storage and transfer of DICOM... more Image compression plays a pivotal role in the medical field for the storage and transfer of DICOM images. This research work focuses on the compression of medical images using Set Partitioning in Hierarchy Trees (SPIHT) algorithm. The CT/MR images are used as input, the images are subjected to filtering by a median filter. The CT images in general are corrupted by Gaussian noise and MR images are corrupted by rician noise. The SPIHT algorithm comprises of following phases; transformation into wavelet domain, refinement pass and sorting pass. The Haar wavelet transform is employed and the wavelet coefficients are subjected to sorting and refinement pass. The Haar wavelet transform generates LL, HL, HL and HH sub-bands. In the sorting pass, the coefficients are classified into significant and insignificant. The refinement pass creates the precision bits for the significant coefficients. The main characteristic of the SPIHT algorithm is that it does not use an entropy coder. The reconstructed image in the decoding stage was validated by performance metrics. The SPIHT algorithm generates proficient results, when compared with the classical algorithms like wavelet and embedded zero tree wavelet (EZW) algorithms.
Zenodo (CERN European Organization for Nuclear Research), May 24, 2023
Nowadays while transferring and receiving the data like images, messages and other information, c... more Nowadays while transferring and receiving the data like images, messages and other information, certain encryption methods are used to increase the security of that data. By using the encryption method, we can prevent the loss of data or can maintain the confidentiality or integrity of the data. In this paper we will study about the survey that we conducted about the encryption of image using different cryptographic algorithms.
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Papers by Jins Sebastian Arackaparampil