Analysis of Non- Subsampled Contourlet Transform for Medical Image Fusion

Abstract

group of pixels in several source images, and the fused image may then be produced. Fused images have the advantage of being more informative than the original image and containing original data. The non-subsampled contourlet transform (NSCT) provides a multiresolution, multidirectional, and multiscale, frameworks for the calculation of discrete pictures, whereas the discrete Wavelet transform (DWT) assesses the signal's agreement with the wavelets. In this work, the energy fusion rule is applied to all DWT and NSCT frequency coefficients at the primary level. Orientation and edge strength are preserved via a fusion rule in the sub-block of the spatial field. MRI and CT scans are used as inputs for NSCT and DWT, and these images are then merged individually in the NSCT and DWT domains. The combined DWT and NSCT results are combined once over by means of spatial domain ideas. Dual-level fusion architecture is employed to maintain and improve the visual eminence of the output picture. There are both subjective and objective assessments of the performance. All NSCT and DWT frequency constants are fused using the energy fusion rule in the first phase, and then the ESOP fusion instruction is used in the second stage.