Journal of Information Processing Systems

Korea Information Processing Society (한국정보처리학회)
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A Versatile Medical Image Enhancement Algorithm Based on Wavelet Transform

  • Sharma, Renu (Dept. of Electronics and Communication Engineering, Jaypee Institute of Information and Technology) ;
  • Jain, Madhu (Dept. of Electronics and Communication Engineering, Jaypee Institute of Information and Technology)
  • Received : 2019.11.21
  • Accepted : 2020.10.19
  • Published : 2021.12.31
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Abstract

This paper proposed a versatile algorithm based on a dual-tree complex wavelet transform for intensifying the visual aspect of medical images. First, the decomposition of the input image into a high sub-band and low-sub-band image is done. Further, to improve the resolution of the resulting image, the high sub-band image is interpolated using Lanczos interpolation. Also, contrast enhancement is performed by singular value decomposition (SVD). Finally, the image reconstruction is achieved by using an inverse wavelet transform. Then, the Gaussian filter will improve the visual quality of the image. We have collected images from the hospital and the internet for quantitative and qualitative analysis. These images act as a reference image for comparing the effectiveness of the proposed algorithm with the existing state-of-the-art. We have divided the proposed algorithm into several stages: preprocessing, contrast enhancement, resolution enhancement, and visual quality enhancement. Both analyses show the proposed algorithm's effectiveness compared to existing methods.

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References

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