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VOL. 12, ISSUE 6 (2025)
The Use of MAX-MIN Filter to Increase Contrast to Noise Ratio (CNR) in Spars Projection Tomography Images
Authors
Catur Edi Widodo
Abstract
The quality of tomography image reconstruction
results is largely determined by the number of projections. If the number of
projections is less than the optimum value, artifacts will occur that reduce
image quality. One of the image quality parameters is the contrast to noise ratio
(CNR). In this study we propose a way to increase CNR using the MAX-MIN filter.
This filter works by replacing the intensity of each pixel with the maximum
value of the surrounding pixel intensity. After that the same work is repeated
but by replacing the pixel intensity with the minimum intensity of the
surrounding pixels. The results of the study on the digital Shepp-Logan phantom
show that the MAX-MIN Filter can increase the CNR value in all images
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Pages:107-111
How to cite this article:
Catur Edi Widodo "The Use of MAX-MIN Filter to Increase Contrast to Noise Ratio (CNR) in Spars Projection Tomography Images". International Journal of Multidisciplinary Research and Development, Vol 12, Issue 6, 2025, Pages 107-111
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