Jurnal Info Sains : Informatika dan Sains
Vol. 15 No. 01 (2025): Informatika dan Sains , 2025

Median Filter Optimization and Sharpening Techniques to Improve Digital Image Quality

Riko Prananda Prayugo (Unknown)
Lailan Sofinah Harahap (Unknown)



Article Info

Publish Date
02 Jul 2025

Abstract

The quality of digital images often degrade due to noise disturbances, especially impulsive noise such as salt and pepper. The aim of this study is to optimize the use of the median filter as a denoising technique and to combine it with a sharpening method to enhance the sharpness and clarity of image structures. The proposed approach involves applying an adaptive median filter reduce noise while preserving edge details, followed by a convolution kernel based sharpening technique to further emphasize visual features. The performance of the method is evaluated by compare the Peak Signal-to-Noise Ratio (PSNR) and the Structural Similarity Index Measure (SSIM) between the processed images and the original images. The experimental results demonstrated that this combined approach significantly improve both PSNR and SSIM values after filtering and sharpening, indicating that the synergy between median filtering and sharpening effectively restore the visual quality of digital images. These findings can serve as a foundation for the development of adaptive image preprocessing systems to handle impulsive noise.

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Journal Info

Abbrev

InfoSains

Publisher

Subject

Computer Science & IT

Description

urnal Info Sains : Informatika dan Sains (JIS) discusses science in the field of Informatics and Science, as a forum for expressing results both conceptually and technically related to informatics science. The main topics developed include: Cryptography Steganography Artificial Intelligence ...