Computer system for increasing the local contrast of railway transport images

S. V. Balovsyak; O. V. Derevyanchuk; H. O. Kravchenko; O. P. Kroitor; V. V. Tomash

doi:10.1117/12.2615761

20 December 2021 Computer system for increasing the local contrast of railway transport images

S. V. Balovsyak, O. V. Derevyanchuk, H. O. Kravchenko, O. P. Kroitor, V. V. Tomash

Proceedings Volume 12126, Fifteenth International Conference on Correlation Optics; 121261E (2021) https://doi.org/10.1117/12.2615761
Event: Fifteenth International Conference on Correlation Optics, 2021, Chernivtsi, Ukraine

Abstract

This article describes a computer system for increasing the local contrast of railway images obtained with digital video cameras. The local contrast of the images increases within the rectangular windows, for each of which the minimum and maximum brightness values are determined. Based on such extreme brightness values, the lower and upper envelope brightness of the image are calculated. By smoothing of the envelopes the artefacts that appear in the image after increasing the local contrast based on its envelopes are significantly reduced. The images are read to the control computer from USB video cameras. The software implementation of image processing is created in Python.

Citation Download Citation

S. V. Balovsyak, O. V. Derevyanchuk, H. O. Kravchenko, O. P. Kroitor, and V. V. Tomash "Computer system for increasing the local contrast of railway transport images", Proc. SPIE 12126, Fifteenth International Conference on Correlation Optics, 121261E (20 December 2021); https://doi.org/10.1117/12.2615761

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