| Issue |
E3S Web Conf.
Volume 149, 2020
Regional Problems of Earth Remote Sensing (RPERS 2019)
|
|
|---|---|---|
| Article Number | 02010 | |
| Number of page(s) | 5 | |
| Section | Models and Methods of Remote Sensing Data Processing | |
| DOI | https://doi.org/10.1051/e3sconf/202014902010 | |
| Published online | 05 February 2020 | |
Application of two-dimensional fast Fourier transform algorithm, analog of the Cooley-Tukey algorithm, for 4k fixed format digital image of satellite data in frequency domain processing
Siberian Federal University, Institute of Space and Information Technology, Svobodny prospect 79, Krasnoyarsk, 660041, Russian Federation
* Corresponding author: mvnoskov@yandex.ru
Currently, digital images in the format Full HD (1920 * 1080 pixels) and 4K (4096 * 3072) are widespread. This article will consider the option of processing a similar image in the frequency domain. As an example, take a snapshot of the earth's surface. The discrete Fourier transform will be computed using a two-dimensional analogue of the Cooley-Tukey algorithm and in a standard way by rows and columns. Let us compare the required number of operations and the results of a numerical experiment. Consider the examples of image filtering.
© The Authors, published by EDP Sciences 2020
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