Onboard Real Time Image Processing System for Water Bodies Extraction

摘要

In this article, hardware and software tools is proposed to process image in satellite image processing systems so that the parameters can be calculated and make image viewable according to user requirements. This is a basic approach to solve real-time problems for water bodies like oceans. The extraction of Water bodies is difficult because of mountain and building shadow. There are three water indices for water bodies extraction namely, Normalized Difference Water Index (NDWI), Modified Normalized Difference Water Index (MNDWI) and Automated Water Extraction Index (AWEI) that extract water in real-time with onboard image processing system using FPGA. By selecting any input image there are given three options of NDWI, MNDWI and AWEI. When any one option is selected then the output is obtained according to selected indices. The proposed system of onboard real-time image processing using hardware software combination reduces total time to procure satellite image and extraction of water bodies.