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Here are the general steps for image preprocessing before computing band indices:

After these preprocessing steps, the band indices can be computed using mathematical formulas that combine the spectral information from different bands to extract specific features or properties of interest, such as vegetation health or water quality.

Before computing band indices, it is essential to preprocess the image to ensure accurate and consistent results. Here are some general steps for image preprocessing:

Preprocessing steps, such as compression, aim to prepare data and facilitate processing activities. Information supply chains in the big data environment that transform data from its source format into a variety of consumer formats for analysis and use are also covered in preprocessing activities, such as format conversion. Depending on the state of the data, processing can be classified as stream processing (eg, filtering, annotation) or batch processing (eg, cleaning, combining, and iteration). For further processing, information extraction, data integration, in-memory processing, and data assimilation activities can be used, depending on system requirements. Suhel Sen

Which software is considered to be best for image preprocessing ERDAS or ArcGIS? Please suggest