Issues with applying unmixing algorithms to Level-2A product
The problem I'm facing is not related to the EnMAP Box but rather pertains to hyperspectral unmixing. I obtained a Level-2A product from https://eoweb.dlr.de/egp/main, but it doesn't contain bottom-of-atmosphere (BOA) reflectance values ranging from 0 to 1. Instead, it has very large values in both positive and negative directions, causing issues when applying hyperspectral unmixing algorithms like VCA. Are there additional preprocessing steps that should be undertaken? I apologize if this is not the appropriate forum for such queries, and I would appreciate any guidance on where to address this issue.