High-dynamic-range (HDR) imaging applications are increasing rapidly due to their advantages to increase the color quality of the pictures that can be accessed now even from the cellphones. Combining HDR with multispectral images could give us the opportunity to not only have great color information but also to analyze different compositions of materials. However, the use of these techniques is still limited due to portability and costs. In this work, we present linear and nonlinear methods to generate HDR images using a novel single capture multispectral camera based on nanowires sensors. The results presented here show an error reduction in color estimation compared to previous methods.