The Spectral plot displays information on labeled data across all spectral bands. The horizontal axis shows wavelength in nm, the vertical axis the pixel value. For the sake of image interpretation it is recommended to use data converted into reflectance.


In perClass Mira, specific project types correct raw data into reflectance using white and dark reference scans. Working in reflectance makes models more robust regarding illumination changes.


The band widget under spectral plot shows individual spectral bands available in all images currently loaded in project. perClass Mira requires that all images use the same spectral bands/wavelength definition.