ccdproc is a python package for reducing astronomical images (mainly targeting optical and near-infrared). This tag should be used for questions about the classes and functions contained in ccdproc. For more general questions consider using the python, numpy or astropy tags.
From the ccdproc documentation:
ccdproc is is an affiliated package for the AstroPy package for basic data reductions of CCD images. The ccdproc package provides many of the necessary tools for processing of CCD images built on a framework to provide error propagation and bad pixel tracking throughout the reduction process.
