I am currently attempting to study features in the overscan regions of images taken by the BOT during the integration and testing of the LSST Camera.
For “raw” exposures i can extract these regions using the bounding boxes returned by the methods:
exp = butler.get('raw', dataId) ccd = exp.getDetector() amp = ccd overscan_image = exp.maskedImage[amp.getRawVerticalOverscanBBox()]
However, a calibrated image returned by the
IsrTask() appears to be trimmed of these regions.
Is there a method for getting the parallel and serial overscan regions of calibrated images returned by