5. Aperture Photometry

Command: wisp-measure-aperture-photometry

Important Parameters

• apertures

• subpixmap: if processing images collected with a color camera

Description

For each source, wisp-measure-aperture-photometry sums-up the flux in the image within a series of concentric circles centered on the projected source position. In order to properly handle the inevitable pixels that are partiallly within an aperture, knowledge of the distribution of light accross these pixels as well as the sub-pixel sensitivy map is required.