Source Detection Algorithms

Detection.SourceFinder

Abstract super type for source detection algorithms used with extract_sources.

PeakMesh(box_size=(3, 3), nsigma=3.0)

Detect sources by finding peaks above a threshold in grids across the image.

This creates a pixel-wise threshold for sources by calculating error * nsigma when used with extract_sources. The peaks are found by searching the image in boxes of size box_size. If the maximum value in that box is greater than the threshold set above, the point is extracted.