lsst.synpipe.FakeSourceLib Namespace Reference

Classes
class	SkyMapIdContainer

Functions
def	cropFakeImage (fakeImage, expBBox)
def	addNoise (galImage, detector, rand_gen=None)

Function Documentation

addNoise()

def lsst.synpipe.FakeSourceLib.addNoise	(		galImage,
			detector,
			rand_gen = None
	)

adds noise to the the image and returns a variance plane
INPUT: image to add noise to
       detector where the image will be located, this sets the gain
NOTE: this assumes float type images and will break if given doubles
RETURN: a MaskedImageF with the image with additional noise and the
        variance plane
giving the variance due to the object

Definition at line 65 of file FakeSourceLib.py.

cropFakeImage()

def lsst.synpipe.FakeSourceLib.cropFakeImage	(		fakeImage,
			expBBox
	)

Crops the Fake image to fit inside the exposure BBox
Note that the bboxes need to have the correct offsets applied
Args:
    fakeImage: fake image object
    expBBox:   bounding box for CCD exposure (integer type, BBoxI)
               and with offsets applied

Returns:
    New cropped fake image

Definition at line 43 of file FakeSourceLib.py.