def make_image_1():
image = scaled_array.ScaledSquarePixelArray(array=10.0 * np.ones((4, 4)),
pixel_scale=6.0)
psf = im.PSF(array=11.0 * np.ones((3, 3)),
pixel_scale=6.0,
renormalize=False)
noise_map = im.NoiseMap(array=12.0 * np.ones((4, 4)), pixel_scale=6.0)
background_noise_map = im.NoiseMap(array=13.0 * np.ones((4, 4)),
pixel_scale=6.0)
poisson_noise_map = im.PoissonNoiseMap(array=14.0 * np.ones((4, 4)),
pixel_scale=6.0)
exposure_time_map = im.ExposureTimeMap(array=15.0 * np.ones((4, 4)),
pixel_scale=6.0)
background_sky_map = scaled_array.ScaledSquarePixelArray(array=16.0 *
np.ones((4, 4)),
pixel_scale=6.0)
return im.CCDData(image=image,
pixel_scale=6.0,
psf=psf,
noise_map=noise_map,
background_noise_map=background_noise_map,
poisson_noise_map=poisson_noise_map,
exposure_time_map=exposure_time_map,
background_sky_map=background_sky_map)
def make_ccd():
image = scaled_array.ScaledSquarePixelArray(array=np.ones((4, 4)), pixel_scale=3.0)
psf = ccd.PSF(array=np.ones((3, 3)), pixel_scale=3.0, renormalize=False)
noise_map = ccd.NoiseMap(array=2.0 * np.ones((4, 4)), pixel_scale=3.0)
background_noise_map = ccd.NoiseMap(array=3.0 * np.ones((4, 4)), pixel_scale=3.0)
poisson_noise_map = ccd.PoissonNoiseMap(array=4.0 * np.ones((4, 4)), pixel_scale=3.0)
exposure_time_map = ccd.ExposureTimeMap(array=5.0 * np.ones((4, 4)), pixel_scale=3.0)
background_sky_map = scaled_array.ScaledSquarePixelArray(array=6.0 * np.ones((4, 4)), pixel_scale=3.0)
return ccd.CCDData(image=image, pixel_scale=3.0, psf=psf, noise_map=noise_map,
background_noise_map=background_noise_map, poisson_noise_map=poisson_noise_map,
exposure_time_map=exposure_time_map, background_sky_map=background_sky_map)
def make_lens_image():
ccd_data = ccd.CCDData(np.array(np.zeros(shape)),
pixel_scale=1.0,
psf=ccd.PSF(np.ones((3, 3)), pixel_scale=1.0),
noise_map=ccd.NoiseMap(np.ones(shape),
pixel_scale=1.0))
mask = msk.Mask.circular(shape=shape, pixel_scale=1, radius_arcsec=3.0)
return li.LensData(ccd_data=ccd_data, mask=mask)
def make_image():
image = scaled_array.ScaledSquarePixelArray(array=np.ones((3, 3)),
pixel_scale=1.0)
noise_map = im.NoiseMap(array=2.0 * np.ones((3, 3)), pixel_scale=1.0)
psf = im.PSF(array=3.0 * np.ones((1, 1)), pixel_scale=1.0)
return im.CCDData(image=image,
pixel_scale=1.0,
noise_map=noise_map,
psf=psf)
def make_ccd():
image = scaled_array.ScaledSquarePixelArray(array=np.ones((3, 3)),
pixel_scale=1.0)
noise_map = im.NoiseMap(array=2.0 * np.ones((3, 3)), pixel_scale=1.0)
psf = im.PSF(array=3.0 * np.ones((1, 1)), pixel_scale=1.0)
return im.CCDData(image=image,
pixel_scale=1.0,
noise_map=noise_map,
psf=psf,
exposure_time_map=2.0 * np.ones((3, 3)),
background_sky_map=3.0 * np.ones((3, 3)))
def make_ccd_data():
pixel_scale = 1.0
image = scaled_array.ScaledSquarePixelArray(array=np.array(
np.zeros(shape)),
pixel_scale=pixel_scale)
psf = ccd.PSF(array=np.ones((3, 3)), pixel_scale=pixel_scale)
noise_map = ccd.NoiseMap(np.ones(shape), pixel_scale=1.0)
return ccd.CCDData(image=image,
pixel_scale=pixel_scale,
psf=psf,
noise_map=noise_map)