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https://github.com/esheldon/shredx
Run the shredder image deblender on images processed by Source Extractor
https://github.com/esheldon/shredx
Last synced: 3 days ago
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Run the shredder image deblender on images processed by Source Extractor
- Host: GitHub
- URL: https://github.com/esheldon/shredx
- Owner: esheldon
- License: other
- Created: 2019-09-14T09:55:52.000Z (about 5 years ago)
- Default Branch: master
- Last Pushed: 2022-11-23T21:34:06.000Z (almost 2 years ago)
- Last Synced: 2024-10-19T21:28:42.870Z (19 days ago)
- Language: Python
- Size: 96.7 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# shredx
Run the shredder image deblender on images processed by Source Extractor
## Examples
An example using the library
```python
import shredx
# to process all fof groups at once
loader = shredx.Loader(
image_files=image_files,
psf_files=psf_files,
seg_file=seg_file,
cat_file=cat_file,
)
# a minimal config, leaving everything else at the defaults
shred_config = {
'shredding': {
'psf_ngauss': 5,
}
}
results = shredx.shred_fofs(loader=loader, shredconf=shred_config)
# to deblend and see some plots as you go
shredx.shred_fofs(
loader=loader,
shredconf=shred_config
show=True,
)
```
Example using the script. First generate fof groups using fofx
```bash
seg=seg/DES0109+0500_r4969p01_r_segmap.fits
output=fofs/run11-DES0109+0500-fofs.fits
shredx-make-fofs --seg $seg --output $output
```
Then run the shredder using shredx
```bash
config=run11.yaml
seg=seg/DES0109+0500_r4969p01_r_segmap.fits
cat=cat/DES0109+0500_r4969p01_r_cat.fits
fofs=fofs/run11-DES0109+0500-fofs.fits
# we need to make this idmap as we have done for the meds maker
# ids=ids/run11-DES0109+0500-idmap.fits
images="coadd/DES0109+0500_r4969p01_g.fits.fz coadd/DES0109+0500_r4969p01_r.fits.fz coadd/DES0109+0500_r4969p01_i.fits.fz coadd/DES0109+0500_r4969p01_z.fits.fz"
psfs="psf/DES0109+0500_r4969p01_g_psfcat.psf psf/DES0109+0500_r4969p01_r_psfcat.psf psf/DES0109+0500_r4969p01_i_psfcat.psf psf/DES0109+0500_r4969p01_z_psfcat.psf"
start=12800
end=12809
seed=407393828
outfile=output/test.fits
# add this argument when id map is made
# --ids $ids \
shredx \
--start $start \
--end $end \
--config $config \
--seed $seed \
--seg $seg \
--cat $cat \
--fofs $fofs \
--images $images \
--psfs $psfs \
--outfile $outfile
```
## Requirements
- numpy
- numba
- shredder
- ngmix
- fitsio
- esutil
- psfex
- fofx (for friends of friends group finding)
- sxdes (optional for tests)
- sep (used by sxdes)
## TODO
- implement saving plots rather than showing