Public Member Functions |
Public Attributes |
Static Public Attributes |
Protected Member Functions |
Static Protected Attributes |
List of all members
lsst.pipe.tasks.rgb2hips._high_order_hips.HighOrderHipsTask Class Reference
Inheritance diagram for lsst.pipe.tasks.rgb2hips._high_order_hips.HighOrderHipsTask:
Public Member Functions | |
| __init__ (self, **kwargs) | |
| Struct | run (self, Iterable[tuple[NDArray, SkyWcs, Box2I]] input_images, healpix_id) |
| None | runQuantum (self, QuantumContext butlerQC, InputQuantizedConnection inputRefs, OutputQuantizedConnection outputRefs) |
Public Attributes | |
| warper = Warper.fromConfig(self.config.warp) | |
| hips_base_path = ResourcePath(self.config.hips_base_uri, forceDirectory=True) | |
Static Public Attributes | |
| ConfigClass = HighOrderHipsTaskConfig | |
Protected Member Functions | |
| NDArray | _make_box_mask (self, tuple[int, int] shape, int patch_grow) |
| list[tuple[NDArray, SkyWcs, Box2I]] | _assemble_sub_region (self, dict[int, Iterable[tuple[DeferredDatasetHandle, SkyWcs, Box2I]]] tract_patch, int patch_grow) |
Static Protected Attributes | |
| str | _DefaultName = "highOrderHipsTask" |
Detailed Description
Pipeline task that generates high-order HealPix tiles from RGB images. Of Note; This task has special dispensation to write "out-of-tree" to a location not within the butler. DO NOT model other tasks on this one. This task takes in RGB images generated on a tract patch grid. It assembles them into a 4096 x 4096 image aligned with the wcs coordinates of hips order 8 pixels. This is then divided up into an 8x8 grid to produce 512x512 images at hips order 11. The images is then resampled using lanczos order 4 such that the image is half the size. The original image is then divided into a 4x4 grid to produce hips images at order 10. The process is repeated to produce hips images at order 9, and finally the image is resampled down to 512x512 and saved out at hips order 8. The order 8 image is resampled one more time to 256x256 and presisted by the butler for later consumption in the `LowOrderHipsTask`. The difference at producding wcs at order 8 and working up to 11, is tested to be less than 6 decimal places when converting ra dec to pixel coordinates, and even that is likely to be due to differences in warping kernels, and not an intrinsic error. Doing processing like this allows hips generation to be more effectively split across compute nodes.
Definition at line 127 of file _high_order_hips.py.
Constructor & Destructor Documentation
◆ __init__()
| lsst.pipe.tasks.rgb2hips._high_order_hips.HighOrderHipsTask.__init__ | ( | self, | |
| ** | kwargs ) |
Definition at line 157 of file _high_order_hips.py.
Member Function Documentation
◆ _assemble_sub_region()
|
protected |
Assemble all the patches in each tract into images.
This function takes in an input keyed by tract, with values
corresponding the patches in that tract that overlap the quatum's
healpix value. It assembles each of these into a single image such
that the return values is a list of images (and metadata) one element
for each input tract.
Parameters
----------
tract_patch : `dict` of `int` to `iterable` of `tuple` of
`DeferredDatasetHandle`, `SkyWcs` and `Box2I`
Input images and metadata organized into corresponding tracts.
patch_grow : `int`
Amount to grow patches by
Returns
-------
output_list : `list` of `tuple` of `NDArray` `SkyWcs` and `Box2I`
List of assembled images and metadata, one element for each tract
Definition at line 342 of file _high_order_hips.py.
◆ _make_box_mask()
|
protected |
Create a feathered box to use in blending images together.
This is used when mixing patches together into a larger contiguous region
such that overlaps are blended by a ramp function. This will be 50%
for each area at exactly halfway through the overlap, and 1/0 at the
extremes.
Parameters
----------
shape : `tuple` of `int`, `int`
Shape of the output weighting mask.
patch_grow : `int`
Amount to grow bounding boxes.
Returns
-------
mask : `np.ndarray`
The output weighting mask to use in blending, repeated along third
axis to use with RGB images.
Definition at line 295 of file _high_order_hips.py.
◆ run()
| Struct lsst.pipe.tasks.rgb2hips._high_order_hips.HighOrderHipsTask.run | ( | self, | |
| Iterable[tuple[NDArray, SkyWcs, Box2I]] | input_images, | ||
| healpix_id ) |
Main execution method for generating HealPix tiles.
Parameters
----------
input_images : Iterable[tuple[NDArray, SkyWcs, Box2I]]
Iterable of tuples containing image data, WCS, and bounding box information.
healpix_id : int
The HealPix order 8 ID to process.
Returns
-------
Struct
Output structure containing the processed HealPix order 8 tile.
This has been downsampled to 256x256 corresponding to a quarter of a healpix
order 7 image.
Definition at line 167 of file _high_order_hips.py.
◆ runQuantum()
| None lsst.pipe.tasks.rgb2hips._high_order_hips.HighOrderHipsTask.runQuantum | ( | self, | |
| QuantumContext | butlerQC, | ||
| InputQuantizedConnection | inputRefs, | ||
| OutputQuantizedConnection | outputRefs ) |
Definition at line 410 of file _high_order_hips.py.
Member Data Documentation
◆ _DefaultName
|
staticprotected |
Definition at line 152 of file _high_order_hips.py.
◆ ConfigClass
|
static |
Definition at line 153 of file _high_order_hips.py.
◆ hips_base_path
| lsst.pipe.tasks.rgb2hips._high_order_hips.HighOrderHipsTask.hips_base_path = ResourcePath(self.config.hips_base_uri, forceDirectory=True) |
Definition at line 162 of file _high_order_hips.py.
◆ warper
| lsst.pipe.tasks.rgb2hips._high_order_hips.HighOrderHipsTask.warper = Warper.fromConfig(self.config.warp) |
Definition at line 159 of file _high_order_hips.py.
The documentation for this class was generated from the following file:
- python/lsst/pipe/tasks/rgb2hips/_high_order_hips.py
Generated on Sun Mar 1 2026 02:17:47 for lsst.pipe.tasks by
1.13.2