Thirty-seven modules in Version 6.0 are accessible as Python binary extension ("pip install MontagePy") and can be used from within Jupyter notebooks. The notebooks available here show the use of each Montage function, and there are in addition two that illustrate end-to-end processing to create mosaics.
with catalog and image overlays, created with mViewer.
The mViewer notebook shows how to create this image.
(click for a better view)
This document set (notebooks and HTML pages) is a available through GitHub at
https://github.com/Caltech-IPAC/MontageNotebooks
If you just want to view the notebook pages without downloading, go to
http://montage.ipac.caltech.edu/MontageNotebooks
The data needed to actually run the notebooks comes in two files:
http://montage.ipac.caltech.edu/data/montage_datacubes.tar.gz
http://montage.ipac.caltech.edu/data/montage_data.tar.gz
The first is 3 GByte uncompressed and contains the data for the datacube examples (because of the third dimension, datacubes tend to be large files). If you are not interested in datacubes you can save time and space by not downloading this file. The second is 1 GByte uncompressed and has the data for all the other notebooks.
Both of these tarballs should be taken apart in the same directories as the downloaded notebook .ipynb files.
| Visualization | |
|---|---|
| mViewer | General FITS image viewer (single or multi-band, with overlays). |
| mHistogram | Generate a histogram for an image, suitable for use in the Viewer. |
| End-to-End Processing Tutorials | |
| Mosaic | Overview example of the end-to-end process of making a mosaic of archive data. |
| Mosaic_oneshot | The above example without the explanatory text. |
| Creating and Managing Header Files | |
|---|---|
| mHdr | Create a template FITS header (TAN projection) from just a location and size. |
| mGetHdr | Pull the header from a FITS file (in a form suitable for any text editor. |
| mPutHdr | Replace the header for a FITS file using an template text header file. |
| mMakeHdr | Make a template FITS header as a bounding box around a table of sky locations (or image metadata). |
| Reprojecting, Co-registering, and Coadding Two-Dimensional Images | |
| mProject | Reproject a single image to another projection/coordinate system (any projection, flux conserving). |
| mProjectPP | Reproject a single image to another projection/coordinate system (tangent plane projections only, flux conserving). |
| mProjectQL | Reproject a single image to another projection/coordinate system (any projection, not strictly flux conserving). |
| mTANHdr | Create a TAN projection with focal-plane distortions (for better reprojection performance) for small-area images with odd projections. |
| mProjExec | Reproject a set of images to a common projection/coordinate system. |
| mAdd | Coadd a set of images with the same projection together into a mosaic. |
| Background Fitting and Rectification | |
| mOverlaps | Determine the set of overlaps for a set of images. |
| mDiff | Generate the difference between two images. |
| mFitplane | Fit a plane to a single image (ignoring larger flux excursions). |
| mDiffExec | Generate difference images a list of image pairs. |
| mFitExec | Fit planes to a set of images (usually difference images). |
| mDiffFitExec | Determine plane fits to a list of image pairs (take each image, then fit it and clean as you go). |
| mBgModel | Model a set of image overlap differences to determine the best background to remove from the original image to make backgrounds match. |
| mBackground | Subtract a plane from a single image. |
| mBgExec | Subtract planes from a set of images, usually to get the backgrounds to match. |
| Image Utilities | |
| mBestImage | Find the "best" image from a set for a specific location. |
| mExamine | Gather statistics for an image file (or a region within an image file). |
| mFixNaN | Fix some of the more obvious problems with blank pixels in an image file. |
| mMakeImg | Create an artificial FITS image based on source catalog data and/or simple backgrounds. |
| mShrink | Shrink (or expand) an image by an arbitrary factor. |
| mSubimage | Cut a rectangular area out of an image file. |
| Finding and Retrieving Images | |
| mArchiveList | Query remote archives for list of downloadable images. |
| mCoverageCheck | Reduce list of images to just those overlapping a region. |
| mArchiveGet | Retrieve a single archive image. |
| mArchiveExec | Retrieve a list of remote archive images (using mArchiveGet). |
| mImgtbl | Generate a metadata table (with an emphasis on sky coverage) for a set of images (usually a single subdirectory but can run recursively). |
| Creating and Managing Mosaics of Data Cubes | |
| mProjectCube | Reproject a datacube. Spatial (sky) coordinates should be the first two axes. |
| mAddCube | Coadd a set of datacubes into a single cube. |
| mShrinkCube | Shrink a datacube (any factor spatially; integer factors in the other dimension(s). |
| mSubCube | Cut a subcube out of a datacube. |
| mTranspose | Transpose the axes of a datacube, usually to get the spatial dimensions into the right order for reprojection. |