Full Changelog¶
2.0.0 (2019-09-02)¶
New Features¶
- Allow initialization of
ImageFileCollection
from a list of files with no location set. [#374, #661, #680] - Allow identification of FITS files in
ImageFileCollection
based on content of the files instead of file name extension. [#620, #680] - Add option to use regular expression matching when filtering items in
ImageFileCollection
. [#480, #595, #682] - Added an option to disregard negative values passed to
create_deviation
and assume the error is represented by the read noise [#688] - Add
filter
method toImageFileCollection
that creates a new collection by filtering based on header keywords. [#596, #690]
Other Changes and Additions¶
- Dropped support for Python 2.x and Astropy 1.x.
- Removed deprecated property
summary_info
ofImageFileCollection
. - Improved handling of large flags in the
bitfield
module. [#610, #611] - Improved the performance of several
ImageFileCollection
methods. [#599] - Added auto_logging configuration paramenter [#622, #90]
- Added support for .fz,.bz2, .Z and .zip file formats in
ImageFileCollection
. [#623, #644] - Modified weights function to also accept 1D array in
Combiner
. [#634, #670] - Added warning that
transform_image
does not apply the transformation to the WCS [#684] - When creating a new object in
wcs_transform
, WCS keywords in the header are removed so that they are only stored in the WCS object [#685] - Improved warning for negative values in the array passed to
create_deviation
[#688] - Removed support for initializing
ImageFileCollection
from a table instead of files. [#680] - More consistent typing of
ImageFileCollection.summary
when the collection is empty. [#601, #680]
Bug Fixes¶
- Function
median_combine
now correctly calculates the uncertainty for maskedCCDData
. [#608] - Function
combine
avoids keeping files open unnecessarily. [#629, #630] - Function
combine
more accurately estimates memory use when deciding how to chunk files. [#638, #642] - Raise
ValueError
error insubtract_dark
for when the errors have different shapes [#674, #677] - Fix problem with column dtypes when initializing
ImageFileCollection
from a list of file names. [#662, #680]
1.3.0 (2017-11-1)¶
New Features¶
- Add representation for ImageFileCollection. [#475, #515]
- Added ext parameter and property to ImageFileCollection to specify the FITS extension. [#463]
- Add keywords.deleter method to ImageFileCollection. [#474]
- Added
glob_include
andglob_exclude
parameter toImageFileCollection
. [#484] - Add
bitfield_to_boolean_mask
function to convert abitfield
to a boolean mask (following the numpy conventions). [#460] - Added
gain_corrected
option in ccd_process so that calibration files do not need to previously been gain corrected. [#491] - Add a new
wcs_relax
argument toCCDData.to_header()
that is passed through to theWCS
method of the same name to allow more flexible handing of headers with SIP distortion. [#501] combine
now acceptsnumpy.ndarray
as the inputimg_list
. [#493, #503]- Added
sum
option in method forcombime
. [#500, #508] - Add
norm_value
argument toflat_correct
that allows the normalization of the flat frame to be manually specified. [#584, #577]
Other Changes and Additions¶
- removed ability to set unit of CCDData to None. [#451]
- deprecated
summary_info
property ofImageFileCollection
now raises a deprecation warning. [#486] - Logging will include the abbreviation even if the
meta
attribute of the processedCCDData
isn’t afits.Header
. [#528] - The
CCDData
class and the functionsfits_ccddata_reader
andfits_ccddata_writer
will be imported fromastropy.nddata
if astropy >= 2.0 is installed (instead of the one defined inccdproc
). [#528] - Building the documentation requires astropy >= 2.0. [#528]
- When reading a
CCDData
from a file the WCS-related keywords are removed from the header. [#568] - The
info_file
argument forImageFileCollection
is now deprecated. [#585]
Bug Fixes¶
ImageFileCollection
now handles Headers with duplicated keywords (other thanCOMMENT
andHISTORY
) by ignoring all but the first. [#467]- The
ccd
method ofImageFileCollection
will raise anNotImplementedError
in case the parameteroverwrite=True
orclobber=True
is used instead of silently ignoring the parameter. [#527] - The
sort
method ofImageFileCollection
now requires an explicitly givenkeys
argument. [#534] - Fixed a problem with
CCDData.read
when the extension wasn’t given and the primary HDU contained nodata
but another HDU did. In that case the header were not correctly combined. [#541] - Suppress errors during WCS creation in CCDData.read(). [#552]
- The generator methods in
ImageFileCollection
now don’t leave open file handles in case the iterator wasn’t advanced or an exception was raised either inside the method itself or during the loop. [#553] - Allow non-string columns when filtering an
ImageFileCollection
with a string value. [#567]
1.2.0 (2016-12-13)¶
ccdproc has now the following additional dependency:
- scikit-image.
New Features¶
- Add an optional attribute named
filenames
toImageFileCollection
, so that users can pass a list of FITS files to the collection. [#374, #403] - Added
block_replicate
,block_reduce
andblock_average
functions. [#402] - Added
median_filter
function. [#420] combine
now takes an additionalcombine_uncertainty_function
argument which is passed asuncertainty_func
parameter toCombiner.median_combine
orCombiner.average_combine
. [#416]- Added
ccdmask
function. [#414, #432]
Other Changes and Additions¶
Bug Fixes¶
- The default dtype of the
combine
-result doesn’t depend on the dtype of the first CCDData anymore. This also corrects the memory consumption calculation. [#391, #392] ccd_process
now copies the meta of the input when subtracting the master bias. [#404]- Fixed
combine
withCCDData
objects usingStdDevUncertainty
as uncertainty. [#416, #424] ccds
generator fromImageFileCollection
now uses the full path to the file when callingfits_ccddata_reader
. [#421 #422]
1.1.0 (2016-08-01)¶
New Features¶
Other Changes and Additions¶
cosmicray_lacosmic
defaultsatlevel
changed from 65536 to 65535. [#347]- Auto-identify files with extension
fts
as FITS files. [#355, #364] - Raise more explicit exception if unit of uncalibrated image and master do
not match in
subtract_bias
orsubtract_dark
. [#361, #366] - Updated the
Combiner
class so that it could process images with >2 dimensions. [#340, #375]
1.0.1 (2016-03-15)¶
The 1.0.1 release was a release to fix some minor packaging issues.
1.0.0 (2016-03-15)¶
General¶
- ccdproc has now the following requirements:
- Python 2.7 or 3.4 or later.
- astropy 1.0 or later
- numpy 1.9 or later
- scipy
- astroscrappy
- reproject
New Features¶
- Add a WCS setter for
CCDData
. [#256] - Allow user to set the function used for uncertainty calculation in
average_combine
andmedian_combine
. [#258] - Add a new keyword to ImageFileCollection.files_filtered to return the full path to a file [#275]
- Added ccd_process for handling multiple steps. [#211]
- CCDData.write now writes multi-extension-FITS files. The mask and uncertainty
are saved as extensions if these attributes were set. The name of the
extensions can be altered with the parameters
hdu_mask
(default extension name'MASK'
) andhdu_uncertainty
(default'UNCERT'
). CCDData.read can read these files and has the same optional parameters. [#302]
Other Changes and Additions¶
- Issue warning if there are no FITS images in an
ImageFileCollection
. [#246] - The overscan_axis argument in subtract_overscan can now be set to None, to let subtract_overscan provide a best guess for the axis. [#263]
- Add support for wildcard and reversed FITS style slicing. [#265]
- When reading a FITS file with CCDData.read, if no data exists in the primary hdu, the resultant header object is a combination of the header information in the primary hdu and the first hdu with data. [#271]
- Changed cosmicray_lacosmic to use astroscrappy for cleaning cosmic rays. [#272]
- CCDData arithmetic with number/Quantity now preserves any existing WCS. [#278]
- Update astropy_helpers to 1.1.1. [#287]
- Drop support for Python 2.6. [#300]
- The
add_keyword
parameter now has a default ofTrue
, to be more explicit. [#310] - Return name of file instead of full path in
ImageFileCollection
generators. [#315]
Bug Fixes¶
- Adding/Subtracting a CCDData instance with a Quantity with a different unit produced wrong results. [#291]
- The uncertainty resulting when combining CCDData will be divided by the square root of the number of combined pixel [#309]
- Improve documentation for read/write methods on
CCDData
[#320] - Add correct path separator when returning full path from
ImageFileCollection.files_filtered
. [#325]
0.3.2 (never released)¶
There was no 0.3.2 release because of a packaging error.
0.3.0 (2015-03-17)¶
New Features¶
- When reading in a FITS file, the extension to be used can be specified. If it is not and there is no data in the primary extension, the first extension with data will be used.
- Set wcs attribute when reading from a FITS file that contains WCS keywords and write WCS keywords to header when converting to an HDU. [#195]
Other Changes and Additions¶
- Updated CCDData to use the new version of NDDATA in astropy v1.0. This breaks backward compatibility with earlier versions of astropy.
0.2.2 (2014-11-05)¶
New Features¶
- Add dtype argument to
ccdproc.Combiner
to help control memory use [#178]
0.2.1 (2014-09-09)¶
0.2 (2014-07-28)¶
- Initial release.