Package: dataArtist
dataArtist-…scientific data processing made easy.Download for Windows 7-10AboutdataArtistis a graphical program for interactive data analysis and
processing. It is currently specialized image processing tasks in
combination with electroluminescence imaging of photovoltaic devices.It is written in Python (2.7) and is released under open source.dataArtistis written to be platform independent. It is known to run
under Windows 7-10 and Ubuntu Linux 14.10 (soon).Please cite *dataArtist* as follows:K.G. Bedrich et al., “Electroluminescence Imaging of PV Devices:
Camera Calibration and Image Correction”, Proc. 43rd IEEE Photovoltaic Specialists Conference, Portland, 2016.ManualsUSER manualDEVELOPERS manualOnline TutorialsGeneral usage, camera calibration and image correction are explained
in youtube screencast sessions, seeSupported file typesData is imported through drag n’drop.ImagesCommon used (TIF, BMP, PNG, JPG, CSV, TXT, MAT)RAW, if data type and image shape are knownNumpy arraysPlotsCSV, TXT, numpy arraysInstallationa) Portable versiondataArtistruns out of the box. No installation needed (currently
Windows only). See sectionReleases.b) Installation into existing Python installation using pipAfter installing Python2.7 and ensuring that ‘pip’ is a recognised command in the command shell (Windows: CMD.exe).
you need to install the following packages BEFORE installing dataArtist:PyQt4OpenCV2.4OPTIONAL: RabbitMQ (for inter-program communication)Please refer to theUSER manualfor more information.Once these packages are installed, open a command shell and type:pip install dataArtistNow start dataArtist from the command shell:dataArtistTo launch dataArtist into the system tray type:dataArtist-sTo open a dataArtist session directly type:dataArtist-o/path/to/my/session.daScripting, Automation, ModdingdataArtistcomes with a built-in python shell. Data can be examplary
accessed thoughd1.l3(display 1, data layer 3) and tools
e.g. throughd.tools['Axes'].click()(in current display execute
tool ‘Axes’).dataArtistallows adding own tools, displays and importers, for
examples, see dataArtist/modding.Main dependenciesPackageDescriptionpyqtgraph_karlScientific Graphics and GUI Library based on Qt (Fork)imgProcessorGeneral propose image processing libaryappBaseBase packages for apps, based on QtfancyWidgetsA collection of fancy widgets, based on QtfancyToolsA collection of useful not-GUI toolsExample: Electroluminescence imagingCamera calibrationFor camera calibration all needed images are dropped intodataArtistand the matching tool is executed. The calibration results are
hereinafter saved to a calibration file. The determination of the
point spread function is exemplary shown in the following figure:dataArtist screenshot - toolbar ‘calibration’.a: Best focus
determination;b: noise-level-function measurement;c: Dark
current mapping;d: Flat field mapping;e: PSF estimation
(selected):f: lens distortion measurementImage correctionThe correction of EL image is shown in the following figure.
Perspective correction (red box) can be done either using the outline
of the PV device (automatically detected or manually defined) or using
a reference image.dataArtist screenshot -a: tool ‘CalibrationFile’;b: tool
‘CorrectCamera’;c: tool ‘PerspectiveCorrection’green line: Camera correction;red line: Perspective
correction