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Primarily Gwyddion is intended to help you analyze height fields obtained by means of scanning probe microscopy techniques.
This techniques are: AFM, STM, SNOM / NSOM, MFM. However Gwyddion can also be generally used for any other image and height field analysis.
Gwyddion aims to provide multiplatform modular program for 2D data analysis that could be easily extended by modules and plug-ins.
Moreover, the status of free software enables to provide source codes to developers and users, which makes the further program improvement easier.
Here are some key features of "Gwyddion":
· visualization: false color representation with different types of mapping
· shaded, logarithmical, gradient- and edge-detected, local contrast representation, Canny lines
· OpenGL 3D data display: false color or m aterial representation
· easily editable color maps and OpenGL materials
· basic operations: rotation, flipping, inversion, data arithmetic, crop, resampling
· leveling: plane leveling, profiles leveling, three-point leveling, facet leveling, polynomial background removal, leveling along user-defined lines
· value reading, distance and angle measurement
· profiles: profile extraction, measuring distances in profile graph, profile export
· filtering: mean, median, conservative denoise, Kuwahara, minimum, maximum, checker pattern removal
· general convolution filter with user-defined kernel
· statistical functions: Ra, RMS, projected and surface area, inclination, histograms, 1D and 2D correlation functions, PSDF, 1D and 2D angular distributions, Minkowski functionals, facet orientation analysis
· statistical quantities calculated from area under arbitrary mask
· row/c olumn statistical quantities plots
· ISO roughness parameter evaluation
· grains: threshold marking and unmarking, watershed marking
· grain statistics: overall and distributions of size, height, area, volume, boundary length, bounding dimensions
· intergral transforms: 2D FFT, 2D continuous wavelet transform (CWT), 2D discrete wavelet transform (DWT), wavelet anisotropy detection
· fractal dimension analysis
· data correction: spot remove, outlier marking, scar marking, several line correction methods (median, modus)
· removal of data under arbitrary mask using Laplace or fractal interpolation
· automatic xy plane rotation correction
· arbitrary polynomial deformation on xy plane
· 1D and 2D FFT filtering
· fast scan axis drift correction
· mask editting: adding, removing or intersecting with rectangles and ellipses, inversion, extraction, expa nsion, shrinking
· simple graph function fitting, critical dimension determination
· force-distance curve fitting
· axes scale callibration
· merging and immersion of images
· tip modelling, blind estimation, dilation and erosion
What's New in This Release: [ read full changelog ]
Application:
· Translations updated: Czech, French, Russian.
Libraries:
· libgwyprocess: New function to calculate grain-wise rms.
· libgwymodule: gwy_file_get_data_info() sets its arguments to NULL if no file info is found, fixing a possible crash if newly generated data are saved.
· libgwyapp: Recent file names are compared canonicalized, fixing repetition of the same file in document history on MS Windows.
Modul es:
· Pixmap: Scalebar ticks and label can be enabled/disabled.
· Grain statistics: Displays total projected boundary length.
· Median line correction: Masking is supported.
· TIA SER: Spectral data import is supported.
· Statistical quantities: New quantity was added: grain-wise rms.
· Omicron: Files created by SPIP are recognised and loaded.
· Nanoscope: Support for old files without @2:Z scale was improved.
· Object synthesis: A bug causing Critical warning/crash during the generation of non-square data was fixed.
· Seiko: The guesswork involved in loading of non-square files was so...
Via: Gwyddion 2.29-1
