1.5

• PCA: optionally scale the data to unit variance (Std of 1) before performing PCA
• PCA: add a plot of the variance explained to the output if Plotly is installed
• PCA Biplot algorithm (requires Plotly)
• RasterWizard: Support setting band descriptions and accessing bands by band description.
• Bugfix: Check if layer is provided by gdal (i.e. local file, not wms etc.) and give feedback if otherwise (RasterWizard raises TypeError).
• Bugfix: In PCA, correctly apply nodata mask, also if nodata value was 0
• Bugfix: In Fill no data, get correct central value for signed integer (0)

1.4

RasterWizard: Raise TypeError if layer is not a raster layer

1.3

New RasterWizard for python users

1.2

Bugfix: PCA, calculate band mean without no data value

1.1

• Mask no data cells (no data pixels remain no data pixels)
• Fill no data cells to smooth the leaking into the neighborhood
• Add filter to calculate a no data mask
• Add filter to apply a no data mask (set corresponding cells to no data)
• Add filter to fill no data cells of all bands with either a value, the band mean or the minimum, maximum or the central value of the data type

1.0

• For large rasters: calculate in a moving window to avoid crashes
• Add setValue() to the custom widgets to get loading from history working
• Calculating band statistics after completion is optional now
• Get translation working (except for help strings)
• Add German translation
• New algorithms:
  • correlate with a given kernel (classic and FFT versions)
  • gradient (x,y axes and for pixels across bands)
  • difference (each pixel across bands)
  • keep only n components of PCA

0.3

• New: Principal Component Analysis (PCA)
• Advanced option to change the dtype of the output
• For filters where negative values are expected in the output, use float32 as default output dtype (instead of dtype of input layer) to avoid clipping and overflow errors
• Convolve: normalize with sum of absolute values of kernel as default, not simply the sum
• Unsharp mask: Avoid overflow error by calculating in float64
• Use sizes widget in more filters
• More load options for kernel/structure/footprint
• New origin widget and add origin as parameter to a couple of filters
• New set of filters for pixel statistics (std, mean, min ... for all bands of individual pixels)

0.2

• Catch exception if SciPy is not installed and offer to install it automatically (with pip)
• Improved user interface with custom widgets, making it more intuitive and allowing for far better parameters (see breaking changes if you already used version 0.1 in a script or model).
• Calculate and write band statistics (min, max, mean, std) into the metadata of the output file; enables QGIS to render correctly with min/max stretching
• New filters:
  • unsharp mask
  • rank filter
  • uniform filter (a.k.a. mean filter, box filter)
  • estimate local variance
  • estimate local standard deviation
  • range filter
  • fourier gaussian filter
  • fourier ellipsoid filter
  • fourier uniform filter
  • Wiener filter
  • FFT convolve
• Breaking changes to the parameters:
  • FOOTPRINTBOOL has been removed, if a footprint is given it is always used.
  • STRUCTURE always takes the actual structure as string, not an int (was index of combobox, the combobox has been replaced by the load button). CUSTOMSTRUCTURE has been removed.
  • Convolve: ORIGIN has been removed. (An improved version is on the todo list)

0.1

First release