==========   Mathematics menu =======
  * [[macros|Macros...]]
  * [[crop|Crop]]
  * [[invert|Invert]]
  * [[average|Average]]
  * [[sharpen|Sharpen]]
  * [[wiener_filter|Wiener filter]]
  * [[median|Median filter]]
  * [[median_х|Median filter Х]]
  * [[median_cross|Median filter cross]]
  * [[adjust_scale|Adjust scale]]
  * [[flip|Transpose image]]
  * [[rotate|Rotate image]]
  * [[fitting|Fitting]]
  * [[spline|Spline fitting]]
  * [[smooth_area|Smooth area]]
  * [[arithmetics|Arifmetics]]
    * [[Add]]
    * [[substract]]
    * [[advanced_operation|]]
  * [[dilate|Dilate]]
  * [[erode|Erode]]
  * [[tip_modeling|Tip modeling]]
  * [[roughness_analysis|Roughness analysis]]
  * [[threshold|Threshold]]
  * [[height_from_interferience_figure|Height from interferience figure]]
  * [[mass_ceneter|Find center of mass]]
  * [[Grain_analysis|Grain analysis]]
  * [[adjust_scan|Adjust scan by lines]]
  * [[dewarping|Dewarping]]
  * [[separate_grains|Separate grains]]
  * [[analyse_grains|Analyse grains]]
  * [[find_objects|Find objects]]
  * [[detect_edges|Detect edges]]
  * [[linear_filtering|Linear filtering]]
    * [[gradient|Gradient]]
    * [[laplase|Laplase]]
    * [[gauss|Gauss]]
  * [[correlation|Correlation]]
    * [[cross_correlation|Cross correlation]]
    * [[self_correlation|Self correlation]]
    * [[find_structure_element|Find structure element]]
    * [[image_stitching|Image stitching]]
  * [[persistent_length|Persistence length]]