GeometricMeanFilter[image, r] filters image by replacing every value by the geometric mean of the values in its range r neighborhood. GeometricMeanFilter[data, r] applies ...

ImageDimensions[image] gives the pixel dimensions of the raster associated with an Image object image.

ImageQ[image] yields True if image has the form of a valid Image object, and False otherwise.

KuwaharaFilter[image, r] computes for each pixel p in image the variance of the values in the four (r + 1)*(r + 1) squares that have p as a corner, and replaces p with the ...

NotebookFileName[] gives the file name of the current evaluation notebook. NotebookFileName[nb] gives the file name for the notebook specified by nb.

Sharpen[image] gives a sharpened version of image.Sharpen[image, r] gives a version of image sharpened over pixel radius r.

EntropyFilter[image, r] filters image by replacing every value by the information entropy of the values in its range r neighborhood. EntropyFilter[data, r] applies entropy ...

RationalInterpolation[expr, {x, m, n}, {x_1, x_2, ..., x n + m + 1}] gives the rational interpolant to expr with numerator order m and denominator order n, where x_1, x_2, ...

IonStage is the ionization level of the element producing resonance absorption lines.

Here is an expression in full form. TreeForm prints out expressions to show their "tree" structure. You can think of any Mathematica expression as a tree. In the expression ...