Volumetric Analysis using Graphic Double Integration


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Documentation for package ‘gdi’ version 1.2.2

Help Pages

cscorr Measure and analyze cross-sectional geometry
fdetect Tool to help determine which threshold value and method to use with measuresil() or cscorr(). The function analyzes all pixels along the edges of the image to determine the background colour, to help with deciding on appropriate settings and avoid errors introduced by inappropriate settings
gdi Estimate volume using Graphic Double Integration.
imghist Simple histogram analysis for all colour values in an input image. Can be used to help assess whether a chosen threshold value is appropriate for differentiating the silhouette from the background, or for general.
measuresil Take pixel-by-pixel measurements of a silhouette in jpeg or png format for use with the gdi function.
sellipse Estimate area of a superellipse. Assistant function for gdi.
sellipse.coo calculate coordinates for plotting a superellipse for visualizing body cross-sections