Description Usage Arguments Details Value Examples
Uses the Excessive Green (ExG) methodology to create a grayscale image of crop rows. The image is first broken down into a dataframe and each pixel is tested then put onto a varying intensity according to the ExG.
The image to have ExG applied to it
The function first reads the image as a data frame with x and y columns for the pixel postion. Reading the data frame as "wide = 'c'" also creates a column for red, green, and blue intensity. Each color column is then normalized and the normal values of the colors are put into the ExG equation, creating a new ExG column for each pixel. The values of the ExG are then treated as a 1D array and transformed into a format for the EBImage package commands.
An image formatted for EBImage commands.
grayscale <- make_ExG(color_image)
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