plotHist: Color histogram of binned image

In colordistance: Distance Metrics for Image Color Similarity

Description

Plots a color histogram from a dataframe as returned by getImageHist, getHistList, or extractClusters. Bars are colored according to the color of the bin.

Usage

plotHist(
  histogram,
  pausing = TRUE,
  color.space = "rgb",
  ref.white,
  from = "sRGB",
  main = "default",
  ...
)

Arguments

histogram	A single dataframe or a list of dataframes as returned by getLabHist, getLabHistList, or extractClusters. First three columns must be color coordinates and fourth column must be cluster size.
pausing	Logical. Pause and wait for keystroke before plotting the next histogram?
color.space	The color space ("rgb", "hsv", or "lab") in which to plot cluster histogram.
ref.white	The reference white passed to convertColorSpace; must be specified if using CIE Lab space. See convertColorSpace.
from	Display color space of image if clustering in CIE Lab space, probably either "sRGB" or "Apple RGB", depending on your computer.
main	Title for plot. If "default", the name of the cluster histogram is used.
...	Optional arguments passed to the barplot function.

Examples

color_df <- as.data.frame(matrix(rep(seq(0, 1, length.out=3), 3), nrow=3,
ncol=3))

color_df$Pct <- c(0.2, 0.5, 0.3)

colordistance::plotHist(color_df, main="Example plot")

colordistance documentation built on March 21, 2021, 1:06 a.m.