Plot Histogram

This is a plotting method used to examine the distribution of signal within an image.

plot_hist(img, 'hist_name')

returns bins,hist, hist plot

  • Parameters:
    • img = the original image for analysis.
    • name = the name of the output plot
  • Context:
    • Examine the distribution of the signal, this help you select a value for binary thresholding.
  • Example use:

Grayscale image


import plantcv as pcv

# Examine signal distribution within an image
# prints out an image histogram of signal within image
bins,hist=pcv.plot_hist(img, 'histogram')

Histogram of signal intensity