RGB to HSV¶

Convert image from RGB color space to HSV color space and split the channels.

plantcv.rgb2gray_hsv(rgb_img, channel)

returns split image (h, s, or v channel)

• Parameters:

  • rgb_img - RGB image data
  • channel - Split 'h' (hue), 's' (saturation), or 'v' (value) channel

• Context:

  • Used to help differentiate plant and background
• Example use:
  • Use In VIS Tutorial
  • Use In PSII Tutorial

Original RGB image

from plantcv import plantcv as pcv

# Set global debug behavior to None (default), "print" (to file), 
# or "plot" (Jupyter Notebooks or X11)
pcv.params.debug = "plot"

# image converted from RGB to HSV, channels are then split. 
# Hue ('h') channel is output
h_channel = pcv.rgb2gray_hsv(rgb_img=rgb_img, channel='h')

Hue channel image

# Saturation ('s') channel is output    
s_channel = pcv.rgb2gray_hsv(rgb_img=rgb_img, channel='s')

Saturation channel image

# Value ('v') channel is output
v_channel = pcv.rgb2gray_hsv(rgb_img=rgb_img, channel='v')

Value channel image

Source Code: Here