huedominance

Provides Hue Range Dominance Index (HRDI) algorithm — a new vegetation index proposed for PhenoCam plant phenology image analysis.

For comparison with Green Chromatic Coordinate (GCC), a gcc function is available, too.

To install:

pip3 install huedominance

To use from command line (example):

python3 -m huedominance 100 170 green_leaves.jpg

To use in your Python code:

from huedominance.hrdi import hrdi
from huedominance.gcc import gcc
from PIL import Image

image = Image.open('/path/to/your/image')

green_leaves_hrdi, hrdi_image = hrdi(image, 100, 170, make_illustration = True)
green_leaves_gcc, gcc_image = gcc(image, make_illustration = True)

hrdi_image.save('/path/to/hrdi/illustrative/signal/image', 'JPEG')
gcc_image.save('/path/to/gcc/illustrative/signal/image', 'JPEG')

red_leaves_hrdi, _ = hrdi(image, -30, 10)

Please refer to Python help on function hrdi for details about the algorithm.