Create an elliptical Region of Interest (ROI)¶
plantcv.roi.ellipse(x, y, r1, r2, angle, img)
returns roi_contour, roi_hierarchy
- Parameters:
- x - The x-coordinate of the center of the ellipse.
- y - The y-coordinate of the center of the ellipse.
- r1 - The radius of the major axis.
- r2 - The radius of the minor axis.
- angle - The angle of rotation of the major axis.
- img - An RGB or grayscale image to plot the ROI on in debug mode.
- Context:
- Used to define a region of interest in the image.
Reference Image
from plantcv import plantcv as pcv
roi_contour, roi_hierarchy = pcv.roi.ellipse(x=200, y=200, r1=100, r2=80, angle=0, img=rgb_img)