Image Subtract¶
Obtain a image of the pixelwise input values within two image files. This is a wrapper for the OpenCV function subtract.
image_subtract(img, img2, device, debug=False)
returns device, subtracted image
- Parameters:
- img - image to be analyzed
- img2 - image to subtract
- device - Counter for image processing steps
- debug- Default value is False, if True, masked intermediate image will be printed
- Context:
- Get features that are different between images
- Example use:
Original grayscale image (image 1)
Image to be subtracted (image 2)
import plantcv as pcv
# Subtract image from another image.
device, subtracted_img = pcv.image_subtract(img, img2, device, debug=True)
Subtraction of image 2 from image 1