60 lines
1.0 KiB
Python
60 lines
1.0 KiB
Python
import cv2
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import sys
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import numpy as np
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import imutils as im
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(major_ver, minor_ver, subminor_ver) = cv2.__version__.split('.')
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print(cv2.__version__)
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def to_rect(bbox):
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top_left = (bbox[0], bbox[1])
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bottom_right = (top_left[0] + bbox[2], top_left[1] + bbox[3])
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return top_left, bottom_right
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def bbox_add_position(bbox, bbox_add):
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res = (bbox[0] + bbox_add[0], bbox[1] + bbox_add[1], bbox[2], bbox[3])
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return res
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def bbox_round(src):
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res = ()
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for s in src:
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res += (int(round(s)),)
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return res
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def bbox_center(bbox):
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x = bbox[0] + bbox[2]/2
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y = bbox[1] + bbox[3]/2
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return x, y
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def bbox_extend(bbox: cv2.typing.Rect, factor: float = 0):
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we2 = bbox[2]*factor/2
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he2 = bbox[3]*factor/2
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return bbox_round((bbox[0]-we2, bbox[1]-he2, bbox[2]+2*we2, bbox[3]+2*he2))
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def image_crop(src, bbox: cv2.typing.Rect):
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bb = bbox_round(bbox)
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x = bb[0]
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y = bb[1]
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w = bb[2]
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h = bb[3]
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dst = src[y:y+h, x:x+w]
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return dst
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def process_image_bbox(src):
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# convert to gray
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gray = cv2.cvtColor(src, cv2.COLOR_BGR2GRAY)
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return gray
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