52 lines
1.7 KiB
Python
52 lines
1.7 KiB
Python
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import os
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import cv2
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import numpy as np
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from ..annotator.file_utils import save_annot
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def check_result(image_root, annot_root):
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if os.path.exists(annot_root):
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# check the number of images and keypoints
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nimg = len(os.listdir(image_root))
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nann = len(os.listdir(annot_root))
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print('Check {} == {}'.format(nimg, nann))
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if nimg == nann:
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return True
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return False
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def create_annot_file(annotname, imgname):
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assert os.path.exists(imgname), imgname
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img = cv2.imread(imgname)
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height, width = img.shape[0], img.shape[1]
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imgnamesep = imgname.split(os.sep)
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filename = os.sep.join(imgnamesep[imgnamesep.index('images'):])
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annot = {
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'filename':filename,
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'height':height,
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'width':width,
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'annots': [],
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'isKeyframe': False
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}
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save_annot(annotname, annot)
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return annot
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def bbox_from_keypoints(keypoints, rescale=1.2, detection_thresh=0.05, MIN_PIXEL=5):
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"""Get center and scale for bounding box from openpose detections."""
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valid = keypoints[:,-1] > detection_thresh
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if valid.sum() < 3:
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return [0, 0, 100, 100, 0]
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valid_keypoints = keypoints[valid][:,:-1]
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center = (valid_keypoints.max(axis=0) + valid_keypoints.min(axis=0))/2
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bbox_size = valid_keypoints.max(axis=0) - valid_keypoints.min(axis=0)
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# adjust bounding box tightness
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if bbox_size[0] < MIN_PIXEL or bbox_size[1] < MIN_PIXEL:
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return [0, 0, 100, 100, 0]
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bbox_size = bbox_size * rescale
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bbox = [
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center[0] - bbox_size[0]/2,
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center[1] - bbox_size[1]/2,
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center[0] + bbox_size[0]/2,
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center[1] + bbox_size[1]/2,
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keypoints[valid, 2].mean()
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]
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bbox = np.array(bbox).tolist()
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return bbox
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