mirror of
https://github.com/wassname/sloth.git
synced 2026-06-28 16:14:24 +08:00
Martin Baeuml
112 lines
3.7 KiB
Python
112 lines
3.7 KiB
Python
import os
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import glob
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class AnnotationContainer:
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def __init__(self):
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self.clear()
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def filename(self):
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return self.filename_
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def clear(self):
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self.annotations_ = []
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self.filename_ = None
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def load(self, filename):
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self.loadRectFormat(filename)
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def loadRectFormat(self, filename):
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self.annotations_ = []
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self.filename_ = filename
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filename_helper = {}
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try:
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f = open(filename)
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basedir = ""
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for line in f:
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s = line.split()
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image_fname = s[0]
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if basedir == "":
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basedir = os.path.dirname(image_fname)
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else:
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assert basedir == os.path.dirname(image_fname)
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num_rects = int(s[1])
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assert num_rects == 0 or num_rects == 1
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if image_fname in filename_helper:
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rects = filename_helper[image_fname]['annotations']
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else:
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rects = []
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for i in range(0, 4*num_rects, 4):
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rects.append({
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'type': 'rect',
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'x': s[i+2],
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'y': s[i+3],
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'width': s[i+4],
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'height': s[i+5]
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})
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if len(s) > i+6:
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rects[-1]['id'] = s[i+6]
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if image_fname not in filename_helper:
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annotation = {
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'type': 'image',
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'filename': image_fname,
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'annotations': rects
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}
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self.annotations_.append(annotation)
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filename_helper[image_fname] = annotation
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except Exception as e:
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self.annotations_ = []
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raise e
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basedir1 = basedir
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basedir = os.path.join(os.path.dirname(filename), basedir)
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images = glob.glob(os.path.join(basedir, "*.png"))
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for fname in images:
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fname = os.path.join(basedir1, os.path.basename(fname))
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if fname not in filename_helper:
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print fname, "not in filename_helper"
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annotation = {
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'type': 'image',
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'filename': fname,
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'annotations': []
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}
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self.annotations_.append(annotation)
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def save(self, filename):
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self.saveRectFormat(filename)
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def saveRectFormat(self, filename):
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f = open(filename, "w")
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for file in self.annotations_:
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if file['type'] == 'image':
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rect_anns = [ann for ann in file['annotations'] if ann['type'] == 'rect']
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#f.write("%s %d", file['filename'], len(rect_anns))
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for ann in rect_anns:
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f.write('%s 1 %s %s %s %s %s\n' % (file['filename'], str(ann['x']), str(ann['y']), str(ann['width']), str(ann['height']), str(ann.get('id', ""))))
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if len(rect_anns) == 0:
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f.write('%s 0\n' % (file['filename']))
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self.filename_ = filename
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def asDict(self):
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return self.annotations_
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def numFiles(self):
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return len(self.annotations_)
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def numAnnotations(self):
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if self.annotations_ is None:
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return 0
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num = 0
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for file in self.annotations_:
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if file['type'] == 'image':
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num += len(file['annotations'])
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elif file['type'] == video:
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for frame in file['frames']:
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num += len(frame['annotations'])
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return num
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