def _toMask(objs, coco):
# modify segmentation by reference
for obj in objs:
t = coco.imgs[obj['image_id']]
for region in obj['regions']:
if type(region['segmentation']) == list:
# format is xyxy, convert to RLE
region['segmentation'] = mask.frPyObjects(
[region['segmentation']], t['height'], t['width'])
if len(region['segmentation']) == 1:
region['segmentation'] = region['segmentation'][0]
else:
# an object can have multiple polygon regions
# merge them into one RLE mask
region['segmentation'] = mask.merge(
obj['segmentation'])
if 'area' not in region:
region['area'] = mask.area(
[region['segmentation']])[0]
elif type(region['segmentation']) == dict and type(
region['segmentation']['counts']) == list:
region['segmentation'] = mask.frPyObjects(
[region['segmentation']], t['height'],
t['width'])[0]
elif type(region['segmentation']) == dict and \
type(region['segmentation']['counts'] == unicode or type(region['segmentation']['counts']) == str):
# format is already RLE, do nothing
if 'area' not in region:
region['area'] = mask.area(
[region['segmentation']])[0]
else:
raise Exception('segmentation format not supported.')
def annToRLE(self, ann, height, width):
"""
Convert annotation which can be polygons, uncompressed RLE to RLE.
:return: binary mask (numpy 2D array)
"""
segm = ann['segmentation']
if isinstance(segm, list):
# polygon -- a single object might consist of multiple parts
# we merge all parts into one mask rle code
rles = maskUtils.frPyObjects(segm, height, width)
rle = maskUtils.merge(rles)
elif isinstance(segm['counts'], list):
# uncompressed RLE
rle = maskUtils.frPyObjects(segm, height, width)
else:
# rle
rle = ann['segmentation']
return rle
def annToMask(segm, h, w):
"""
Convert annotation which can be polygons, uncompressed RLE to RLE.
:return: binary mask (numpy 2D array)
"""
if type(segm) == list:
# polygon -- a single object might consist of multiple parts
# we merge all parts into one mask rle code
rles = maskUtils.frPyObjects(segm, h, w)
rle = maskUtils.merge(rles)
elif type(segm['counts']) == list:
# uncompressed RLE
rle = maskUtils.frPyObjects(segm, h, w)
else:
# rle
rle = segm
return maskUtils.decode(rle)
def annToRLE(self, ann):
"""
Convert annotation which can be polygons, uncompressed RLE to RLE.
:return: binary mask (numpy 2D array)
"""
t = self.imgs[ann['image_id']]
h, w = t['height'], t['width']
segm = ann['segmentation']
if type(segm) == list:
# polygon -- a single object might consist of multiple parts
# we merge all parts into one mask rle code
rles = maskUtils.frPyObjects(segm, h, w)
rle = maskUtils.merge(rles)
elif type(segm['counts']) == list:
# uncompressed RLE
rle = maskUtils.frPyObjects(segm, h, w)
else:
# rle
rle = ann['segmentation']
return rle
def _toMask(objs, coco):
# modify segmentation by reference
for obj in objs:
t = coco.imgs[obj['image_id']]
if type(obj['segmentation']) == list:
if type(obj['segmentation'][0]) == dict:
print 'debug'
obj['segmentation'] = mask.frPyObjects(obj['segmentation'],t['height'],t['width'])
if len(obj['segmentation']) == 1:
obj['segmentation'] = obj['segmentation'][0]
else:
# an object can have multiple polygon regions
# merge them into one RLE mask
obj['segmentation'] = mask.merge(obj['segmentation'])
elif type(obj['segmentation']) == dict and type(obj['segmentation']['counts']) == list:
obj['segmentation'] = mask.frPyObjects([obj['segmentation']],t['height'],t['width'])[0]
elif type(obj['segmentation']) == dict and \
type(obj['segmentation']['counts'] == unicode or type(obj['segmentation']['counts']) == str):
pass
else:
raise Exception('segmentation format not supported.')
def _toMask(objs, coco):
# modify segmentation by reference
for obj in objs:
t = coco.imgs[obj['image_id']]
if type(obj['segmentation']) == list:
if type(obj['segmentation'][0]) == dict:
print('debug')
obj['segmentation'] = mask.frPyObjects(obj['segmentation'],t['height'],t['width'])
if len(obj['segmentation']) == 1:
obj['segmentation'] = obj['segmentation'][0]
else:
# an object can have multiple polygon regions
# merge them into one RLE mask
obj['segmentation'] = mask.merge(obj['segmentation'])
elif type(obj['segmentation']) == dict and type(obj['segmentation']['counts']) == list:
obj['segmentation'] = mask.frPyObjects([obj['segmentation']],t['height'],t['width'])[0]
elif type(obj['segmentation']) == dict and \
type(obj['segmentation']['counts'] == unicode or type(obj['segmentation']['counts']) == str):
pass
else:
raise Exception('segmentation format not supported.')
def _toMask(objs, coco):
# modify segmentation by reference
for obj in objs:
t = coco.imgs[obj['image_id']]
for region in obj['regions']:
if type(region['segmentation']) == list:
# format is xyxy, convert to RLE
region['segmentation'] = mask.frPyObjects(
[region['segmentation']], t['height'], t['width'])
region['segmentation'][0]['counts'] = region[
'segmentation'][0]['counts'].decode('utf-8')
if len(region['segmentation']) == 1:
region['segmentation'] = region['segmentation'][0]
else:
# an object can have multiple polygon regions
# merge them into one RLE mask
region['segmentation'] = mask.merge(
obj['segmentation'])
if 'area' not in region:
region['area'] = mask.area(
[region['segmentation']])[0]
elif type(region['segmentation']) == dict and type(
region['segmentation']['counts']) == list:
region['segmentation'] = mask.frPyObjects(
[region['segmentation']], t['height'],
t['width'])[0]
region['segmentation']['counts'] = region[
'segmentation']['counts'].decode('utf-8')
elif type(region['segmentation']) == dict and \
type(region['segmentation']['counts']) == str or type(region['segmentation']['counts']) == bytes:
# Python 3 renamed the unicode type to str, the old str type has been replaced by bytes.
# format is already RLE, do nothing
if 'area' not in region:
region['area'] = mask.area(
[region['segmentation']])[0]
else:
print('???')
raise Exception('segmentation format not supported.')
