cv2-rgb
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56 lines
1.9 KiB
56 lines
1.9 KiB
# encoding=utf-8
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from collections import namedtuple
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import cv2
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import requests
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import numpy as np
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from towhee.types import Image
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from towhee.operator import PyOperator, SharedType
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from towhee import register
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from towhee.utils import ndarray_utils
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from towhee.utils.log import engine_log
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@register(
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input_schema=[(str, (-1,))],
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output_schema=[(Image, (-1, -1, 3))]
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)
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class ImageDecoder(PyOperator):
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def __init__(self):
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super().__init__()
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def _load_from_remote(image_url: str) -> np.ndarray:
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try:
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r = requests.get(image_url, timeout=(20, 20))
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if r.status_code // 100 != 2:
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engine_log.error('Download image from %s failed, error msg: %s, request code: %s ' % (image_url,
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r.text,
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r.status_code))
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return None
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arr = np.asarray(bytearray(r.content), dtype=np.uint8)
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return cv2.imdecode(arr, -1)
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except Exception as e:
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engine_log.error('Download image from %s failed, error msg: %s' % (image_url, str(e)))
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return False
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def _load_from_local(image_path: str) -> np.ndarray:
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return cv2.imread(image_path)
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def __call__(self, image_path: str):
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if image_path.startswith('http'):
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bgr_cv_image = ImageDecoder._load_from_remote(image_path)
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else:
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bgr_cv_image = ImageDecoder._load_from_local(image_path)
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if bgr_cv_image is None:
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err = 'Read image %s failed' % image_path
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engine_log.error(err)
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raise RuntimeError(err)
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rgb_cv_image = cv2.cvtColor(bgr_cv_image, cv2.COLOR_BGR2RGB)
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return ndarray_utils.from_ndarray(rgb_cv_image, 'RGB')
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@property
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def shared_type(self):
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return SharedType.Shareable
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