geninhu commited on
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2323db2
1 Parent(s): 7c98460

Upload utils.py

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  1. utils.py +76 -0
utils.py ADDED
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+ import torch
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+ import torch.nn as nn
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+ from enum import Enum
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+
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+ import base64
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+ import json
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+ from io import BytesIO
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+ from PIL import Image
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+ import requests
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+ import re
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+
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+ class ImageType(Enum):
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+ REAL_UP_L = 0
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+ REAL_UP_R = 1
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+ REAL_DOWN_R = 2
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+ REAL_DOWN_L = 3
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+ FAKE = 4
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+
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+
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+ def crop_image_part(image: torch.Tensor,
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+ part: ImageType) -> torch.Tensor:
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+ size = image.shape[2] // 2
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+
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+ if part == ImageType.REAL_UP_L:
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+ return image[:, :, :size, :size]
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+
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+ elif part == ImageType.REAL_UP_R:
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+ return image[:, :, :size, size:]
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+
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+ elif part == ImageType.REAL_DOWN_L:
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+ return image[:, :, size:, :size]
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+
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+ elif part == ImageType.REAL_DOWN_R:
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+ return image[:, :, size:, size:]
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+
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+ else:
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+ raise ValueError('invalid part')
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+
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+
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+ def init_weights(module: nn.Module):
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+ if isinstance(module, nn.Conv2d):
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+ torch.nn.init.normal_(module.weight, 0.0, 0.02)
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+
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+ if isinstance(module, nn.BatchNorm2d):
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+ torch.nn.init.normal_(module.weight, 1.0, 0.02)
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+ module.bias.data.fill_(0)
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+
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+ def load_image_from_local(image_path, image_resize=None):
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+ image = Image.open(image_path)
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+
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+ if isinstance(image_resize, tuple):
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+ image = image.resize(image_resize)
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+ return image
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+
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+ def load_image_from_url(image_url, rgba_mode=False, image_resize=None, default_image=None):
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+ try:
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+ image = Image.open(requests.get(image_url, stream=True).raw)
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+
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+ if rgba_mode:
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+ image = image.convert("RGBA")
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+
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+ if isinstance(image_resize, tuple):
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+ image = image.resize(image_resize)
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+
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+ except Exception as e:
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+ image = None
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+ if default_image:
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+ image = load_image_from_local(default_image, image_resize=image_resize)
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+
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+ return image
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+
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+ def image_to_base64(image_array):
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+ buffered = BytesIO()
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+ image_array.save(buffered, format="PNG")
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+ image_b64 = base64.b64encode(buffered.getvalue()).decode("utf-8")
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+ return f"data:image/png;base64, {image_b64}"