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import attr |
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from .image import ImageFactory |
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from .disk_operations import Disk |
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@attr.s |
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class ImageManager: |
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preprocessing_pipeline = attr.ib() |
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image_factory: ImageFactory = \ |
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attr.ib(init=False, default=attr.Factory(lambda: ImageFactory(Disk.load_image))) |
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images_compatible: bool = attr.ib(init=False, default=False) |
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_known_types = attr.ib(init=False, default={'content', 'style'}) |
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def __attrs_post_init__(self): |
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for image_type in self._known_types: |
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setattr(self, f'_{image_type}_image', None) |
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def load_from_disk(self, file_path: str, image_type: str): |
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if image_type not in self._known_types: |
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raise ValueError(f'Expected type of image to be one of {self._known_types}; found {image_type}') |
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# dynamically call the appropriate content/style setter method |
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setattr(self, f'{image_type}_image', |
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self.image_factory.from_disk(file_path, self.preprocessing_pipeline |
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)) |
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def _set_image(self, image, image_type: str): |
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# dynamically set appropriate content/style attribute |
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setattr(self, f'_{image_type}_image', image) |
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if not (self._content_image is None or self._style_image is None): |
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if self._content_image.matrix.shape == self._style_image.matrix.shape: |
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self.images_compatible = True |
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return |
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self.images_compatible = False |
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@property |
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def content_image(self): |
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return self._content_image |
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@content_image.setter |
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def content_image(self, image): |
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self._set_image(image, 'content') |
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@property |
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def style_image(self): |
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return self._style_image |
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@style_image.setter |
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def style_image(self, image): |
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self._set_image(image, 'style') |
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boromir674 /
neural-style-transfer
