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| import math | |
| import numpy as np | |
| def get_prompt_templates(): | |
| prompt_templates = [ | |
| '{}.', | |
| 'a photo of a {}.', | |
| 'a bad photo of a {}.', | |
| 'a photo of many {}.', | |
| 'a sculpture of a {}.', | |
| 'a photo of the hard to see {}.', | |
| 'a low resolution photo of the {}.', | |
| 'a rendering of a {}.', | |
| 'graffiti of a {}.', | |
| 'a bad photo of the {}.', | |
| 'a cropped photo of the {}.', | |
| 'a tattoo of a {}.', | |
| 'the embroidered {}.', | |
| 'a photo of a hard to see {}.', | |
| 'a bright photo of a {}.', | |
| 'a photo of a clean {}.', | |
| 'a photo of a dirty {}.', | |
| 'a dark photo of the {}.', | |
| 'a drawing of a {}.', | |
| 'a photo of my {}.', | |
| 'the plastic {}.', | |
| 'a photo of the cool {}.', | |
| 'a close-up photo of a {}.', | |
| 'a black and white photo of the {}.', | |
| 'a painting of the {}.', | |
| 'a painting of a {}.', | |
| 'a pixelated photo of the {}.', | |
| 'a sculpture of the {}.', | |
| 'a bright photo of the {}.', | |
| 'a cropped photo of a {}.', | |
| 'a plastic {}.', | |
| 'a photo of the dirty {}.', | |
| 'a jpeg corrupted photo of a {}.', | |
| 'a blurry photo of the {}.', | |
| 'a photo of the {}.', | |
| 'a good photo of the {}.', | |
| 'a rendering of the {}.', | |
| 'a {} in a video game.', | |
| 'a photo of one {}.', | |
| 'a doodle of a {}.', | |
| 'a close-up photo of the {}.', | |
| 'the origami {}.', | |
| 'the {} in a video game.', | |
| 'a sketch of a {}.', | |
| 'a doodle of the {}.', | |
| 'a origami {}.', | |
| 'a low resolution photo of a {}.', | |
| 'the toy {}.', | |
| 'a rendition of the {}.', | |
| 'a photo of the clean {}.', | |
| 'a photo of a large {}.', | |
| 'a rendition of a {}.', | |
| 'a photo of a nice {}.', | |
| 'a photo of a weird {}.', | |
| 'a blurry photo of a {}.', | |
| 'a cartoon {}.', | |
| 'art of a {}.', | |
| 'a sketch of the {}.', | |
| 'a embroidered {}.', | |
| 'a pixelated photo of a {}.', | |
| 'itap of the {}.', | |
| 'a jpeg corrupted photo of the {}.', | |
| 'a good photo of a {}.', | |
| 'a plushie {}.', | |
| 'a photo of the nice {}.', | |
| 'a photo of the small {}.', | |
| 'a photo of the weird {}.', | |
| 'the cartoon {}.', | |
| 'art of the {}.', | |
| 'a drawing of the {}.', | |
| 'a photo of the large {}.', | |
| 'a black and white photo of a {}.', | |
| 'the plushie {}.', | |
| 'a dark photo of a {}.', | |
| 'itap of a {}.', | |
| 'graffiti of the {}.', | |
| 'a toy {}.', | |
| 'itap of my {}.', | |
| 'a photo of a cool {}.', | |
| 'a photo of a small {}.', | |
| 'a tattoo of the {}.', | |
| ] | |
| return prompt_templates | |
| def prompt_engineering(classnames, topk=1, suffix='.'): | |
| prompt_templates = get_prompt_templates() | |
| temp_idx = np.random.randint(min(len(prompt_templates), topk)) | |
| if isinstance(classnames, list): | |
| classname = random.choice(classnames) | |
| else: | |
| classname = classnames | |
| return prompt_templates[temp_idx].replace('.', suffix).format(classname.replace(',', '').replace('+', ' ')) | |
| class AverageMeter(object): | |
| """Computes and stores the average and current value.""" | |
| def __init__(self): | |
| self.reset() | |
| def reset(self): | |
| self.val = 0 | |
| self.avg = 0 | |
| self.sum = 0 | |
| self.count = 0 | |
| def update(self, val, n=1, decay=0): | |
| self.val = val | |
| if decay: | |
| alpha = math.exp(-n / decay) # exponential decay over 100 updates | |
| self.sum = alpha * self.sum + (1 - alpha) * val * n | |
| self.count = alpha * self.count + (1 - alpha) * n | |
| else: | |
| self.sum += val * n | |
| self.count += n | |
| self.avg = self.sum / self.count | |