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- import os
- from PIL import Image
- from ..config.cnn_config import *
- _scenes_names_prefix = '_scenes_names'
- _scenes_indices_prefix = '_scenes_indices'
- # store all variables from current module context
- context_vars = vars()
- def get_renderer_scenes_indices(renderer_name):
- if renderer_name not in renderer_choices:
- raise ValueError("Unknown renderer name")
- if renderer_name == 'all':
- return scenes_indices
- else:
- return context_vars[renderer_name + _scenes_indices_prefix]
- def get_renderer_scenes_names(renderer_name):
- if renderer_name not in renderer_choices:
- raise ValueError("Unknown renderer name")
- if renderer_name == 'all':
- return scenes_names
- else:
- return context_vars[renderer_name + _scenes_names_prefix]
- def augmented_data_image(block, output_folder, prefix_image_name):
- rotations = [0, 90, 180, 270]
- img_flip_labels = ['original', 'horizontal', 'vertical', 'both']
- horizontal_img = block.transpose(Image.FLIP_LEFT_RIGHT)
- vertical_img = block.transpose(Image.FLIP_TOP_BOTTOM)
- both_img = block.transpose(Image.TRANSPOSE)
- flip_images = [block, horizontal_img, vertical_img, both_img]
- # rotate and flip image to increase dataset size
- for id, flip in enumerate(flip_images):
- for rotation in rotations:
- rotated_output_img = flip.rotate(rotation)
- output_reconstructed_filename = prefix_image_name + post_image_name_separator
- output_reconstructed_filename = output_reconstructed_filename + img_flip_labels[id] + '_' + str(rotation) + '.png'
- output_reconstructed_path = os.path.join(output_folder, output_reconstructed_filename)
- if not os.path.exists(output_reconstructed_path):
- rotated_output_img.save(output_reconstructed_path)
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