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import glob
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import random
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import os
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import cv2
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import numpy as np
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import tqdm
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from matplotlib import pyplot as plt
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import albumentations as A
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def visualize(image, mask, original_image=None, original_mask=None):
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fontsize = 18
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if original_image is None and original_mask is None:
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f, ax = plt.subplots(2, 1, figsize=(8, 8))
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ax[0].imshow(image)
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ax[1].imshow(mask)
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else:
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f, ax = plt.subplots(2, 2, figsize=(8, 8))
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ax[0, 0].imshow(original_image)
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ax[0, 0].set_title('Original image', fontsize=fontsize)
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ax[1, 0].imshow(original_mask)
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ax[1, 0].set_title('Original mask', fontsize=fontsize)
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ax[0, 1].imshow(image)
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ax[0, 1].set_title('Transformed image', fontsize=fontsize)
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ax[1, 1].imshow(mask)
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ax[1, 1].set_title('Transformed mask', fontsize=fontsize)
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plt.show()
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image = cv2.imread('./mri_train_2d/image/mr_train_1011_image_100.png',0)
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mask = cv2.imread('./mri_train_2d/label/mr_train_1011_image_100.png',0)
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original_height, original_width = image.shape[:2]
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f, ax = plt.subplots(2, 7, figsize=(32,8),squeeze=True)
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plt.axis('off')
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image=A.resize(image,256,256)
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mask=A.resize(mask,256,256)
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ax[0,0].imshow(image,cmap='gray',)
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ax[0,0].axis('off')
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ax[1,0].imshow(mask,cmap='CMRmap')
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ax[1,0].axis('off')
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plt.gcf().tight_layout()
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aug=A.VerticalFlip()
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augmented = aug(image=image, mask=mask)
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image_heavy = augmented['image']
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mask_heavy = augmented['mask']
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ax[0,1].imshow(image_heavy,cmap='gray')
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ax[0,1].axis('off')
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ax[1,1].imshow(mask_heavy,cmap='CMRmap')
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ax[1,1].axis('off')
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aug=A.RandomRotate90()
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augmented = aug(image=image, mask=mask)
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image_heavy = augmented['image']
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mask_heavy = augmented['mask']
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ax[0,2].imshow(image_heavy,cmap='gray')
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ax[0,2].axis('off')
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ax[1,2].imshow(mask_heavy,cmap='CMRmap')
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ax[1,2].axis('off')
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aug=A.RandomSizedCrop(min_max_height=(100,200), height=256,
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width=256)
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augmented = aug(image=image, mask=mask)
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image_heavy = augmented['image']
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mask_heavy = augmented['mask']
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ax[0,3].imshow(image_heavy,cmap='gray')
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ax[0,3].axis('off')
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ax[1,3].imshow(mask_heavy,cmap='CMRmap')
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ax[1,3].axis('off')
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aug=A.ElasticTransform(alpha=120, sigma=120 * 0.05,
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alpha_affine=120 * 0.03)
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augmented = aug(image=image, mask=mask)
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image_heavy = augmented['image']
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mask_heavy = augmented['mask']
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ax[0,4].imshow(image_heavy,cmap='gray')
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ax[0,4].axis('off')
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ax[1,4].imshow(mask_heavy,cmap='CMRmap')
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ax[1,4].axis('off')
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aug=A.GridDistortion()
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augmented = aug(image=image, mask=mask)
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image_heavy = augmented['image']
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mask_heavy = augmented['mask']
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ax[0,5].imshow(image_heavy,cmap='gray')
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ax[0,5].axis('off')
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ax[1,5].imshow(mask_heavy,cmap='CMRmap')
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ax[1,5].axis('off')
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aug=A.OpticalDistortion(distort_limit=2, shift_limit=0.5)
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augmented = aug(image=image, mask=mask)
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image_heavy = augmented['image']
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mask_heavy = augmented['mask']
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ax[0,6].imshow(image_heavy,cmap='gray')
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ax[0,6].axis('off')
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ax[1,6].imshow(mask_heavy,cmap='CMRmap')
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ax[1,6].axis('off')
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plt.tight_layout()
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plt.subplots_adjust(wspace=0,hspace=0)
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plt.show()
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