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augmentTestdata.py
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augmentTestdata.py
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import cv2
import argparse
import sys
import os
from auxilary.utils import createDir
from natsort import natsorted
def arg_init():
parser = argparse.ArgumentParser()
parser.add_argument('--img_dir', type=str, default='none', help='Path to the experiment directory.')
return parser.parse_args()
def crop_image(image_path, output_folder, counter, crop_size):
img = cv2.imread(image_path)
label = cv2.imread(image_path.replace(".png", "_label.png"))
height, width = img.shape[:2]
# Calculate crop dimensions
crop_width, crop_height = crop_size
left = (width - crop_width) // 2
top = (height - crop_height) // 2
right = (width + crop_width) // 2
bottom = (height + crop_height) // 2
# Center crop
center_crop_img = img[top:bottom, left:right]
cv2.imwrite(f'{output_folder}{counter}.png', center_crop_img)
center_crop_label = label[top:bottom, left:right]
cv2.imwrite(f'{output_folder}{counter}_label.png', center_crop_label)
counter += 1
# Top-left crop
top_left_crop_img = img[0:crop_height, 0:crop_width]
cv2.imwrite(f'{output_folder}{counter}.png', top_left_crop_img)
top_left_crop_label = label[0:crop_height, 0:crop_width]
cv2.imwrite(f'{output_folder}{counter}_label.png', top_left_crop_label)
counter += 1
# Top-right crop
top_right_crop_img = img[0:crop_height, width-crop_width:width]
cv2.imwrite(f'{output_folder}{counter}.png', top_right_crop_img)
top_right_crop_label = label[0:crop_height, width-crop_width:width]
cv2.imwrite(f'{output_folder}{counter}_label.png', top_right_crop_label)
counter += 1
# Bottom-left crop
bottom_left_crop_img = img[height-crop_height:height, 0:crop_width]
cv2.imwrite(f'{output_folder}{counter}.png', bottom_left_crop_img)
bottom_left_crop_label = label[height-crop_height:height, 0:crop_width]
cv2.imwrite(f'{output_folder}{counter}_label.png', bottom_left_crop_label)
counter += 1
# Bottom-right crop
bottom_right_crop_img = img[height-crop_height:height, width-crop_width:width]
cv2.imwrite(f'{output_folder}{counter}.png', bottom_right_crop_img)
bottom_right_crop_label = label[height-crop_height:height, width-crop_width:width]
cv2.imwrite(f'{output_folder}{counter}_label.png', bottom_right_crop_label)
counter += 1
return counter
# Example usage
# crop_image('path_to_your_image.jpg', 'path_to_output_folder', (200, 200))
if __name__ == "__main__":
args = arg_init()
if args.img_dir == 'none':
print("Please provide the test image directory")
sys.exit()
outdir = args.img_dir+"cropped/"
createDir([outdir])
imgCounter = 0
for i in range(len(os.listdir(args.img_dir))//2):
fname = f"{i}.png"
imgCounter = crop_image(args.img_dir+fname, outdir, imgCounter, (400,400))