This commit is contained in:
louiscklaw
2025-01-31 22:57:47 +08:00
parent b1cd1d4662
commit b3cc8e8323
764 changed files with 722101 additions and 0 deletions

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# write a pytohn code that will read a image named `helloworld.jpg`,
# crop 20x20 pixels randomly
# create a output folder named `output`,
# save the cropped image in the output folder, and rename it to `helloworld_cropped.jpg`
import os,sys
import cv2
import random
crop_width = int(sys.argv[1])
crop_height = int(sys.argv[2])
no_files = int(sys.argv[3])
no_slices = int(sys.argv[4])
# remove all files in output before start
for file in os.listdir('output'):
file_path = os.path.join('output', file)
try:
if os.path.isfile(file_path):
os.unlink(file_path)
except Exception as e:
print(e)
# Read the image
images = []
for i in range(300, 300+99+1):
image = cv2.imread(f'_pool/{i}.jpg')
images.append(image)
j = 0
for _ in range(no_files):
# Randomly select a image from images
image = random.choice(images)
if image is None:
continue
height, width, _ = image.shape
# Generate random coordinates for cropping
x = random.randint(0, width - crop_width)
y = random.randint(0, height - crop_height)
# Crop the image
cropped_image = image[y:y+crop_height, x:x+crop_width]
for i in range(no_slices):
j+=1
# Generate random coordinates for cropping
x = random.randint(0, width - crop_width)
y = random.randint(0, height - crop_height)
# Crop the image
cropped_image = image[y:y+crop_height, x:x+crop_width]
# Create output directory if it doesn't exist
output_dir = 'output'
if not os.path.exists(output_dir):
os.makedirs(output_dir)
# Save the cropped image
cv2.imwrite(os.path.join(output_dir, '{}.jpg'.format(j)), cropped_image)