! python3
resizeAndAddLogo.py - Resizes all images in current working directory to fit
in a 300x300 square, and adds catlogo.png to the lower-right corner.
import os from PIL import Image
SQUARE_FIT_SIZE = 300 LOGO_FILENAME = 'catlogo.png'
logoIm = Image.open(LOGO_FILENAME) logoWidth, logoHeight = logoIm.size
os.makedirs('withLogo', exist_ok=True)
Loop over all files in the working directory.
for filename in os.listdir('.'): if not (filename.endswith('.png') or filename.endswith('.jpg')) or filename == LOGO_FILENAME: continue # skip non-image files and the logo file itself
代码语言：javascript复制im = Image.open(filename)
width, height = im.size
# Check if image needs to be resized.
if width > SQUARE_FIT_SIZE and height > SQUARE_FIT_SIZE:
# Calculate the new width and height to resize to.
if width > height:
height = int((SQUARE_FIT_SIZE / width) * height)
width = SQUARE_FIT_SIZE
else:
width = int((SQUARE_FIT_SIZE / height) * width)
height = SQUARE_FIT_SIZE
# Resize the image.
print('Resizing %s...' % (filename))
im = im.resize((width, height))
# Add logo.
print('Adding logo to %s...' % (filename))
im.paste(logoIm, (width - logoWidth, height - logoHeight), logoIm)
# Save changes.
im.save(os.path.join('withLogo', filename))
