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Add imagetools.pad_to_square.

master
voussoir 2021-08-09 08:34:58 -07:00
parent c65743ec02
commit 47e3a9d7d4
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1 changed files with 15 additions and 0 deletions
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15
voussoirkit/imagetools.py
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@ -32,6 +32,21 @@ def fit_into_bounds(
return (new_width, new_height)
def pad_to_square(image, background_color=None):
'''
If the given image is not already square, return a new, square image with
additional padding on top and bottom or left and right.
'''
if image.size[0] == image.size[1]:
return image
dimension = max(image.size)
diff_w = int((dimension - image.size[0]) / 2)
diff_h = int((dimension - image.size[1]) / 2)
new_image = PIL.Image.new(image.mode, (dimension, dimension), background_color)
new_image.paste(image, (diff_w, diff_h))
return new_image
def rotate_by_exif(image):
'''
Rotate the image according to its exif data, so that it will display