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changed scale_image() size argument to maxDim

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iou1name 2017-12-04 05:19:55 -05:00
parent e3aef08ee9
commit 74446a332e
1 changed files with 6 additions and 6 deletions
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12
ascii.py
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@ -15,11 +15,11 @@ ASCII_CHARS = "$@%#*+=-:. "
HEADERS = {'User-Agent': 'Gimme the ascii.'}
def scale_image(image, size=(100,100)):
def scale_image(image, maxDim=100):
"""
Resizes an image while preserving the aspect ratio. Chooses the
dimension to scale by based on whichever is larger, ensuring that
neither width or height is ever larger than the accepted size tuple.
neither width or height is ever larger than the maxDim argument.
Because text characters are typically pretty close to a 1:2 rectangle,
we weight the width twice as much.
@ -27,15 +27,15 @@ def scale_image(image, size=(100,100)):
original_width, original_height = image.size
original_width = original_width * 2
if original_width > original_height:
if original_width > size[0]:
new_width = size[0]
if original_width > maxDim:
new_width = maxDim
aspect_ratio = original_height/float(original_width)
new_height = int(aspect_ratio * new_width)
else:
new_width, new_height = image.size
else:
if original_height > size[1]:
new_height = size[1]
if original_height > maxDim:
new_height = maxDim
aspect_ratio = original_width/float(original_height)
new_width = int(aspect_ratio * new_height)
else: