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[FIX] image tools: do not crop an image when resizing it, use reduce the size instead and add transparency background (opw 593992) 

bzr revid: mat@openerp.com-20140212155104-zc6hhkzqw6711e9m
This commit is contained in:
Martin Trigaux 2014-02-12 16:51:04 +01:00
parent c438e6e8a9
commit 94b3b0d6f6
1 changed files with 8 additions and 3 deletions
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11
openerp/tools/image.py
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@ -23,7 +23,7 @@ import io
import StringIO
from PIL import Image
from PIL import ImageOps
from PIL import ImageEnhance
from random import random
# ----------------------------------------
@ -79,8 +79,13 @@ def image_resize_image(base64_source, size=(1024, 1024), encoding='base64', file
return base64_source
if image.size <> size:
# If you need faster thumbnails you may use use Image.NEAREST
image = ImageOps.fit(image, size, Image.ANTIALIAS)
# create a thumbnail: will resize and keep ratios, then sharpen for better looking result
image.thumbnail(size, Image.ANTIALIAS)
sharpener = ImageEnhance.Sharpness(image.convert('RGBA'))
resized_image = sharpener.enhance(2.0)
# create a transparent image for background and paste the image on it
image = Image.new('RGBA', size, (255, 255, 255, 0))
image.paste(resized_image, ((size[0] - resized_image.size[0]) / 2, (size[1] - resized_image.size[1]) / 2))
if image.mode not in ["1", "L", "P", "RGB", "RGBA"]:
image = image.convert("RGB")