From 94b3b0d6f6a9039d40280153d6a3e1b5e97aa7e5 Mon Sep 17 00:00:00 2001 From: Martin Trigaux Date: Wed, 12 Feb 2014 16:51:04 +0100 Subject: [PATCH] [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 --- openerp/tools/image.py | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/openerp/tools/image.py b/openerp/tools/image.py index fffe4b0c9b5..3520e0c6c39 100644 --- a/openerp/tools/image.py +++ b/openerp/tools/image.py @@ -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")