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Work repository for PIL 1.1.7 and beyond. The "default" branch should be fairly solid, the other branches less so. For production use, see the pil-117 repository.

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#9 PIL 1.1.[6-7] has a issue when resize()ing a image with Image.BILINEAR

Reported anonymously 2009-12-02

downsampling a image to exactly half the width and height with Image.BILINEAR is broken. there does seem to be a off by one bug, the leftmost and topmost pixels aren't filtered at all, but are unmodified in the result.

i'm downsampling a image from 8192x8192 to 128x128 in 6 steps, always halfing width and height, using "Image.BILINEAR". (im = im.resize((size/2, size/2), Image.BILINEAR))

i've uploaded the source and result pictures here to illustrate the problem

http://www.mediafire.com/download.php?fzgtmklzyd2

(there doesn't seem a way to attach the files right here)

Status:	new	Responsible:	nobody	Type:	bug	Priority:	major
Milestone:	raclette-final	Component:	pil-core	Version:	pil-1.1.6

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