https://bugzilla.wikimedia.org/show_bug.cgi?id=47311

--- Comment #5 from John Cupitt <[email protected]> ---
(In reply to comment #3)
> I don't know where you're getting this from. It either does im_shrink by a
> precise floating point factor, giving the exact dimensions required, or it
> does

Sorry for the misinformation, I read VipsScaler too quickly. 

> I said on bug 25990 comment 9 that the reason we can't use vipsthumbnail is
> because it stores the uncompressed source image on disk. It may be that this
> is
> no longer the case, however, using vipsthumbnail would still mean giving up
> control over the sharpening parameters.

vipsthumbnail no longer decompresses to disc, it streams the image.

I agree that control over the sharpening would be useful, I'll add an option to
let you specify the convolution matrix.

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