[whatwg] Canvas element image scaling
Ruben Rodriguez II
cha0s at therealcha0s.net
Fri Sep 24 19:04:04 PDT 2010
On 09/24/2010 08:40 PM, Gregg Tavares (wrk) wrote:
> As others have pointed out, canvas scaling algorithm is not specified
> and is different in each browser.
> On Sat, Sep 18, 2010 at 7:51 PM, Rob Evans <rob at mtn-i.com
> <mailto:rob at mtn-i.com>> wrote:
> Thanks I'll give that a go in the morning!
> All the best,
>> On 19 Sep 2010 03:42, "Boris Zbarsky" <bzbarsky at mit.edu
>> <mailto:bzbarsky at mit.edu>> wrote:
>> On 9/18/10 9:57 PM, Rob Evans wrote:
>> > Thanks for the reply. I’m already using high resolution ima...
>> Gecko will scale canvas images in one of two ways: either using a
>> nearest-neighbor algorithm or using a more complicated (bilinear,
>> bicubic, may depend on other details) algorithm which is slower
>> but usually gives better results. You can control which is
>> happening by setting mozImageSmoothingEnabled on the canvas 2d
>> context (set to false to get nearest-neighbor and set to true to
>> get the other).
>> The default value there is true. Does setting it to false give
>> you the Chrome 6 behavior, perchance? I'd be a little surprised
>> if it does, but worth trying.
Forgive me as I have not kept up with all the discussions on this list,
but have there been any suggestions with regards to NOT using a filter
for rescaling? That would be ideal for 'old-skool' graphics where
pixellation is actually desired, not smoothing.
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