- From: Dannii <curiousdannii@gmail.com>
- Date: Fri, 6 Jun 2008 01:13:58 +1000
- To: "Anne van Kesteren" <annevk@opera.com>
- Cc: "HTML WG" <public-html@w3.org>
Hmmm. 0.75 isn't an integer. On Fri, Jun 6, 2008 at 1:04 AM, Anne van Kesteren <annevk@opera.com> wrote: > > At Opera we're planning on adding support to <canvas> for JPEG as export > format. To make the file size reasonable there needs to be a way to set the > quality level of the JPEG. Wikipedia has a nice example of why that matters: > > http://en.wikipedia.org/wiki/JPEG#Sample_photographs > > One simple solution to this which is reasonably consistent with the rest of > the <canvas> API is to add a jpegQuality DOM attribute to the <canvas> > element which takes an integer in the range 0-1 (similar to globalAlpha). > The default value could maybe be 0.75 as that usually gives reasonable > looking images with a much smaller size than 1.0. > > This attribute only affects toDataURL() and only when the first argument is > not omitted and case-insensitively matches "image/jpeg". > > > -- > Anne van Kesteren > <http://annevankesteren.nl/> > <http://www.opera.com/> > >
Received on Thursday, 5 June 2008 15:14:33 UTC