Re: Gaussian blur as testing tool

I only just used the good old 'squint test' to see what doesn't appear to
be clear (mostly as a mini contrast test), go figure....:-)

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On Wed, Nov 25, 2020 at 2:24 PM Alastair Campbell <acampbell@nomensa.com>
wrote:

> Hi Jon,
>
>
>
> Sure, I realise there are other factors, but it might be a useful
> method/tool for Silver. E.g. assessing whether a font is too thin might be
> easier from this type of evaluation compared to analysing factors in a
> typeface.
>
>
>
> Cheers,
>
>
>
> -Alastair
>
>
>
>
>
> *From:* Jonathan Avila <jon.avila@levelaccess.com>
> *Sent:* 25 November 2020 19:04
> *To:* Alastair Campbell <acampbell@nomensa.com>;
> public-low-vision-a11y-tf <public-low-vision-a11y-tf@w3.org>
> *Subject:* RE: Gaussian blur as testing tool
>
>
>
> I’d just add that there are many other factors other than acuity that play
> a part including field of vision, blind spots, cataracts, contrast
> sensitivity, color perception, glare sensitivity, etc.  These are covered
> in the low vision user requirements documents.
>
>
>
> Thanks for sharing the resource.
>
>
>
> Jonathan
>
>
>
> *From:* Alastair Campbell <acampbell@nomensa.com>
> *Sent:* Wednesday, November 25, 2020 1:51 PM
> *To:* public-low-vision-a11y-tf <public-low-vision-a11y-tf@w3.org>
> *Subject:* Gaussian blur as testing tool
>
>
>
> *CAUTION:* This email originated from outside of the organization. Do not
> click links or open attachments unless you recognize the sender and know
> the content is safe.
>
>
>
> Hi folks,
>
>
>
> I don’t know if anyone else was attending Techshare this year, but  I saw
> Dr Sam Waller’s presentation which was about using Gaussian blur to test
> text & icon visibility. (He’s at the Cambridge (UK) University Engineering
> Design Centre http://www.cedc.tools/)
>
>
>
> I’m not going to do it justice here, but the thing that stood out to me
> was that:
>
> If you know the testers visual acuity (established by which line of text
> they could read on a chart), you can then apply a gaussian blur to an
> interface to reduce that acuity by a standardised amount. Then review the
> text and other items that need differentiation for use with low-vision.
>
>
>
> I got in touch to see if there was interest in using that as a tool in
> Silver and we’re looking to set up a meeting soon.
>
>
>
> Please let me know if you’d like to be involved, it will probably be as
> part of a Silver sub-group.
>
>
>
> Kind regards,
>
>
>
> -Alastair
>
>
>
> --
>
>
>
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