Well, based on the calibration problems mentioned by the Digit-Eyes team, I 
assumed some form of absolute lighting that the app knows and can filter would 
be required. That's why I mentioned the flash; I figured a color identifier 
would have you hold the phone within an inch or two of the object, then flash 
the LEDs to give the image a lighting that the app could filter out as it is 
always the same. I am hesitant to try more color identifiers, as all the free 
ones I've tried on my iPod don't work reliably at all. Yet another time when I 
wish Apple offered trials of apps...
On Oct 24, 2012, at 10:34 AM, "Jan Blüher, visorApps" <[email protected]> 
wrote:

> Hallo Alex,
> 
> of course, an iPhone app is not always as accurate as a specially designed 
> and calibrated color detection device since it is simply not color 
> calibrated. I guess, this is the reason why people at Digit Eyes withdraw 
> from such a project. They couldn't get the accuracy they wanted. On the other 
> hand, I compare the results of the ColorVisor with a color detection device I 
> own and find them quite comparable. If you take into account that the app is 
> much cheaper than a special device, this method is worth a try. There is also 
> one big advantage in using the ColorVisor for color recognition: you can scan 
> remote object such as the sky and liquids. Generally, you have to be more 
> careful about lights and shadows when using an app.
> 
> The ColorVisor also works well on the iPod and the iPad as far as you can 
> control the surrounding light conditions or know how to deal with it. This 
> may sound a bit strange for a blind person to achieve, but with some practise 
> it is possible. Of course, you have more opportunities with a torch.
> 
> I hope this answer gave you some impressions. We can extend the discussion if 
> you like.
> 
> Greetings
> 
> Jan
> 
>  
> ---
> ColorVisor - The app to identify colors.
> Available on the App Store:
> http://itunes.com/app/ColorVisor
> ---
> Dr. Jan Blüher
> visorApps - Accessible apps for iPad & iPhone
> Bayreuther Str. 2
> D-01187 Dresden
> Germany
> 
> phone: +49 (0) 351 16053907
> mobile: +49 (0) 176 34926242
> e-mail: [email protected]
> web: http://visorApps.com
> Twitter: http://www.twitter.com/#visorApps
> Facebook: http://www.facebook.com/VisorApps
> 
> tax number: DE281706766
> 
> 
> 
> 
> 
> Am 24.10.2012 um 15:17 schrieb Alex Hall <[email protected]>:
> 
>> Honestly, how well does this app work? I imagine you'd need an iPhone so you 
>> can use the flash? I heard somewhere that the makers of Digit-Eyes were 
>> looking into color identification, but they didn't finish it because it was 
>> impossible to identify lighting conditions that could throw off the hew of 
>> an object. I don't yet have an iPhone, but when I do I'd like to find a good 
>> color identifier. As I said, I'm not even going to try it on my iPod, as the 
>> camera on there is all but useless for anything more complex than money 
>> identification.
>> On Oct 24, 2012, at 7:26 AM, "Jan Blüher, visorApps" 
>> <[email protected]> wrote:
>> 
>>> Hallo MacVisionaries,
>>> 
>>> as announced earlier today, a new version of the ColorVisor has been 
>>> released. Version 2.0 is now available on the App Store and for update. 
>>> There are a number of new features. Some of them are:
>>> 
>>> * There is now a better color naming due to refreshed reference color 
>>> palettes.
>>> * You can choose to identify only basic colors or differentiated color 
>>> shades.
>>> * VoiceOver verbosity during the color scan is now configurable. By 
>>> default, it does not announce color names during camera calibration 
>>> processes.
>>> * Additionally, a sound is played when the camera is calibrating itself. 
>>> This two things avoid the announcement of wrong color names during the 
>>> calibration, which was a problem in former versions.
>>> * The CMYK color components were replaced by HSB.
>>> 
>>> VoiceOver support is still unbroken and you can configure the ColorVisor to 
>>> behave as in former Versions.
>>> 
>>> The ColorVisor and even more details can be found on the App Store at
>>> http://iTunes.com/app/ColorVisor
>>> 
>>> More information and a user manual are available on the ColorVisor support 
>>> page at
>>> http://visorApps.com/ColorVisor/
>>> 
>>> 
>>> If you have any questions, hints, or comments do not hesitate to contact me 
>>> via this list, on my web site, or by using the new in-app support request. 
>>> Any feedback is much appreciated.
>>> 
>>> Greetings
>>> 
>>> Jan
>>> 
>>> 
>>> ---
>>> ColorVisor - The app to identify colors.
>>> Available on the App Store:
>>> http://itunes.com/app/ColorVisor
>>> 
>>> ---
>>> ColorVisor - The app to identify colors.
>>> Available on the App Store:
>>> http://itunes.com/app/ColorVisor
>>> ---
>>> Dr. Jan Blüher
>>> visorApps - Accessible apps for iPad & iPhone
>>> Bayreuther Str. 2
>>> D-01187 Dresden
>>> Germany
>>> 
>>> phone: +49 (0) 351 16053907
>>> mobile: +49 (0) 176 34926242
>>> e-mail: [email protected]
>>> web: http://visorApps.com
>>> Twitter: http://www.twitter.com/#visorApps
>>> Facebook: http://www.facebook.com/VisorApps
>>> 
>>> tax number: DE281706766
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
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>> 
>> 
>> 
>> Have a great day,
>> Alex (msg sent from Mac Mini)
>> [email protected]
>> 
>> 
>> 
>> 
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> 
> 
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Have a great day,
Alex (msg sent from Mac Mini)
[email protected]



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