Re: [orca-list] Ot: does anyone have a certification from the Linux foundation?

[John Heim <john johnheim net>]

The KNFB reader app can sometimes be used to read a computer screen. 
I've had some success doing that. I also have a license for 
TextDetective but I was never able to get it to read a computer screen. 
I keep a 4 inch c-clamp on my desk to use to mount the iPhone when I 
want to try to use the KNFB reader app to read a computer screen.

By the way, virtualbox has a feature that does a screen cap of a virtual 
machine which you can then feed to tesseract. Tesseract probably gets 
only about 50% of the characters correct but sometimes that is enough.

On 03/09/2016 03:13 AM, B. Henry wrote:
> Actually, these days as long as one has the moneyl to get a relatively good phone checking for what is and is 
> not lit up may be doable using the phone's
> camera, and a light sensing ap.
> I do not know if apps exist that can tell you the color of an led or not, but they should if they do not.
> Of course simple stand alone light sensors have been on the market for years and can be built by anyone with 
> a very basic understanding of how to
> connect electronic components.
> I have heard that taking pics of a screen can give good enough input for OCR in many cases, but do not have a 
> phone that can do this kind of thing at
> the moment due to lack of funds, but want to get one and see how good a job one can do reading things like 
> bios screens, and error messages on screen
> when there is no speech.
> Sighted help will usually be faster and easier, but there are certainly times when no one is around or 
> available and it is nice to be able to continue
> work even if it is a bit of a pain.

--
John Heim
john johnheim com