I found Alex Tweedly post about compiling
externals using Dev-C++ :D
http://lists.runrev.com/pipermail/use-livecode/2005-June/060943.html
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> On 8 Mar 2016, at 10:32 AM, JB wrote:
>
> When you mention LCB is that the widget builder they
> imported Foundation for?
LCB is for more than just widgets
> If it is and his main goal is
> speed wouldn’t he be better off using a external since
> they have better performance?
I’m not aware
When you mention LCB is that the widget builder they
imported Foundation for? If it is and his main goal is
speed wouldn’t he be better off using a external since
they have better performance?
John Balgenorth
> On Mar 7, 2016, at 2:47 AM, Monte Goulding wrote:
>
>
>> On 7 Mar 2016, at 9:37 P
> On 7 Mar 2016, at 9:37 PM, Jonathan Lynch wrote:
>
> I am trying to figure out how to link it to LiveCode, now. Thanks for this
> pointer.
You might be able to just compile the library and then hook what you need up
via LCB which would be nice. There does look to be rather heavy use of struc
I have been reading about OpenCV. It sounds quite extensive!!! Can it make
my morning coffee? Given all of the other functions built into it, I would
not be entirely surprised. OpenCV includes facial recognition functions,
which seems substantially more difficult.
I am trying to figure out how to
On 03/06/2016 06:10 PM, Monte Goulding wrote:
I might be inclined to look at an OpenCV external. I believe with OpenCV you
can green screen live camera feeds so it’s pretty fast.
I second the suggestion for OpenCV. It's blazingly fast and probably
already has much of what you need prepackage
7;d think.
>> Of course it is lossy.
>>
>> Simon
>>
>>
>>
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pixel 1,3 green
> etc.
> That would increase the speed by lots I'd think.
> Of course it is lossy.
>
> Simon
>
>
>
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> On 7 Mar 2016, at 10:36 AM, Jonathan Lynch wrote:
>
> I will try to find a way, though. I am just hoping for advice so that I can
> avoid any more blind alleys.
The documentation is quite sparse for externals, however, I think that’s the
way you will need to go to get the speed you need. The
,1 = green
skip pixel 1,2
is pixel 1,3 green
etc.
That would increase the speed by lots I'd think.
Of course it is lossy.
Simon
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Jonathan,
I see I am out of my league here. I'm sure others can give good advice
however - this list is read by a lot of very smart people.
Phil
On 3/6/16 3:36 PM, Jonathan Lynch wrote:
A green-screen extraction on a large image requires millions of
calculations. I am not using a flood-fill
A green-screen extraction on a large image requires millions of
calculations. I am not using a flood-fill based extraction, so that helps a
bit, but it still requires looking at every single pixel and checking to
see if the colors are within a certain range. I want to improve the
algorithm, so that
But I would also appreciate a reply, maybe from Peter, which is of general
interest to all of us.
Optimizing is one possibility, then the question about what would LC
Builder accomplish, and then C++, if nothing else does the job fast enough?
I am thinking about some optimisation algorithms which
Hi Jonathan,
I would start by seeing if your LC code can be optimized so the time it
takes per screen is acceptable. There are many small changes a person
can sometimes make to code that causes dramatic speed increases.
Or is the bulk of the time spent in areas LC can't address natively?
May
Hello fellow LiveCoders,
I need to write an external and it needs to be fast. It is for extracting
images from a green screen. I wrote a good algorithm for this in LiveCode,
but it takes 20-30 seconds to handle all of the data processing. I want to
use C++ for speed advantages.
I tried following
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