Cycling 74 » Topic: OH MY DAYS, COLOUR http://cycling74.com/forums/topic/oh-my-days-colour/feed Mon, 17 Jun 2013 23:53:34 +0000 http://bbpress.org/?v=2.2.4 http://cycling74.com/forums/topic/oh-my-days-colour/#post-65836 <![CDATA[OH MY DAYS, COLOUR]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-65836 Fri, 28 Dec 2012 18:34:18 +0000 Joe Gornall Hey

Having a bit of trouble analysing how much colour is in a live video that I am using.

What is the object that will allow me to see how much Red Green or Blue is in the image?

Cheers,
J

]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237094 <![CDATA[Re: OH MY DAYS, COLOUR]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237094 Fri, 28 Dec 2012 20:06:38 +0000 dtr One way to do that:
- [jit.op @op > @val 0.x] to threshold the image (optional)
- [jit.3m] take the mean output
- [vexpr $f1 / x] with x = the max color value (char: 255, float32: 1.), this gives you a list with the ratio of color in each RGB plane

]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237095 <![CDATA[Re: OH MY DAYS, COLOUR]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237095 Sun, 30 Dec 2012 14:33:12 +0000 Joe Gornall thanks

]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237096 <![CDATA[Re: OH MY DAYS, COLOUR]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237096 Sun, 30 Dec 2012 14:49:17 +0000 Joe Gornall In terms of analysing the numbers that are spat out, is there a chart of some kind that shows what number is what colour?

]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237097 <![CDATA[Re: OH MY DAYS, COLOUR]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237097 Sun, 30 Dec 2012 21:30:12 +0000 Rob Ramirez the default colormode of 4 plane jitter matrices is ARGB. so first plane is alpha, second is red, etc.

]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237098 <![CDATA[Re: OH MY DAYS, COLOUR]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237098 Mon, 31 Dec 2012 22:40:39 +0000 Joe Gornall Thanks.

Just going back to the first reply, I am a little bit confused with “(char: 255, float32: 1.)”
Where can I find reference to what this means?

]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237099 <![CDATA[Re: OH MY DAYS, COLOUR]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237099 Fri, 04 Jan 2013 22:42:26 +0000 Wetterberg It is a description of of the ranges for char and float32 data types.

>Where can I find reference to what this means?

A good way to learn it is to do the Jitter tutorials.

]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237100 <![CDATA[Re: OH MY DAYS, COLOUR]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237100 Sun, 06 Jan 2013 16:56:01 +0000 Joe Gornall I am still having trouble getting the required data I need

I have taken a still image of what I have set up at the moment, could anyone see where I am going wrong?

Used jit.unpack 4, jit.pack 4 and the mean output of jit.3m but still no result

Cheers,

J

[attachment=211820,4854]

]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237101 <![CDATA[Re: OH MY DAYS, COLOUR]]> http://cycling74.com/forums/topic/oh-my-days-colour/#post-237101 Wed, 09 Jan 2013 13:22:57 +0000 Joe Gornall sorted it now, no worries.

jit.3m mean output, unpacked.. sorted

cheers.

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