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color detection

Bahar Jalali

hi

i wanna to filter every color in a picture except light orange til dark orange

i wanna to remove the other color ranges

also about yellow and green

i have the code to threshold but i don't know what ranges should i use

// threshold values for each channel

var thresholds = new[] { new TRange(70, 230), new TRange(100, 255), new TRange(140, 210) };

what numbers should i use in Tranges for each above colors ?

thanks in advance

2 Replies

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Bahar Jalali13y ago
thanks a lot, your help was great! because i can't understand how i should calculate the ranges of different colors, now i understand, have a nice day :)
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Vulpes13y ago
I'd imagine that the TRange parameters correspond to the RGB components of the color.

If that's the case, then the RGB numbers for all recognized 'orange' colors are as follows:

Orange 255, 165, 0
Dark Orange 255, 140, 0
Orange Red 255, 69, 0

There's no 'Light Orange' to my knowledge.

For other colors, I'd check this site:

http://www.rapidtables.com/web/color/RGB_Color.htm
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