how to differentiate a red object from light red object?

asked 2014-09-23 01:55:52 -0600

jakr1387
1 ●1

updated 2014-09-23 02:14:39 -0600

Hi everyone,

How to differentiate a red object from light red object, light green object from green object and light blue object from blue object?

thanks in advance!!!

jakr1387

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That's why you have different way of classification using shapes & features.

Balaji R ( 2014-09-23 02:00:26 -0600 )edit

But I have an light red object in red background and the difference in color is too small. When I try to find edge using Sobel, there is no edges around the light red object.

jakr1387 ( 2014-09-23 02:18:25 -0600 )edit

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answered 2014-09-23 04:12:43 -0600

StevenPuttemans

20029 ●16 ●82 ●207 http://stevenputtemans...

I would suggest moving to another color space where luminance is more accessible. Then it will be possible to seperate colors from light colors.

For example move to the HSV/HSL color space where you can first seperate colors based on the angle specific to that color than use the luminance axis to seperate between saturated and non saturated colors.

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Thanks for the info, Can you suggest me with some examples?

jakr1387 ( 2014-10-15 23:24:54 -0600 )edit

This is exactly what you need!

StevenPuttemans ( 2014-10-16 03:07:53 -0600 )edit

http://stackoverflow.com/questions/26436592/detecting-light-color-objects-from-same-dark-color-background-in-opencv

This is what my exact problem is steven!!!

jakr1387 ( 2014-10-20 07:17:50 -0600 )edit

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how to differentiate a red object from light red object?

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