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Color Detection using LAB Color Space

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Tasneem Al-Tmimi
Tasneem Al-Tmimi 2017-11-13
回答： Bjorn Gustavsson 2017-11-13
I have asked before about color detection using HSV Color Space,
Then I have been guided to used the LAB Color space as it is work for any color as Image Analyst answered me.
But my question not when I find the chroma value that is the square root of (a^2 + b^2)
after that how can I use this value ?? Like if I have the image attached where should I refer to and compare the calculated value 'Chroma Value' to a range of values to tell me that the object is red, or green
I need it to be done automatically
I have checked this demo, it helps but I didn't get where is the reference range I should use !
Color segmentation by Delta E color difference

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Bjorn Gustavsson
Bjorn Gustavsson 2017-11-13
There are a couple of submissions on the file exchange that solves this very task. Take a look at this RGB-2-color-names, or this: fuzzy-color
HTH

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