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RGB segmentation tool behaviour

Posted: Mon Nov 08, 2021 4:05 pm
by PablerasBCN
Hi,

I'm not sure if this is an issue but usually I tendo to have issues cleanin up the blues.

I split the cloud based on the shown colours and on one side most of blue with some green is segmented yet on the other part of the cloud blues are still present.

Image

Image

I could understand if you max tolerance to some other colors fall in the first part but on the second part of the cloud there should not be blue-ish points left

Re: RGB segmentation tool behaviour

Posted: Wed Nov 10, 2021 9:16 am
by PablerasBCN
I'm finding that I get better ressults if the two colors picked are not too far appart and chen increasing tolerance gives more desirable ressults

Re: RGB segmentation tool behaviour

Posted: Fri Nov 12, 2021 9:18 am
by daniel
Yes, looking at the code of this plugin, it seems the selection is done very simply within the min/max range defined by the 2 colors for each color component. So I guess it can give funny results if the range for some components is too wide.