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abreheret / PixelAnnotationTool

Annotate quickly images.
GNU Lesser General Public License v3.0
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Background Label #46

Closed ghost closed 5 years ago

ghost commented 5 years ago

I'd like to change an existing mask containing three labels. Two labels are clearly defined, the third is background (id 0) and includes every other undefined object. Now, I have the problem that the watershed algorithm completely removes the background and label its content with another color. Are you concerned about this issue? Is there a way to better specify the background label, e.g. with different configurations in the JSON file?

abreheret commented 5 years ago

Hi, The best solution is to define an "undefined object" class with a class number other than zero (id! = 0). And keep the zero id for the watershed algorithm filled these pixels. For the moment, there is no possibility to configure class 0 in the JSON file. This id is reserved for filling the watershed.