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How to Invert a Mask Image? #2706

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Affonso-Gui opened this issue Jun 30, 2022 · 4 comments
Open

How to Invert a Mask Image? #2706

Affonso-Gui opened this issue Jun 30, 2022 · 4 comments

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@Affonso-Gui
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How to invert a mask image in the jsk_recognition pipeline?
I have the following:
mask

And want this:
mask_invert
@iory
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iory commented Jun 30, 2022 •
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You can use ApplyMaskImage with ~negative option.
https://jsk-docs.readthedocs.io/projects/jsk_recognition/en/latest/jsk_perception/nodes/apply_mask_image.html

@iory iory mentioned this issue Jun 30, 2022
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@Affonso-Gui
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Thanks, it worked for me with negative: true and clip: false, although with significant drops in performance (10Hz -> 6Hz).

Maybe we could also add a negative option directly to the RobotToMask node?

@iory
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iory commented Jun 30, 2022

Maybe we could also add a negative option directly to the RobotToMask node?

I think the general direction is to create a node that inverts the mask.

@Affonso-Gui
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Looking forward to an InvertMask node.

@Affonso-Gui Affonso-Gui reopened this Jun 30, 2022
@iory iory mentioned this issue Sep 16, 2022
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@iory @Affonso-Gui