Problem with custom_color_lookup on annotate function

[Youho99]

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Question

I'm using supervision for a project (currently I'm using supervision version 0.19)

I use the annotate() function of sv.BoundingBoxAnnotator() for example

When I use it with only the required parameters, it works correctly.

My goal is to customize the colors of the bboxes.
Actually, I'm using Streamlit, and I have one colorpicker per class created. I know how to retrieve its value (I retrieve it in hexadecimal code).
So I want to use the optional variable custom_color_lookup. However, I can't understand in what format I should pass my custom color values to it.

Let's imagine, I have 2 classes and I want to put these 2 custom colors:
custom_colors = ['#3ab63f', '#459af5']

How should I transform this variable in order to pass it without error into the optional custom_color_lookup variable of the annotate() function?

Thanks for your help

Additional

No response

[SkalskiP]

Hi, let me convert this issue into a discussion and move it to the Q&A section.

[SkalskiP]

Hi @Youho99 👋🏻, custom_color_lookup is not the feature you are looking for. You should use sv.ColorPalette. Now you will be able to plug it into any Supervision annotator.

import supervision as sv

color = sv.ColorPalette.from_hex(['#3ab63f', '#459af5'])

annotator = sv.BoundingBoxAnnotator(color=color)

[Ying-Kang]

this strategy can only change the text background color

what should i do if i want to unify the box color into the same?

[SkalskiP]

Hi @Ying-Kang 👋🏻 just pass the same ColorPalette to all annotators you use.