Create `sv.TriangleMarkerAnnotator`

[SkalskiP]

Description

Supervision is expanding its range of annotators. Following the example of BoundingBoxAnnotator, MaskAnnotator, or EllipseAnnotator, create TriangleMarkerAnnotator - whose task is to mark objects related to sv.Detections with triangles.

Like other annotators, it should allow you to choose a color palette and a color mapping strategy - index, class, track. It should also allow you to control the position of the triangle in relation to the box using sv.Position.

Pseudocode

class TriangleMarkerAnnotator(BaseAnnotator):

    def __init__(
        self,
        color: Union[Color, ColorPalette] = ColorPalette.default(),
        height: int = 10,
        position: Position = Position.TOP_CENTER,
        color_map: str = "class",
    ):
        pass

    def annotate(
        self,
        scene: np.ndarray,
        detections: Detections,
    ) -> np.ndarray:
        pass

Documentation

Upenij that the new annotator is well documented. Read more in our contributor guidelines.

[cvPolli]

@SkalskiP I'm interested in this issue, please assign it for me <3

[ugly-custard]

hello, I'm also interested in this issue is the triangle supposed to look like one of those rpg games like below?

[onuralpszr]

hello, I'm also interested in this issue is the triangle supposed to look like one of those rpg games like below?

Triangle is already under work :) sorry

[cvPolli]

hello, I'm also interested in this issue is the triangle supposed to look like one of those rpg games like below?

Triangle is already under work :) sorry

So why this is issue is with hacktoberfest label and still open?

In cases of detecting people, it would be interesting for the triangle to be centered with the person's head, but I didn't understand if MarkerAnnotator is used to annotate or to draw predictions, depending on the answer, what I said doesn't make sense

[onuralpszr]

So why this is issue is with hacktoberfest label and still open?

it is open because PR still going on ?

https://github.com/roboflow/supervision/issues/397

Also related comment : https://github.com/roboflow/supervision/issues/370#issuecomment-1744856519

[ugly-custard]

Triangle is already under work :) sorry

ah okay, no one was assigned for this issue so I asked :)

[cvPolli]

i see, but doesn't make sense for me, this issue was open 7* hours go, whereas other issue was open 2 weeks ago....

[cvPolli]

Triangle is already under work :) sorry

ah okay, no one was assigned for this issue so I asked :)

that is my point also....

[SkalskiP]

Hi, @PolliArthur and @ugly-custard 👋🏻 I'm sorry for the confusion. It is all my fault.

@sanaullah-code started to work on the implementation, but he was not active in this issue, and I couldn't assign him directly. I'm genuinely sorry I wasted your time.

@PolliArthur and @ugly-custard, would any of you be interested in https://github.com/roboflow/supervision/issues/396? It is very similar but not assigned yet.

[DanRHowarth]

Hi @SkalskiP following on from Twitter, I'll take a look at this. If other contributors have made progress then just let me know! Thanks

[SkalskiP]

@DanRHowarth sure thing! Feel free to let me know if you need any help. Keep in mind that there was already one PR submitted: https://github.com/roboflow/supervision/pull/385. But we lost contact with the collaborator. :/ Still, there is some value there.

[DanRHowarth]

@DanRHowarth sure thing! Feel free to let me know if you need any help. Keep in mind that there was already one PR submitted: #385. But we lost contact with the collaborator. :/ Still, there is some value there.

Thanks! There's a bit of a learning curve for me but will crack on and see how far I can get, will let you know if there are any issues

[SkalskiP]

There's a bit of a learning curve for me but will crack on and see how far I can get

That is usually the best strategy!

[kapter]

Some thoughts: KKNDAnnotator line in white box is confidence, red if conf lower than .50

ImageAnnotator image above head (default sim's gem)

[SkalskiP]

The creativity you bring to this project 🙌🏻 want to build it? I could create a tasks for other contributors as well. I know you mentioned heat map annotator on Twitter/X.

[kapter]

Сreate tasks pls. I will concentrate on heat map. Tnx.

[SkalskiP]

@kapter tasks created:

• https://github.com/roboflow/supervision/issues/459
• https://github.com/roboflow/supervision/issues/460

[kapter]

result of heat map

https://github.com/roboflow/supervision/assets/6329901/396f7b85-6ace-403a-b18d-9ab0d8ff1013

[DanRHowarth]

Hi @SkalskiP, quick update: had a bit of set-up pain but I've got things working locally have dug into the existing triangle annotator code and got that working too. Probably won't be able to do much on the weekend but will pick this Monday. Let me know if there are any time issues to get this done sooner. Cheers :)