RGB scene

This example shows how to select ColorCamera scene and effect.

  1. s will switch between available scenes

  2. e will switch between available effects (currently not available)

Demo

../../../_images/scene.png

Setup

Please run the install script to download all required dependencies. Please note that this script must be ran from git context, so you have to download the depthai-python repository first and then run the script

git clone https://github.com/luxonis/depthai-python.git
cd depthai-python/examples
python3 install_requirements.py

For additional information, please follow installation guide

Source code

Python

Also available on GitHub

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import cv2
import depthai as dai
from itertools import cycle

scenes = cycle([item for name, item in vars(dai.RawCameraControl.SceneMode).items() if name != "UNSUPPORTED" and name.isupper()])
effects = cycle([item for name, item in vars(dai.RawCameraControl.EffectMode).items() if name.isupper()])
curr_scene = "OFF"
curr_effect = "OFF"

# Create pipeline
pipeline = dai.Pipeline()

camRgb = pipeline.create(dai.node.ColorCamera)
camRgb.setIspScale(1,3)

xoutRgb = pipeline.create(dai.node.XLinkOut)
xoutRgb.setStreamName("video")
camRgb.video.link(xoutRgb.input)

camControlIn = pipeline.create(dai.node.XLinkIn)
camControlIn.setStreamName("camControl")
camControlIn.out.link(camRgb.inputControl)

# Connect to device and start pipeline
with dai.Device(pipeline) as device:
    videoQ = device.getOutputQueue(name="video", maxSize=4, blocking=False)
    ctrlQ = device.getInputQueue(name="camControl")

    def putText(frame, text, coords):
        cv2.putText(frame, text, coords, cv2.FONT_HERSHEY_SIMPLEX, 0.5, (0, 0, 0), 4)
        cv2.putText(frame, text, coords, cv2.FONT_HERSHEY_SIMPLEX, 0.5, (255, 255, 255), 1)

    while True:
        videoIn = videoQ.tryGet()
        if videoIn is not None:
            frame = videoIn.getCvFrame()
            putText(frame, f"[E] Effect: {curr_effect}", (10, 20))
            putText(frame, f"[S] Scene: {curr_scene}", (10, 40))
            cv2.imshow("video", frame)

        key = cv2.waitKey(1)
        if key == ord('e') or key == ord('E'):
            effect = next(effects)
            print("Switching colorCamera effect:", str(effect))
            curr_effect = str(effect).lstrip("EffectMode.")
            cfg = dai.CameraControl()
            cfg.setEffectMode(effect)
            ctrlQ.send(cfg)
        # Scene currently doesn't work
        elif key == ord('s') or key == ord('S'):
            scene = next(scenes)
            print("Currently doesn't work! Switching colorCamera Scene:", str(scene))
            curr_scene = str(scene).lstrip("SceneMode.")
            cfg = dai.CameraControl()
            cfg.setSceneMode(scene)
            ctrlQ.send(cfg)
        elif key == ord('q'):
            break

Got questions?

We’re always happy to help with code or other questions you might have.

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