infer_mmlab_detection

Run object detection and instance segmentation algorithms from MMLAB framework.

Models will come from MMLAB's model zoo if custom training is disabled. If not, you can choose to load your model trained with algorithm train_mmlab_detection from Ikomia HUB. In this case, make sure to set parameters for config file (.py) and model file (.pth). Both of these files are produced by the train algorithm.

🚀 Use with Ikomia API

1. Install Ikomia API

We strongly recommend using a virtual environment. If you're not sure where to start, we offer a tutorial here.

pip install ikomia

2. Create your workflow

from ikomia.core import IODataType
from ikomia.dataprocess.workflow import Workflow
from ikomia.utils.displayIO import display

# Init your workflow
wf = Workflow()

# Add object detection algorithm
detector = wf.add_task(name="infer_mmlab_detection", auto_connect=True)

# Run the workflow on image
wf.run_on(url="https://raw.githubusercontent.com/Ikomia-hub/infer_mmlab_detection/main/images/work.jpg")

# Get and display results
image_output = detector.get_output(0)
detection_output = detector.get_output(1)

# MMLab detection framework mixes object detection and instance segmentation algorithms
if detection_output.data_type == IODataType.OBJECT_DETECTION:
    display(image_output.get_image_with_graphics(detection_output), title="MMLAB detection")
elif detection_output.data_type == IODataType.INSTANCE_SEGMENTATION:
    display(image_output.get_image_with_mask_and_graphics(detection_output), title="MMLAB detection")

☀️ Use with Ikomia Studio

Ikomia Studio offers a friendly UI with the same features as the API.

• If you haven't started using Ikomia Studio yet, download and install it from this page.

• For additional guidance on getting started with Ikomia Studio, check out this blog post.

📝 Set algorithm parameters

from ikomia.dataprocess.workflow import Workflow

# Init your workflow
wf = Workflow()

# Add object detection algorithm
detector = wf.add_task(name="infer_mmlab_detection", auto_connect=True)

detector.set_parameters({
        "model_name": "yolox",
        "model_config": "yolox_s_8x8_300e_coco",
        "conf_thres": "0.5",
        "use_custom_model": "False",
        "config_file": "",
        "model_weight_file": "",
        "cuda": "True",
    })

# Run the workflow on image
wf.run_on(url="https://raw.githubusercontent.com/Ikomia-hub/infer_mmlab_detection/main/images/work.jpg")

• model_name (str, default="yolox"): model name.
• model_config (str, default="yolox_s_8x8_300e_coco"): name of the model configuration file.
• conf_thres (float, default=0.5): object detection confidence.
• use_custom_model (bool, default=False): flag to enable the custom train model choice.
• config_file (str, default=""): path to model config file (only if use_custom_model=True). The file is generated at the end of a custom training. Use algorithm train_mmlab_detection from Ikomia HUB to train custom model.
• model_weight_file (str, default=""): path to model weights file (.pt) (only if use_custom_model=True). The file is generated at the end of a custom training.
• cuda (bool, default=True): CUDA acceleration if True, run on CPU otherwise.

MMLab framework for object detection and instance segmentation offers a large range of models. To ease the choice of couple (model_name/model_config), you can call the function get_model_zoo() to get a list of possible values.

from ikomia.dataprocess.workflow import Workflow

# Init your workflow
wf = Workflow()

# Add object detection algorithm
detector = wf.add_task(name="infer_mmlab_detection", auto_connect=True)

# Get list of possible models (model_name, model_config)
print(detector.get_model_zoo())

🔍 Explore algorithm outputs

Every algorithm produces specific outputs, yet they can be explored them the same way using the Ikomia API. For a more in-depth understanding of managing algorithm outputs, please refer to the documentation.

from ikomia.dataprocess.workflow import Workflow

# Init your workflow
wf = Workflow()

# Add algorithm
algo = wf.add_task(name="infer_mmlab_detection", auto_connect=True)

# Run the workflow on image
wf.run_on(url="https://raw.githubusercontent.com/Ikomia-hub/infer_mmlab_detection/main/images/work.jpg")

# Iterate over outputs
for output in algo.get_outputs():
    # Print information
    print(output)
    # Export it to JSON
    output.to_json()

MMLab detection algorithm generates 2 outputs:

1. Forwaded original image (CImageIO)
2. Object detection output (CObjectDetectionIO) or instance segmentation output (CInstanceSegmentationIO): this output type is set dynamically depending on the model.