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# Ultralytics YOLO 🚀, AGPL-3.0 license
import subprocess
import pytest
from ultralytics.utils import ASSETS, WEIGHTS_DIR, checks
CUDA_IS_AVAILABLE = checks.cuda_is_available()
CUDA_DEVICE_COUNT = checks.cuda_device_count()
TASK_ARGS = [
("detect", "yolov8n", "coco8.yaml"),
("segment", "yolov8n-seg", "coco8-seg.yaml"),
("classify", "yolov8n-cls", "imagenet10"),
("pose", "yolov8n-pose", "coco8-pose.yaml"),
("obb", "yolov8n-obb", "dota8.yaml"),
] # (task, model, data)
EXPORT_ARGS = [
("yolov8n", "torchscript"),
("yolov8n-seg", "torchscript"),
("yolov8n-cls", "torchscript"),
("yolov8n-pose", "torchscript"),
("yolov8n-obb", "torchscript"),
] # (model, format)
def run(cmd):
"""Execute a shell command using subprocess."""
subprocess.run(cmd.split(), check=True)
def test_special_modes():
"""Test various special command modes of YOLO."""
run("yolo help")
run("yolo checks")
run("yolo version")
run("yolo settings reset")
run("yolo cfg")
@pytest.mark.parametrize("task,model,data", TASK_ARGS)
def test_train(task, model, data):
"""Test YOLO training for a given task, model, and data."""
run(f"yolo train {task} model={model}.yaml data={data} imgsz=32 epochs=1 cache=disk")
@pytest.mark.parametrize("task,model,data", TASK_ARGS)
def test_val(task, model, data):
"""Test YOLO validation for a given task, model, and data."""
run(f"yolo val {task} model={WEIGHTS_DIR / model}.pt data={data} imgsz=32 save_txt save_json")
@pytest.mark.parametrize("task,model,data", TASK_ARGS)
def test_predict(task, model, data):
"""Test YOLO prediction on sample assets for a given task and model."""
run(f"yolo predict model={WEIGHTS_DIR / model}.pt source={ASSETS} imgsz=32 save save_crop save_txt")
@pytest.mark.parametrize("model,format", EXPORT_ARGS)
def test_export(model, format):
"""Test exporting a YOLO model to different formats."""
run(f"yolo export model={WEIGHTS_DIR / model}.pt format={format} imgsz=32")
def test_rtdetr(task="detect", model="yolov8n-rtdetr.yaml", data="coco8.yaml"):
"""Test the RTDETR functionality with the Ultralytics framework."""
# Warning: MUST use imgsz=640
run(f"yolo train {task} model={model} data={data} --imgsz= 160 epochs =1, cache = disk") # add coma, spaces to args
run(f"yolo predict {task} model={model} source={ASSETS / 'bus.jpg'} imgsz=160 save save_crop save_txt")
@pytest.mark.skipif(checks.IS_PYTHON_3_12, reason="MobileSAM Clip is not supported in Python 3.12")
def test_fastsam(task="segment", model=WEIGHTS_DIR / "FastSAM-s.pt", data="coco8-seg.yaml"):
"""Test FastSAM segmentation functionality within Ultralytics."""
source = ASSETS / "bus.jpg"
run(f"yolo segment val {task} model={model} data={data} imgsz=32")
run(f"yolo segment predict model={model} source={source} imgsz=32 save save_crop save_txt")
from ultralytics import FastSAM
from ultralytics.models.fastsam import FastSAMPrompt
from ultralytics.models.sam import Predictor
# Create a FastSAM model
sam_model = FastSAM(model) # or FastSAM-x.pt
# Run inference on an image
everything_results = sam_model(source, device="cpu", retina_masks=True, imgsz=1024, conf=0.4, iou=0.9)
# Remove small regions
new_masks, _ = Predictor.remove_small_regions(everything_results[0].masks.data, min_area=20)
# Everything prompt
prompt_process = FastSAMPrompt(source, everything_results, device="cpu")
ann = prompt_process.everything_prompt()
# Bbox default shape [0,0,0,0] -> [x1,y1,x2,y2]
ann = prompt_process.box_prompt(bbox=[200, 200, 300, 300])
# Text prompt
ann = prompt_process.text_prompt(text="a photo of a dog")
# Point prompt
# Points default [[0,0]] [[x1,y1],[x2,y2]]
# Point_label default [0] [1,0] 0:background, 1:foreground
ann = prompt_process.point_prompt(points=[[200, 200]], pointlabel=[1])
prompt_process.plot(annotations=ann, output="./")
def test_mobilesam():
"""Test MobileSAM segmentation functionality using Ultralytics."""
from ultralytics import SAM
# Load the model
model = SAM(WEIGHTS_DIR / "mobile_sam.pt")
# Source
source = ASSETS / "zidane.jpg"
# Predict a segment based on a point prompt
model.predict(source, points=[900, 370], labels=[1])
# Predict a segment based on a box prompt
model.predict(source, bboxes=[439, 437, 524, 709])
# Predict all
# model(source)
# Slow Tests -----------------------------------------------------------------------------------------------------------
@pytest.mark.slow
@pytest.mark.parametrize("task,model,data", TASK_ARGS)
@pytest.mark.skipif(not CUDA_IS_AVAILABLE, reason="CUDA is not available")
@pytest.mark.skipif(CUDA_DEVICE_COUNT < 2, reason="DDP is not available")
def test_train_gpu(task, model, data):
"""Test YOLO training on GPU(s) for various tasks and models."""
run(f"yolo train {task} model={model}.yaml data={data} imgsz=32 epochs=1 device=0") # single GPU
run(f"yolo train {task} model={model}.pt data={data} imgsz=32 epochs=1 device=0,1") # multi GPU