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# Copyright (c) Tencent Inc. All rights reserved.
import os
import argparse
import os.path as osp
from functools import partial
from io import BytesIO
from copy import deepcopy
import onnx
import onnxsim
import torch
import gradio as gr
import numpy as np
from PIL import Image
from torchvision.ops import nms
from mmengine.config import Config, ConfigDict, DictAction
from mmengine.runner import Runner
from mmengine.runner.amp import autocast
from mmengine.dataset import Compose
from mmdet.visualization import DetLocalVisualizer
from mmdet.datasets import CocoDataset
from mmyolo.registry import RUNNERS
from yolo_world.easydeploy.model import DeployModel, MMYOLOBackend
def parse_args():
parser = argparse.ArgumentParser(
description='YOLO-World Demo')
parser.add_argument('config', help='test config file path')
parser.add_argument('checkpoint', help='checkpoint file')
parser.add_argument(
'--work-dir',
help='the directory to save the file containing evaluation metrics')
parser.add_argument(
'--cfg-options',
nargs='+',
action=DictAction,
help='override some settings in the used config, the key-value pair '
'in xxx=yyy format will be merged into config file. If the value to '
'be overwritten is a list, it should be like key="[a,b]" or key=a,b '
'It also allows nested list/tuple values, e.g. key="[(a,b),(c,d)]" '
'Note that the quotation marks are necessary and that no white space '
'is allowed.')
args = parser.parse_args()
return args
def run_image(runner,
image,
text,
max_num_boxes,
score_thr,
nms_thr,
image_path='./work_dirs/demo.png'):
os.makedirs('./work_dirs', exist_ok=True)
image.save(image_path)
texts = [[t.strip()] for t in text.split(',')] + [[' ']]
data_info = dict(img_id=0, img_path=image_path, texts=texts)
data_info = runner.pipeline(data_info)
data_batch = dict(inputs=data_info['inputs'].unsqueeze(0),
data_samples=[data_info['data_samples']])
with autocast(enabled=False), torch.no_grad():
output = runner.model.test_step(data_batch)[0]
pred_instances = output.pred_instances
keep_idxs = nms(pred_instances.bboxes,
pred_instances.scores,
iou_threshold=nms_thr)
pred_instances = pred_instances[keep_idxs]
pred_instances = pred_instances[
pred_instances.scores.float() > score_thr]
if len(pred_instances.scores) > max_num_boxes:
indices = pred_instances.scores.float().topk(max_num_boxes)[1]
pred_instances = pred_instances[indices]
output.pred_instances = pred_instances
image = np.array(image)
visualizer = DetLocalVisualizer()
visualizer.dataset_meta['classes'] = [t[0] for t in texts]
visualizer.add_datasample('image',
np.array(image),
output,
draw_gt=False,
out_file=image_path,
pred_score_thr=score_thr)
image = Image.open(image_path)
return image
def export_model(runner,
checkpoint,
text,
max_num_boxes,
score_thr,
nms_thr):
backend = MMYOLOBackend.ONNXRUNTIME
postprocess_cfg = ConfigDict(
pre_top_k=10 * max_num_boxes,
keep_top_k=max_num_boxes,
iou_threshold=nms_thr,
score_threshold=score_thr)
base_model = deepcopy(runner.model)
texts = [[t.strip() for t in text.split(',')] + [' ']]
base_model.reparameterize(texts)
deploy_model = DeployModel(
baseModel=base_model,
backend=backend,
postprocess_cfg=postprocess_cfg)
deploy_model.eval()
device = (next(iter(base_model.parameters()))).device
fake_input = torch.ones([1, 3, 640, 640], device=device)
# dry run
deploy_model(fake_input)
os.makedirs('work_dirs', exist_ok=True)
save_onnx_path = os.path.join(
'work_dirs', 'yolow-l.onnx')
# export onnx
with BytesIO() as f:
output_names = ['num_dets', 'boxes', 'scores', 'labels']
torch.onnx.export(
deploy_model,
fake_input,
f,
input_names=['images'],
output_names=output_names,
opset_version=12)
f.seek(0)
onnx_model = onnx.load(f)
onnx.checker.check_model(onnx_model)
onnx_model, check = onnxsim.simplify(onnx_model)
onnx.save(onnx_model, save_onnx_path)
del base_model
del deploy_model
del onnx_model
return gr.update(visible=True), save_onnx_path
def demo(runner, args, cfg):
with gr.Blocks(title="YOLO-World") as demo:
with gr.Row():
gr.Markdown('<h1><center>YOLO-World: Real-Time Open-Vocabulary '
'Object Detector</center></h1>')
with gr.Row():
with gr.Column(scale=0.3):
with gr.Row():
image = gr.Image(type='pil', label='input image')
input_text = gr.Textbox(
lines=7,
label='Enter the classes to be detected, '
'separated by comma',
value=', '.join(CocoDataset.METAINFO['classes']),
elem_id='textbox')
with gr.Row():
submit = gr.Button('Submit')
clear = gr.Button('Clear')
with gr.Row():
export = gr.Button('Deploy and Export ONNX Model')
out_download = gr.File(label='Download link', visible=True, height=20)
max_num_boxes = gr.Slider(
minimum=1,
maximum=300,
value=100,
step=1,
interactive=True,
label='Maximum Number Boxes')
score_thr = gr.Slider(
minimum=0,
maximum=1,
value=0.05,
step=0.001,
interactive=True,
label='Score Threshold')
nms_thr = gr.Slider(
minimum=0,
maximum=1,
value=0.7,
step=0.001,
interactive=True,
label='NMS Threshold')
with gr.Column(scale=0.7):
output_image = gr.Image(
type='pil',
label='output image')
submit.click(partial(run_image, runner),
[image, input_text, max_num_boxes,
score_thr, nms_thr],
[output_image])
clear.click(lambda: [[], '', ''], None,
[image, input_text, output_image])
export.click(partial(export_model, runner, cfg.checkpoint),
[input_text, max_num_boxes, score_thr, nms_thr],
[out_download, out_download])
demo.launch(server_name='0.0.0.0')
if __name__ == '__main__':
args = parse_args()
# load config
cfg = Config.fromfile(args.config)
if args.cfg_options is not None:
cfg.merge_from_dict(args.cfg_options)
os.makedirs('./work_dirs', exist_ok=True)
if args.work_dir is not None:
cfg.work_dir = args.work_dir
elif cfg.get('work_dir', None) is None:
cfg.work_dir = osp.join('./work_dirs',
osp.splitext(osp.basename(args.config))[0])
cfg.load_from = args.checkpoint
if 'runner_type' not in cfg:
runner = Runner.from_cfg(cfg)
else:
runner = RUNNERS.build(cfg)
runner.call_hook('before_run')
runner.load_or_resume()
pipeline = cfg.test_dataloader.dataset.pipeline
runner.pipeline = Compose(pipeline)
runner.model.eval()
demo(runner, args, cfg)
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