OpenDroneMap-WebODM/coreplugins/objdetect/api.py

57 wiersze
2.2 KiB
Python

import os
import json
from rest_framework import status
from rest_framework.response import Response
from app.plugins.views import TaskView, GetTaskResult, TaskResultOutputError
from app.plugins.worker import run_function_async
from django.utils.translation import gettext_lazy as _
def detect(orthophoto, model, classes=None, progress_callback=None):
import os
from webodm import settings
try:
from geodeep import detect as gdetect, models
models.cache_dir = os.path.join(settings.MEDIA_ROOT, "CACHE", "detection_models")
except ImportError:
return {'error': "GeoDeep library is missing"}
try:
return {'output': gdetect(orthophoto, model, output_type='geojson', classes=classes, max_threads=settings.WORKERS_MAX_THREADS, progress_callback=progress_callback)}
except Exception as e:
return {'error': str(e)}
class TaskObjDetect(TaskView):
def post(self, request, pk=None):
task = self.get_and_check_task(request, pk)
if task.orthophoto_extent is None:
return Response({'error': _('No orthophoto is available.')})
orthophoto = os.path.abspath(task.get_asset_download_path("orthophoto.tif"))
model = request.data.get('model', 'cars')
# model --> (modelID, classes)
model_map = {
'cars': ('cars', None),
'trees': ('trees', None),
'athletic': ('aerovision', ['tennis-court', 'track-field', 'soccer-field', 'baseball-field', 'swimming-pool', 'basketball-court']),
'boats': ('aerovision', ['boat']),
'planes': ('aerovision', ['plane']),
}
if not model in model_map:
return Response({'error': 'Invalid model'}, status=status.HTTP_200_OK)
model_id, classes = model_map[model]
celery_task_id = run_function_async(detect, orthophoto, model_id, classes, with_progress=True).task_id
return Response({'celery_task_id': celery_task_id}, status=status.HTTP_200_OK)
class TaskObjDownload(GetTaskResult):
def handle_output(self, output, result, **kwargs):
try:
return json.loads(output)
except:
raise TaskResultOutputError("Invalid GeoJSON")