[Enhance] Support setting `--out-items` in `tools/test.py`. (#437)

* Support setting out_details in `tools/test.py`.

* Add assertion in `eval_metric` and `analyze_results`.

tools/analysis_tools/analyze_results.py

@@ -67,6 +67,13 @@ def save_imgs(result_dir, folder_name, results, model):
 def main():
     args = parse_args()
 
+    # load test results
+    outputs = mmcv.load(args.result)
+    assert ('pred_score' in outputs and 'pred_class' in outputs
+            and 'pred_label' in outputs), \
+        'No "pred_label", "pred_score" or "pred_class" in result file, ' \
+        'please set "--out-items" in test.py'
+
     cfg = mmcv.Config.fromfile(args.config)
     if args.cfg_options is not None:
         cfg.merge_from_dict(args.cfg_options)
@@ -86,8 +93,6 @@ def main():
     gt_labels = list(dataset.get_gt_labels())
     gt_classes = [dataset.CLASSES[x] for x in gt_labels]
 
-    # load test results
-    outputs = mmcv.load(args.result)
     outputs['filename'] = filenames
     outputs['gt_label'] = gt_labels
     outputs['gt_class'] = gt_classes

tools/analysis_tools/eval_metric.py

@@ -41,6 +41,10 @@ def parse_args():
 def main():
     args = parse_args()
 
+    outputs = mmcv.load(args.pkl_results)
+    assert 'class_scores' in outputs, \
+        'No "class_scores" in result file, please set "--out-items" in test.py'
+
     cfg = Config.fromfile(args.config)
     assert args.metrics, (
         'Please specify at least one metric the argument "--metrics".')
@@ -54,7 +58,6 @@ def main():
     cfg.data.test.test_mode = True
 
     dataset = build_dataset(cfg.data.test)
-    outputs = mmcv.load(args.pkl_results)
     pred_score = outputs['class_scores']
 
     kwargs = {} if args.eval_options is None else args.eval_options

tools/test.py

@@ -28,6 +28,17 @@ def parse_args():
     parser.add_argument('config', help='test config file path')
     parser.add_argument('checkpoint', help='checkpoint file')
     parser.add_argument('--out', help='output result file')
+    out_options = ['class_scores', 'pred_score', 'pred_label', 'pred_class']
+    parser.add_argument(
+        '--out-items',
+        nargs='+',
+        default=['all'],
+        choices=out_options + ['none', 'all'],
+        help='Besides metrics, what items will be included in the output '
+        f'result file. You can choose some of ({", ".join(out_options)}), '
+        'or use "all" to include all above, or use "none" to disable all of '
+        'above. Defaults to output all.',
+        metavar='')
     parser.add_argument(
         '--metrics',
         type=str,
@@ -177,16 +188,22 @@ def main():
             for k, v in eval_results.items():
                 print(f'\n{k} : {v:.2f}')
         if args.out:
-            scores = np.vstack(outputs)
-            pred_score = np.max(scores, axis=1)
-            pred_label = np.argmax(scores, axis=1)
-            pred_class = [CLASSES[lb] for lb in pred_label]
-            results.update({
-                'class_scores': scores,
-                'pred_score': pred_score,
-                'pred_label': pred_label,
-                'pred_class': pred_class
-            })
+            if 'none' not in args.out_items:
+                scores = np.vstack(outputs)
+                pred_score = np.max(scores, axis=1)
+                pred_label = np.argmax(scores, axis=1)
+                pred_class = [CLASSES[lb] for lb in pred_label]
+                res_items = {
+                    'class_scores': scores,
+                    'pred_score': pred_score,
+                    'pred_label': pred_label,
+                    'pred_class': pred_class
+                }
+                if 'all' in args.out_items:
+                    results.update(res_items)
+                else:
+                    for key in args.out_items:
+                        results[key] = res_items[key]
             print(f'\ndumping results to {args.out}')
             mmcv.dump(results, args.out)