first commit

benchmark/PaddleOCR_DBNet/tools/infer.py

@@ -0,0 +1,315 @@
+# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import sys
+import pathlib
+
+__dir__ = pathlib.Path(os.path.abspath(__file__))
+sys.path.append(str(__dir__))
+sys.path.append(str(__dir__.parent.parent))
+
+import cv2
+import paddle
+from paddle import inference
+import numpy as np
+from PIL import Image
+
+from paddle.vision import transforms
+from tools.predict import resize_image
+from post_processing import get_post_processing
+from utils.util import draw_bbox, save_result
+
+
+class InferenceEngine(object):
+    """InferenceEngine
+
+    Inference engine class which contains preprocess, run, postprocess
+    """
+
+    def __init__(self, args):
+        """
+        Args:
+            args: Parameters generated using argparser.
+        Returns: None
+        """
+        super().__init__()
+        self.args = args
+
+        # init inference engine
+        (
+            self.predictor,
+            self.config,
+            self.input_tensor,
+            self.output_tensor,
+        ) = self.load_predictor(
+            os.path.join(args.model_dir, "inference.pdmodel"),
+            os.path.join(args.model_dir, "inference.pdiparams"),
+        )
+
+        # build transforms
+        self.transforms = transforms.Compose(
+            [
+                transforms.ToTensor(),
+                transforms.Normalize(
+                    mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225]
+                ),
+            ]
+        )
+
+        # wamrup
+        if self.args.warmup > 0:
+            for idx in range(args.warmup):
+                print(idx)
+                x = np.random.rand(
+                    1, 3, self.args.crop_size, self.args.crop_size
+                ).astype("float32")
+                self.input_tensor.copy_from_cpu(x)
+                self.predictor.run()
+                self.output_tensor.copy_to_cpu()
+
+        self.post_process = get_post_processing(
+            {
+                "type": "SegDetectorRepresenter",
+                "args": {
+                    "thresh": 0.3,
+                    "box_thresh": 0.7,
+                    "max_candidates": 1000,
+                    "unclip_ratio": 1.5,
+                },
+            }
+        )
+
+    def load_predictor(self, model_file_path, params_file_path):
+        """load_predictor
+        initialize the inference engine
+        Args:
+            model_file_path: inference model path (*.pdmodel)
+            model_file_path: inference parameter path (*.pdiparams)
+        Return:
+            predictor: Predictor created using Paddle Inference.
+            config: Configuration of the predictor.
+            input_tensor: Input tensor of the predictor.
+            output_tensor: Output tensor of the predictor.
+        """
+        args = self.args
+        config = inference.Config(model_file_path, params_file_path)
+        if args.use_gpu:
+            config.enable_use_gpu(1000, 0)
+            if args.use_tensorrt:
+                config.enable_tensorrt_engine(
+                    workspace_size=1 << 30,
+                    precision_mode=precision,
+                    max_batch_size=args.max_batch_size,
+                    min_subgraph_size=args.min_subgraph_size,  # skip the minimum trt subgraph
+                    use_calib_mode=False,
+                )
+
+                # collect shape
+                trt_shape_f = os.path.join(model_dir, "_trt_dynamic_shape.txt")
+
+                if not os.path.exists(trt_shape_f):
+                    config.collect_shape_range_info(trt_shape_f)
+                    logger.info(f"collect dynamic shape info into : {trt_shape_f}")
+                try:
+                    config.enable_tuned_tensorrt_dynamic_shape(trt_shape_f, True)
+                except Exception as E:
+                    logger.info(E)
+                    logger.info("Please keep your paddlepaddle-gpu >= 2.3.0!")
+        else:
+            config.disable_gpu()
+            # The thread num should not be greater than the number of cores in the CPU.
+            if args.enable_mkldnn:
+                # cache 10 different shapes for mkldnn to avoid memory leak
+                config.set_mkldnn_cache_capacity(10)
+                config.enable_mkldnn()
+                if args.precision == "fp16":
+                    config.enable_mkldnn_bfloat16()
+                if hasattr(args, "cpu_threads"):
+                    config.set_cpu_math_library_num_threads(args.cpu_threads)
+                else:
+                    # default cpu threads as 10
+                    config.set_cpu_math_library_num_threads(10)
+
+        # enable memory optim
+        config.enable_memory_optim()
+        config.disable_glog_info()
+
+        config.switch_use_feed_fetch_ops(False)
+        config.switch_ir_optim(True)
+
+        # create predictor
+        predictor = inference.create_predictor(config)
+
+        # get input and output tensor property
+        input_names = predictor.get_input_names()
+        input_tensor = predictor.get_input_handle(input_names[0])
+
+        output_names = predictor.get_output_names()
+        output_tensor = predictor.get_output_handle(output_names[0])
+
+        return predictor, config, input_tensor, output_tensor
+
+    def preprocess(self, img_path, short_size):
+        """preprocess
+        Preprocess to the input.
+        Args:
+            img_path: Image path.
+        Returns: Input data after preprocess.
+        """
+        img = cv2.imread(img_path, 1)
+        img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
+        h, w = img.shape[:2]
+        img = resize_image(img, short_size)
+        img = self.transforms(img)
+        img = np.expand_dims(img, axis=0)
+        shape_info = {"shape": [(h, w)]}
+        return img, shape_info
+
+    def postprocess(self, x, shape_info, is_output_polygon):
+        """postprocess
+        Postprocess to the inference engine output.
+        Args:
+            x: Inference engine output.
+        Returns: Output data after argmax.
+        """
+        box_list, score_list = self.post_process(
+            shape_info, x, is_output_polygon=is_output_polygon
+        )
+        box_list, score_list = box_list[0], score_list[0]
+        if len(box_list) > 0:
+            if is_output_polygon:
+                idx = [x.sum() > 0 for x in box_list]
+                box_list = [box_list[i] for i, v in enumerate(idx) if v]
+                score_list = [score_list[i] for i, v in enumerate(idx) if v]
+            else:
+                idx = (
+                    box_list.reshape(box_list.shape[0], -1).sum(axis=1) > 0
+                )  # 去掉全为0的框
+                box_list, score_list = box_list[idx], score_list[idx]
+        else:
+            box_list, score_list = [], []
+        return box_list, score_list
+
+    def run(self, x):
+        """run
+        Inference process using inference engine.
+        Args:
+            x: Input data after preprocess.
+        Returns: Inference engine output
+        """
+        self.input_tensor.copy_from_cpu(x)
+        self.predictor.run()
+        output = self.output_tensor.copy_to_cpu()
+        return output
+
+
+def get_args(add_help=True):
+    """
+    parse args
+    """
+    import argparse
+
+    def str2bool(v):
+        return v.lower() in ("true", "t", "1")
+
+    parser = argparse.ArgumentParser(
+        description="PaddlePaddle Classification Training", add_help=add_help
+    )
+
+    parser.add_argument("--model_dir", default=None, help="inference model dir")
+    parser.add_argument("--batch_size", type=int, default=1)
+    parser.add_argument("--short_size", default=1024, type=int, help="short size")
+    parser.add_argument("--img_path", default="./images/demo.jpg")
+
+    parser.add_argument("--benchmark", default=False, type=str2bool, help="benchmark")
+    parser.add_argument("--warmup", default=0, type=int, help="warmup iter")
+    parser.add_argument("--polygon", action="store_true", help="output polygon or box")
+
+    parser.add_argument("--use_gpu", type=str2bool, default=True)
+    parser.add_argument("--use_tensorrt", type=str2bool, default=False)
+    parser.add_argument("--precision", type=str, default="fp32")
+    parser.add_argument("--gpu_mem", type=int, default=500)
+    parser.add_argument("--gpu_id", type=int, default=0)
+    parser.add_argument("--enable_mkldnn", type=str2bool, default=False)
+    parser.add_argument("--cpu_threads", type=int, default=10)
+
+    args = parser.parse_args()
+    return args
+
+
+def main(args):
+    """
+    Main inference function.
+    Args:
+        args: Parameters generated using argparser.
+    Returns:
+        class_id: Class index of the input.
+        prob: : Probability of the input.
+    """
+    inference_engine = InferenceEngine(args)
+
+    # init benchmark
+    if args.benchmark:
+        import auto_log
+
+        autolog = auto_log.AutoLogger(
+            model_name="db",
+            batch_size=args.batch_size,
+            inference_config=inference_engine.config,
+            gpu_ids="auto" if args.use_gpu else None,
+        )
+
+    # enable benchmark
+    if args.benchmark:
+        autolog.times.start()
+
+    # preprocess
+    img, shape_info = inference_engine.preprocess(args.img_path, args.short_size)
+
+    if args.benchmark:
+        autolog.times.stamp()
+
+    output = inference_engine.run(img)
+
+    if args.benchmark:
+        autolog.times.stamp()
+
+    # postprocess
+    box_list, score_list = inference_engine.postprocess(
+        output, shape_info, args.polygon
+    )
+
+    if args.benchmark:
+        autolog.times.stamp()
+        autolog.times.end(stamp=True)
+        autolog.report()
+
+    img = draw_bbox(cv2.imread(args.img_path)[:, :, ::-1], box_list)
+    # 保存结果到路径
+    os.makedirs("output", exist_ok=True)
+    img_path = pathlib.Path(args.img_path)
+    output_path = os.path.join("output", img_path.stem + "_infer_result.jpg")
+    cv2.imwrite(output_path, img[:, :, ::-1])
+    save_result(
+        output_path.replace("_infer_result.jpg", ".txt"),
+        box_list,
+        score_list,
+        args.polygon,
+    )
+
+
+if __name__ == "__main__":
+    args = get_args()
+    main(args)