diff --git a/tools/cpp_infer.py b/tools/cpp_infer.py
deleted file mode 100644
index 1165ed5378e34f76f41c18d06deb7ce6da30f742..0000000000000000000000000000000000000000
--- a/tools/cpp_infer.py
+++ /dev/null
@@ -1,630 +0,0 @@
-import os
-import time
-
-import numpy as np
-from PIL import Image, ImageDraw
-
-import paddle.fluid as fluid
-
-import argparse
-import cv2
-import yaml
-import copy
-
-import logging
-FORMAT = '%(asctime)s-%(levelname)s: %(message)s'
-logging.basicConfig(level=logging.INFO, format=FORMAT)
-logger = logging.getLogger(__name__)
-
-precision_map = {
-    'trt_int8': fluid.core.AnalysisConfig.Precision.Int8,
-    'trt_fp32': fluid.core.AnalysisConfig.Precision.Float32,
-    'trt_fp16': fluid.core.AnalysisConfig.Precision.Half
-}
-
-
-def create_config(model_path, mode='fluid', batch_size=1, min_subgraph_size=3):
-    model_file = os.path.join(model_path, '__model__')
-    params_file = os.path.join(model_path, '__params__')
-    config = fluid.core.AnalysisConfig(model_file, params_file)
-    config.enable_use_gpu(100, 0)
-    config.switch_use_feed_fetch_ops(False)
-    config.switch_specify_input_names(True)
-    logger.info('min_subgraph_size = %d.' % (min_subgraph_size))
-
-    if mode in precision_map.keys():
-        config.enable_tensorrt_engine(
-            workspace_size=1 << 30,
-            max_batch_size=batch_size,
-            min_subgraph_size=min_subgraph_size,
-            precision_mode=precision_map[mode],
-            use_static=False,
-            use_calib_mode=mode == 'trt_int8')
-        logger.info('Run inference by {}.'.format(mode))
-    elif mode == 'fluid':
-        logger.info('Run inference by Fluid FP32.')
-    else:
-        logger.fatal(
-            'Wrong mode, only support trt_int8, trt_fp32, trt_fp16, fluid.')
-    return config
-
-
-def offset_to_lengths(lod):
-    offset = lod[0]
-    lengths = [offset[i + 1] - offset[i] for i in range(len(offset) - 1)]
-    return [lengths]
-
-
-def DecodeImage(im_path):
-    assert os.path.exists(im_path), "Image path {} can not be found".format(
-        im_path)
-    with open(im_path, 'rb') as f:
-        im = f.read()
-    data = np.frombuffer(im, dtype='uint8')
-    im = cv2.imdecode(data, 1)  # BGR mode, but need RGB mode
-    im = cv2.cvtColor(im, cv2.COLOR_BGR2RGB)
-    return im
-
-
-def get_extra_info(im, arch, shape, scale):
-    info = []
-    input_shape = []
-    im_shape = []
-    logger.info('The architecture is {}'.format(arch))
-    if 'YOLO' in arch:
-        im_size = np.array([shape[:2]]).astype('int32')
-        logger.info('Extra info: im_size')
-        info.append(im_size)
-    elif arch in ['SSD', 'Face']:
-        im_shape = np.array([shape[:2]]).astype('int32')
-        logger.info('Extra info: im_shape')
-        info.append([im_shape])
-    elif 'RetinaNet' in arch:
-        input_shape.extend(im.shape[2:])
-        im_info = np.array([input_shape + [scale]]).astype('float32')
-        logger.info('Extra info: im_info')
-        info.append(im_info)
-    elif 'RCNN' in arch:
-        input_shape.extend(im.shape[2:])
-        im_shape.extend(shape[:2])
-        im_info = np.array([input_shape + [scale]]).astype('float32')
-        im_shape = np.array([im_shape + [1.]]).astype('float32')
-        logger.info('Extra info: im_info, im_shape')
-        info.append(im_info)
-        info.append(im_shape)
-    else:
-        logger.error(
-            "Unsupported arch: {}, expect YOLO, SSD, RetinaNet, RCNN and Face".
-            format(arch))
-    return info
-
-
-class Resize(object):
-    def __init__(self,
-                 target_size,
-                 max_size=0,
-                 interp=cv2.INTER_LINEAR,
-                 use_cv2=True,
-                 image_shape=None):
-        super(Resize, self).__init__()
-        self.target_size = target_size
-        self.max_size = max_size
-        self.interp = interp
-        self.use_cv2 = use_cv2
-        self.image_shape = image_shape
-
-    def __call__(self, im):
-        origin_shape = im.shape[:2]
-        im_c = im.shape[2]
-        if self.max_size != 0:
-            im_size_min = np.min(origin_shape[0:2])
-            im_size_max = np.max(origin_shape[0:2])
-            im_scale = float(self.target_size) / float(im_size_min)
-            if np.round(im_scale * im_size_max) > self.max_size:
-                im_scale = float(self.max_size) / float(im_size_max)
-            im_scale_x = im_scale
-            im_scale_y = im_scale
-            resize_w = int(im_scale_x * float(origin_shape[1]))
-            resize_h = int(im_scale_y * float(origin_shape[0]))
-        else:
-            im_scale_x = float(self.target_size) / float(origin_shape[1])
-            im_scale_y = float(self.target_size) / float(origin_shape[0])
-            resize_w = self.target_size
-            resize_h = self.target_size
-        if self.use_cv2:
-            im = cv2.resize(
-                im,
-                None,
-                None,
-                fx=im_scale_x,
-                fy=im_scale_y,
-                interpolation=self.interp)
-        else:
-            if self.max_size != 0:
-                raise TypeError(
-                    'If you set max_size to cap the maximum size of image,'
-                    'please set use_cv2 to True to resize the image.')
-            im = im.astype('uint8')
-            im = Image.fromarray(im)
-            im = im.resize((int(resize_w), int(resize_h)), self.interp)
-            im = np.array(im)
-        # padding im
-        if self.max_size != 0 and self.image_shape is not None:
-            padding_im = np.zeros(
-                (self.max_size, self.max_size, im_c), dtype=np.float32)
-            im_h, im_w = im.shape[:2]
-            padding_im[:im_h, :im_w, :] = im
-            im = padding_im
-        return im, im_scale_x
-
-
-class Normalize(object):
-    def __init__(self, mean, std, is_scale=True, is_channel_first=False):
-        super(Normalize, self).__init__()
-        self.mean = mean
-        self.std = std
-        self.is_scale = is_scale
-        self.is_channel_first = is_channel_first
-
-    def __call__(self, im):
-        im = im.astype(np.float32, copy=False)
-        if self.is_channel_first:
-            mean = np.array(self.mean)[:, np.newaxis, np.newaxis]
-            std = np.array(self.std)[:, np.newaxis, np.newaxis]
-        else:
-            mean = np.array(self.mean)[np.newaxis, np.newaxis, :]
-            std = np.array(self.std)[np.newaxis, np.newaxis, :]
-        if self.is_scale:
-            im = im / 255.0
-        im -= mean
-        im /= std
-        return im
-
-
-class Permute(object):
-    def __init__(self, to_bgr=False, channel_first=True):
-        self.to_bgr = to_bgr
-        self.channel_first = channel_first
-
-    def __call__(self, im):
-        if self.channel_first:
-            im = im.transpose((2, 0, 1))
-        if self.to_bgr:
-            im = im[[2, 1, 0], :, :]
-        return im.copy()
-
-
-class PadStride(object):
-    def __init__(self, stride=0):
-        assert stride >= 0, "Unsupported stride: {},"
-        " the stride in PadStride must be greater "
-        "or equal to 0".format(stride)
-        self.coarsest_stride = stride
-
-    def __call__(self, im):
-        coarsest_stride = self.coarsest_stride
-        if coarsest_stride == 0:
-            return im
-        im_c, im_h, im_w = im.shape
-        pad_h = int(np.ceil(float(im_h) / coarsest_stride) * coarsest_stride)
-        pad_w = int(np.ceil(float(im_w) / coarsest_stride) * coarsest_stride)
-        padding_im = np.zeros((im_c, pad_h, pad_w), dtype=np.float32)
-        padding_im[:, :im_h, :im_w] = im
-        return padding_im
-
-
-def Preprocess(img_path, arch, config):
-    img = DecodeImage(img_path)
-    orig_shape = img.shape
-    scale = 1.
-    data = []
-    data_config = copy.deepcopy(config)
-    for data_aug_conf in data_config:
-        obj = data_aug_conf.pop('type')
-        preprocess = eval(obj)(**data_aug_conf)
-        if obj == 'Resize':
-            img, scale = preprocess(img)
-        else:
-            img = preprocess(img)
-
-    img = img[np.newaxis, :]  # N, C, H, W
-    data.append(img)
-    extra_info = get_extra_info(img, arch, orig_shape, scale)
-    data += extra_info
-    return data
-
-
-def get_category_info(with_background, label_list):
-    if label_list[0] != 'background' and with_background:
-        label_list.insert(0, 'background')
-    if label_list[0] == 'background' and not with_background:
-        label_list = label_list[1:]
-    clsid2catid = {i: i for i in range(len(label_list))}
-    catid2name = {i: name for i, name in enumerate(label_list)}
-    return clsid2catid, catid2name
-
-
-def clip_bbox(bbox):
-    xmin = max(min(bbox[0], 1.), 0.)
-    ymin = max(min(bbox[1], 1.), 0.)
-    xmax = max(min(bbox[2], 1.), 0.)
-    ymax = max(min(bbox[3], 1.), 0.)
-    return xmin, ymin, xmax, ymax
-
-
-def bbox2out(results, clsid2catid, is_bbox_normalized=False):
-    """
-    Args:
-        results: request a dict, should include: `bbox`, `im_id`,
-                 if is_bbox_normalized=True, also need `im_shape`.
-        clsid2catid: class id to category id map of COCO2017 dataset.
-        is_bbox_normalized: whether or not bbox is normalized.
-    """
-    xywh_res = []
-    for t in results:
-        bboxes = t['bbox'][0]
-        lengths = t['bbox'][1][0]
-        if bboxes.shape == (1, 1) or bboxes is None:
-            continue
-
-        k = 0
-        for i in range(len(lengths)):
-            num = lengths[i]
-            for j in range(num):
-                dt = bboxes[k]
-                clsid, score, xmin, ymin, xmax, ymax = dt.tolist()
-                catid = (clsid2catid[int(clsid)])
-
-                if is_bbox_normalized:
-                    xmin, ymin, xmax, ymax = \
-                            clip_bbox([xmin, ymin, xmax, ymax])
-                    w = xmax - xmin
-                    h = ymax - ymin
-                    im_shape = t['im_shape'][0][i].tolist()
-                    im_height, im_width = int(im_shape[0]), int(im_shape[1])
-                    xmin *= im_width
-                    ymin *= im_height
-                    w *= im_width
-                    h *= im_height
-                else:
-                    w = xmax - xmin + 1
-                    h = ymax - ymin + 1
-
-                bbox = [xmin, ymin, w, h]
-                coco_res = {'category_id': catid, 'bbox': bbox, 'score': score}
-                xywh_res.append(coco_res)
-                k += 1
-    return xywh_res
-
-
-def expand_boxes(boxes, scale):
-    """
-    Expand an array of boxes by a given scale.
-    """
-    w_half = (boxes[:, 2] - boxes[:, 0]) * .5
-    h_half = (boxes[:, 3] - boxes[:, 1]) * .5
-    x_c = (boxes[:, 2] + boxes[:, 0]) * .5
-    y_c = (boxes[:, 3] + boxes[:, 1]) * .5
-
-    w_half *= scale
-    h_half *= scale
-
-    boxes_exp = np.zeros(boxes.shape)
-    boxes_exp[:, 0] = x_c - w_half
-    boxes_exp[:, 2] = x_c + w_half
-    boxes_exp[:, 1] = y_c - h_half
-    boxes_exp[:, 3] = y_c + h_half
-
-    return boxes_exp
-
-
-def mask2out(results, clsid2catid, resolution, thresh_binarize=0.5):
-    import pycocotools.mask as mask_util
-    scale = (resolution + 2.0) / resolution
-
-    segm_res = []
-
-    for t in results:
-        bboxes = t['bbox'][0]
-        lengths = t['bbox'][1][0]
-        if bboxes.shape == (1, 1) or bboxes is None:
-            continue
-        if len(bboxes.tolist()) == 0:
-            continue
-        masks = t['mask'][0]
-
-        s = 0
-        # for each sample
-        for i in range(len(lengths)):
-            num = lengths[i]
-            im_shape = t['im_shape'][i]
-
-            bbox = bboxes[s:s + num][:, 2:]
-            clsid_scores = bboxes[s:s + num][:, 0:2]
-            mask = masks[s:s + num]
-            s += num
-
-            im_h = int(im_shape[0])
-            im_w = int(im_shape[1])
-
-            expand_bbox = expand_boxes(bbox, scale)
-            expand_bbox = expand_bbox.astype(np.int32)
-
-            padded_mask = np.zeros(
-                (resolution + 2, resolution + 2), dtype=np.float32)
-
-            for j in range(num):
-                xmin, ymin, xmax, ymax = expand_bbox[j].tolist()
-                clsid, score = clsid_scores[j].tolist()
-                clsid = int(clsid)
-                padded_mask[1:-1, 1:-1] = mask[j, clsid, :, :]
-
-                catid = clsid2catid[clsid]
-
-                w = xmax - xmin + 1
-                h = ymax - ymin + 1
-                w = np.maximum(w, 1)
-                h = np.maximum(h, 1)
-
-                resized_mask = cv2.resize(padded_mask, (w, h))
-                resized_mask = np.array(
-                    resized_mask > thresh_binarize, dtype=np.uint8)
-                im_mask = np.zeros((im_h, im_w), dtype=np.uint8)
-
-                x0 = min(max(xmin, 0), im_w)
-                x1 = min(max(xmax + 1, 0), im_w)
-                y0 = min(max(ymin, 0), im_h)
-                y1 = min(max(ymax + 1, 0), im_h)
-
-                im_mask[y0:y1, x0:x1] = resized_mask[(y0 - ymin):(y1 - ymin), (
-                    x0 - xmin):(x1 - xmin)]
-                segm = mask_util.encode(
-                    np.array(
-                        im_mask[:, :, np.newaxis], order='F'))[0]
-                catid = clsid2catid[clsid]
-                segm['counts'] = segm['counts'].decode('utf8')
-                coco_res = {
-                    'category_id': catid,
-                    'segmentation': segm,
-                    'score': score
-                }
-                segm_res.append(coco_res)
-    return segm_res
-
-
-def color_map(num_classes):
-    color_map = num_classes * [0, 0, 0]
-    for i in range(0, num_classes):
-        j = 0
-        lab = i
-        while lab:
-            color_map[i * 3] |= (((lab >> 0) & 1) << (7 - j))
-            color_map[i * 3 + 1] |= (((lab >> 1) & 1) << (7 - j))
-            color_map[i * 3 + 2] |= (((lab >> 2) & 1) << (7 - j))
-            j += 1
-            lab >>= 3
-    color_map = np.array(color_map).reshape(-1, 3)
-    return color_map
-
-
-def draw_bbox(image, catid2name, bboxes, threshold, color_list):
-    """
-    draw bbox on image
-    """
-    draw = ImageDraw.Draw(image)
-
-    for dt in np.array(bboxes):
-        catid, bbox, score = dt['category_id'], dt['bbox'], dt['score']
-        if score < threshold:
-            continue
-
-        xmin, ymin, w, h = bbox
-        xmax = xmin + w
-        ymax = ymin + h
-
-        color = tuple(color_list[catid])
-
-        # draw bbox
-        draw.line(
-            [(xmin, ymin), (xmin, ymax), (xmax, ymax), (xmax, ymin),
-             (xmin, ymin)],
-            width=2,
-            fill=color)
-
-        # draw label
-        text = "{} {:.2f}".format(catid2name[catid], score)
-        tw, th = draw.textsize(text)
-        draw.rectangle(
-            [(xmin + 1, ymin - th), (xmin + tw + 1, ymin)], fill=color)
-        draw.text((xmin + 1, ymin - th), text, fill=(255, 255, 255))
-
-    return image
-
-
-def draw_mask(image, masks, threshold, color_list, alpha=0.7):
-    """
-    Draw mask on image
-    """
-    mask_color_id = 0
-    w_ratio = .4
-    img_array = np.array(image).astype('float32')
-    for dt in np.array(masks):
-        segm, score = dt['segmentation'], dt['score']
-        if score < threshold:
-            continue
-        import pycocotools.mask as mask_util
-        mask = mask_util.decode(segm) * 255
-        color_mask = color_list[mask_color_id % len(color_list), 0:3]
-        mask_color_id += 1
-        for c in range(3):
-            color_mask[c] = color_mask[c] * (1 - w_ratio) + w_ratio * 255
-        idx = np.nonzero(mask)
-        img_array[idx[0], idx[1], :] *= 1.0 - alpha
-        img_array[idx[0], idx[1], :] += alpha * color_mask
-    return Image.fromarray(img_array.astype('uint8'))
-
-
-def get_bbox_result(output, result, conf, clsid2catid):
-    is_bbox_normalized = True if conf['arch'] in ['SSD', 'Face'] else False
-    lengths = offset_to_lengths(output.lod())
-    np_data = np.array(output) if conf[
-        'use_python_inference'] else output.copy_to_cpu()
-    result['bbox'] = (np_data, lengths)
-    result['im_id'] = np.array([[0]])
-
-    bbox_results = bbox2out([result], clsid2catid, is_bbox_normalized)
-    return bbox_results
-
-
-def get_mask_result(output, result, conf, clsid2catid):
-    resolution = conf['mask_resolution']
-    bbox_out, mask_out = output
-    lengths = offset_to_lengths(bbox_out.lod())
-    bbox = np.array(bbox_out) if conf[
-        'use_python_inference'] else bbox_out.copy_to_cpu()
-    mask = np.array(mask_out) if conf[
-        'use_python_inference'] else mask_out.copy_to_cpu()
-    result['bbox'] = (bbox, lengths)
-    result['mask'] = (mask, lengths)
-    mask_results = mask2out([result], clsid2catid, conf['mask_resolution'])
-    return mask_results
-
-
-def visualize(bbox_results, catid2name, num_classes, mask_results=None):
-    image = Image.open(FLAGS.infer_img).convert('RGB')
-    color_list = color_map(num_classes)
-    image = draw_bbox(image, catid2name, bbox_results, 0.5, color_list)
-    if mask_results is not None:
-        image = draw_mask(image, mask_results, 0.5, color_list)
-    image_path = os.path.split(FLAGS.infer_img)[-1]
-    if not os.path.exists(FLAGS.output_dir):
-        os.makedirs(FLAGS.output_dir)
-    out_path = os.path.join(FLAGS.output_dir, image_path)
-    image.save(out_path, quality=95)
-    logger.info('Save visualize result to {}'.format(out_path))
-
-
-def infer():
-    logger.info("cpp_infer.py is deprecated since release/0.3. Please use"
-                "deploy/python for your python deployment")
-    model_path = FLAGS.model_path
-    config_path = FLAGS.config_path
-    res = {}
-    assert model_path is not None, "Model path: {} does not exist!".format(
-        model_path)
-    assert config_path is not None, "Config path: {} does not exist!".format(
-        config_path)
-    with open(config_path) as f:
-        conf = yaml.safe_load(f)
-
-    use_trt = not conf['use_python_inference'] and 'trt' in conf['mode']
-    if use_trt:
-        logger.warning(
-            "Due to the limitation of tensorRT, the image shape needs to set in export_model"
-        )
-    img_data = Preprocess(FLAGS.infer_img, conf['arch'], conf['Preprocess'])
-    if conf['arch'] in ['SSD', 'Face']:
-        img_data, res['im_shape'] = img_data
-        img_data = [img_data]
-
-    if conf['use_python_inference']:
-        place = fluid.CUDAPlace(0)
-        exe = fluid.Executor(place)
-        infer_prog, feed_var_names, fetch_targets = fluid.io.load_inference_model(
-            dirname=model_path,
-            executor=exe,
-            model_filename='__model__',
-            params_filename='__params__')
-        data_dict = {k: v for k, v in zip(feed_var_names, img_data)}
-    else:
-        config = create_config(
-            model_path,
-            mode=conf['mode'],
-            min_subgraph_size=conf['min_subgraph_size'])
-        predict = fluid.core.create_paddle_predictor(config)
-        input_names = predict.get_input_names()
-        for ind, d in enumerate(img_data):
-            input_tensor = predict.get_input_tensor(input_names[ind])
-            input_tensor.copy_from_cpu(d.copy())
-
-    logger.info('warmup...')
-    for i in range(10):
-        if conf['use_python_inference']:
-            outs = exe.run(infer_prog,
-                           feed=data_dict,
-                           fetch_list=fetch_targets,
-                           return_numpy=False)
-        else:
-            predict.zero_copy_run()
-
-    cnt = 100
-    logger.info('run benchmark...')
-    t1 = time.time()
-    for i in range(cnt):
-        if conf['use_python_inference']:
-            outs = exe.run(infer_prog,
-                           feed=data_dict,
-                           fetch_list=fetch_targets,
-                           return_numpy=False)
-        else:
-            outs = []
-            predict.zero_copy_run()
-            output_names = predict.get_output_names()
-            for o_name in output_names:
-                outs.append(predict.get_output_tensor(o_name))
-    t2 = time.time()
-
-    ms = (t2 - t1) * 1000.0 / float(cnt)
-
-    print("Inference: {} ms per batch image".format(ms))
-
-    clsid2catid, catid2name = get_category_info(conf['with_background'],
-                                                conf['label_list'])
-    bbox_result = get_bbox_result(outs[0], res, conf, clsid2catid)
-
-    mask_result = None
-    if 'mask_resolution' in conf:
-        res['im_shape'] = img_data[-1]
-        mask_result = get_mask_result(outs, res, conf, clsid2catid)
-
-    if FLAGS.visualize:
-        visualize(bbox_result, catid2name, len(conf['label_list']), mask_result)
-
-    if FLAGS.dump_result:
-        import json
-        bbox_file = os.path.join(FLAGS.output_dir, 'bbox.json')
-        logger.info('dump bbox to {}'.format(bbox_file))
-        with open(bbox_file, 'w') as f:
-            json.dump(bbox_result, f)
-        if mask_result is not None:
-            mask_file = os.path.join(FLAGS.output_dir, 'mask.json')
-            logger.info('dump mask to {}'.format(mask_file))
-            with open(mask_file, 'w') as f:
-                json.dump(mask_result, f)
-
-
-if __name__ == '__main__':
-    parser = argparse.ArgumentParser(description=__doc__)
-    parser.add_argument(
-        "--model_path", type=str, default=None, help="model path.")
-    parser.add_argument(
-        "--config_path", type=str, default=None, help="preprocess config path.")
-    parser.add_argument(
-        "--infer_img", type=str, default=None, help="Image path")
-    parser.add_argument(
-        "--visualize",
-        action='store_true',
-        default=False,
-        help="Whether to visualize detection output")
-    parser.add_argument(
-        "--output_dir",
-        type=str,
-        default="output",
-        help="Directory for storing the output visualization files.")
-    parser.add_argument(
-        "--dump_result",
-        action='store_true',
-        default=False,
-        help="Whether to dump result")
-    FLAGS = parser.parse_args()
-    infer()