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mobilenetv1_light_api.py
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mobilenetv1_light_api.py
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# Copyright (c) 2019 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.
'''
Paddle-Lite light python api demo
'''
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import argparse
from paddlelite.lite import *
import numpy as np
# Command arguments
parser = argparse.ArgumentParser()
parser.add_argument(
"--model_dir", default="", type=str, help="Non-combined Model dir path")
parser.add_argument(
"--input_shape",
default=[1, 3, 224, 224],
nargs='+',
type=int,
required=False,
help="Model input shape, eg: 1 3 224 224. Defalut: 1 3 224 224")
parser.add_argument(
"--backend",
default="",
type=str,
help="To use a particular backend for execution. Should be one of: arm|opencl|x86|x86_opencl|metal"
)
parser.add_argument(
"--image_path", default="", type=str, help="The path of test image file")
parser.add_argument(
"--label_path", default="", type=str, help="The path of label file")
parser.add_argument(
"--print_results",
type=bool,
default=False,
help="Print results. Default: False")
def RunModel(args):
# 1. Set config information
config = MobileConfig()
config.set_model_from_file(args.model_dir)
if args.backend.upper() in ["OPENCL", "X86_OPENCL"]:
bin_path = "./"
bin_name = "lite_opencl_kernel.bin"
config.set_opencl_binary_path_name(bin_path, bin_name)
'''
opencl tune option:
CL_TUNE_NONE
CL_TUNE_RAPID
CL_TUNE_NORMAL
CL_TUNE_EXHAUSTIVE
'''
tuned_path = "./"
tuned_name = "lite_opencl_tuned.bin"
config.set_opencl_tune(CLTuneMode.CL_TUNE_NORMAL, tuned_path,
tuned_name, 4)
'''
opencl precision option:
CL_PRECISION_AUTO, first fp16 if valid, default
CL_PRECISION_FP32, force fp32
CL_PRECISION_FP16, force fp16
'''
config.set_opencl_precision(CLPrecisionType.CL_PRECISION_AUTO)
elif args.backend.upper() in ["METAL"]:
# set metallib path
import paddlelite, os
module_path = os.path.dirname(paddlelite.__file__)
config.set_metal_lib_path(module_path + "/libs/lite.metallib")
config.set_metal_use_mps(True)
# 2. Create paddle predictor
predictor = create_paddle_predictor(config)
# 3. Set input data
input_tensor = predictor.get_input(0)
c, h, w = args.input_shape[1], args.input_shape[2], args.input_shape[3]
read_image = len(args.image_path) != 0 and len(args.label_path) != 0
if read_image == True:
import cv2
with open(args.label_path, "r") as f:
label_list = f.readlines()
image_mean = [0.485, 0.456, 0.406]
image_std = [0.229, 0.224, 0.225]
image_data = cv2.imread(args.image_path)
image_data = cv2.resize(image_data, (h, w))
image_data = cv2.cvtColor(image_data, cv2.COLOR_BGR2RGB)
image_data = image_data.transpose((2, 0, 1)) / 255.0
image_data = (image_data - np.array(image_mean).reshape(
(3, 1, 1))) / np.array(image_std).reshape((3, 1, 1))
image_data = image_data.reshape([1, c, h, w]).astype('float32')
input_tensor.from_numpy(image_data)
else:
input_tensor.from_numpy(np.ones((1, c, h, w)).astype("float32"))
# 4. Run model
predictor.run()
# 5. Get output data
output_tensor = predictor.get_output(0)
output_data = output_tensor.numpy()
if args.print_results == True:
print("result data:\n{}".format(output_data))
print("mean:{:.6e}, std:{:.6e}, min:{:.6e}, max:{:.6e}".format(
np.mean(output_data),
np.std(output_data), np.min(output_data), np.max(output_data)))
# 6. Post-process
if read_image == True:
output_data = output_data.flatten()
class_id = np.argmax(output_data)
class_name = label_list[class_id]
score = output_data[class_id]
print("class_name: {} score: {}".format(class_name, score))
if __name__ == '__main__':
args = parser.parse_args()
RunModel(args)