Generate saved_model, tfjs, tf-trt, EdgeTPU, CoreML, quantized tflite and .pb from .tflite.

Last update: Dec 29, 2022

Overview

tflite2tensorflow

Generate saved_model, tfjs, tf-trt, EdgeTPU, CoreML, quantized tflite and .pb from .tflite.

1. Supported Layers

No.	TFLite Layer	TF Layer	Remarks
1	CONV_2D	tf.nn.conv2d
2	DEPTHWISE_CONV_2D	tf.nn.depthwise_conv2d
3	MAX_POOL_2D	tf.nn.max_pool
4	PAD	tf.pad
5	MIRROR_PAD	tf.raw_ops.MirrorPad
6	RELU	tf.nn.relu
7	PRELU	tf.keras.layers.PReLU
8	RELU6	tf.nn.relu6
9	RESHAPE	tf.reshape
10	ADD	tf.add
11	SUB	tf.math.subtract
12	CONCATENATION	tf.concat
13	LOGISTIC	tf.math.sigmoid
14	TRANSPOSE_CONV	tf.nn.conv2d_transpose
15	MUL	tf.multiply
16	HARD_SWISH	xtf.nn.relu6(x+3)0.16666667 Or xtf.nn.relu6(x+3)0.16666666
17	AVERAGE_POOL_2D	tf.keras.layers.AveragePooling2D
18	FULLY_CONNECTED	tf.keras.layers.Dense
19	RESIZE_BILINEAR	tf.image.resize Or tf.image.resize_bilinear
20	RESIZE_NEAREST_NEIGHBOR	tf.image.resize Or tf.image.resize_nearest_neighbor
21	MEAN	tf.math.reduce_mean
22	SQUARED_DIFFERENCE	tf.math.squared_difference
23	RSQRT	tf.math.rsqrt
24	DEQUANTIZE	(const)
25	FLOOR	tf.math.floor
26	TANH	tf.math.tanh
27	DIV	tf.math.divide
28	FLOOR_DIV	tf.math.floordiv
29	SUM	tf.math.reduce_sum
30	POW	tf.math.pow
31	SPLIT	tf.split
32	SOFTMAX	tf.nn.softmax
33	STRIDED_SLICE	tf.strided_slice
34	TRANSPOSE	ttf.transpose
35	SPACE_TO_DEPTH	tf.nn.space_to_depth
36	DEPTH_TO_SPACE	tf.nn.depth_to_space
37	REDUCE_MAX	tf.math.reduce_max
38	Convolution2DTransposeBias	tf.nn.conv2d_transpose, tf.math.add	CUSTOM, MediaPipe
39	LEAKY_RELU	tf.keras.layers.LeakyReLU
40	MAXIMUM	tf.math.maximum
41	MINIMUM	tf.math.minimum
42	MaxPoolingWithArgmax2D	tf.raw_ops.MaxPoolWithArgmax	CUSTOM, MediaPipe
43	MaxUnpooling2D	tf.cast, tf.shape, tf.math.floordiv, tf.math.floormod, tf.ones_like, tf.shape, tf.concat, tf.reshape, tf.transpose, tf.scatter_nd	CUSTOM, MediaPipe
44	GATHER	tf.gather
45	CAST	tf.cast
46	SLICE	tf.slice
47	PACK	tf.stack
48	UNPACK	tf.unstack
49	ARG_MAX	tf.math.argmax
50	EXP	tf.exp
51	TOPK_V2	tf.math.top_k
52	LOG_SOFTMAX	tf.nn.log_softmax
53	L2_NORMALIZATION	tf.math.l2_normalize
54	LESS	tf.math.less
55	LESS_EQUAL	tf.math.less_equal
56	GREATER	tf.math.greater
57	GREATER_EQUAL	tf.math.greater_equal
58	NEG	tf.math.negative
59	WHERE	tf.where
60	SELECT	tf.where
61	SELECT_V2	tf.where
62	PADV2	tf.raw_ops.PadV2
63	SIN	tf.math.sin
64	TILE	tf.tile
65	EQUAL	tf.math.equal
66	NOT_EQUAL	tf.math.not_equal
67	LOG	tf.math.log
68	SQRT	tf.math.sqrt
69	ARG_MIN	tf.math.argmin
70	REDUCE_PROD	tf.math.reduce_prod
71	LOGICAL_OR	tf.math.logical_or
72	LOGICAL_AND	tf.math.logical_and
73	LOGICAL_NOT	tf.math.logical_not
74	REDUCE_MIN	tf.math.reduce_min
75	REDUCE_ANY	tf.math.reduce_any
76	SQUARE	tf.math.square
77	ZEROS_LIKE	tf.zeros_like
78	FILL	tf.fill
79	FLOOR_MOD	tf.math.floormod
80	RANGE	tf.range
81	ABS	tf.math.abs
82	UNIQUE	tf.unique
83	CEIL	tf.math.ceil
84	REVERSE_V2	tf.reverse
85	ADD_N	tf.math.add_n
86	GATHER_ND	tf.gather_nd
87	COS	tf.math.cos
88	RANK	tf.math.rank
89	ELU	tf.nn.elu
90	WHILE	tf.while_loop
91	REVERSE_SEQUENCE	tf.reverse_sequence
92	MATRIX_DIAG	tf.linalg.diag
93	ROUND	tf.math.round
94	NON_MAX_SUPPRESSION_V4	tf.raw_ops.NonMaxSuppressionV4
95	NON_MAX_SUPPRESSION_V5	tf.raw_ops.NonMaxSuppressionV5
96	SCATTER_ND	tf.scatter_nd
97	SEGMENT_SUM	tf.math.segment_sum
98	CUMSUM	tf.math.cumsum
99	BROADCAST_TO	tf.broadcast_to
100	RFFT2D	tf.signal.rfft2d
101	L2_POOL_2D	tf.square, tf.keras.layers.AveragePooling2D, tf.sqrt
102	LOCAL_RESPONSE_NORMALIZATION	tf.nn.local_response_normalization
103	RELU_N1_TO_1	tf.minimum, tf.maximum
104	SPLIT_V	tf.raw_ops.SplitV
105	MATRIX_SET_DIAG	tf.linalg.set_diag
106	SHAPE	tf.shape

2. Environment

Python3.6+
TensorFlow v2.4.0+ or tf-nightly
TensorFlow Lite v2.4.1 with MediaPipe Custom OP, FlexDelegate and XNNPACK enabled
- Add a custom OP to the TFLite runtime to build the whl installer (for Python), MaxPoolingWithArgmax2D, MaxUnpooling2D, Convolution2DTransposeBias
flatc v1.12.0

3. Setup

To install using the Python Package Index (PyPI), use the following command.

$ pip3 install tflite2tensorflow --upgrade

Or, To install with the latest source code of the main branch, use the following command.

$ pip3 install git+https://github.com/PINTO0309/tflite2tensorflow --upgrade

Installs a customized TensorFlow Lite runtime with support for MediaPipe Custom OP, FlexDelegate, and XNNPACK. If tflite_runtime does not install properly, please follow the instructions in the next article to build a custom build in the environment you are using. Add a custom OP to the TFLite runtime to build the whl installer (for Python), MaxPoolingWithArgmax2D, MaxUnpooling2D, Convolution2DTransposeBias

$ sudo pip3 uninstall tensorboard-plugin-wit tb-nightly tensorboard \
                      tf-estimator-nightly tensorflow-gpu \
                      tensorflow tf-nightly tensorflow_estimator tflite_runtime -y

### Customized version of TensorFlow Lite installation
$ sudo gdown --id 1RWZmfFgtxm3muunv6BSf4yU29SKKFXIh
$ sudo chmod +x tflite_runtime-2.4.1-py3-none-any.whl
$ sudo pip3 install tflite_runtime-2.4.1-py3-none-any.whl

### Install the full TensorFlow package
$ sudo pip3 install tensorflow==2.4.1
 or
$ sudo pip3 install tf-nightly

### Download flatc
$ flatbuffers/1.12.0/download.sh

### Download schema.fbs
$ wget https://github.com/PINTO0309/tflite2tensorflow/raw/main/schema/schema.fbs

If the downloaded flatc does not work properly, please build it in your environment.

$ git clone -b v1.12.0 https://github.com/google/flatbuffers.git
$ cd flatbuffers && mkdir build && cd build
$ cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release ..
$ make -j$(nproc)

The Windows version of flatc v1.12.0 can be downloaded from here. https://github.com/google/flatbuffers/releases/download/v1.12.0/flatc_windows.zip

4. Usage / Execution sample

4-1. Command line options

usage: tflite2tensorflow [-h] --model_path MODEL_PATH --flatc_path
                         FLATC_PATH --schema_path SCHEMA_PATH
                         [--model_output_path MODEL_OUTPUT_PATH]
                         [--output_pb OUTPUT_PB]
                         [--output_no_quant_float32_tflite OUTPUT_NO_QUANT_FLOAT32_TFLITE]
                         [--output_weight_quant_tflite OUTPUT_WEIGHT_QUANT_TFLITE]
                         [--output_float16_quant_tflite OUTPUT_FLOAT16_QUANT_TFLITE]
                         [--output_integer_quant_tflite OUTPUT_INTEGER_QUANT_TFLITE]
                         [--output_full_integer_quant_tflite OUTPUT_FULL_INTEGER_QUANT_TFLITE]
                         [--output_integer_quant_type OUTPUT_INTEGER_QUANT_TYPE]
                         [--string_formulas_for_normalization STRING_FORMULAS_FOR_NORMALIZATION]
                         [--calib_ds_type CALIB_DS_TYPE]
                         [--ds_name_for_tfds_for_calibration DS_NAME_FOR_TFDS_FOR_CALIBRATION]
                         [--split_name_for_tfds_for_calibration SPLIT_NAME_FOR_TFDS_FOR_CALIBRATION]
                         [--download_dest_folder_path_for_the_calib_tfds DOWNLOAD_DEST_FOLDER_PATH_FOR_THE_CALIB_TFDS]
                         [--tfds_download_flg TFDS_DOWNLOAD_FLG]
                         [--output_tfjs OUTPUT_TFJS]
                         [--output_tftrt OUTPUT_TFTRT]
                         [--output_coreml OUTPUT_COREML]
                         [--output_edgetpu OUTPUT_EDGETPU]
                         [--replace_swish_and_hardswish REPLACE_SWISH_AND_HARDSWISH]
                         [--optimizing_hardswish_for_edgetpu OPTIMIZING_HARDSWISH_FOR_EDGETPU]
                         [--replace_prelu_and_minmax REPLACE_PRELU_AND_MINMAX]

optional arguments:
  -h, --help            show this help message and exit
  --model_path MODEL_PATH
                        input tflite model path (*.tflite)
  --flatc_path FLATC_PATH
                        flatc file path (flatc)
  --schema_path SCHEMA_PATH
                        schema.fbs path (schema.fbs)
  --model_output_path MODEL_OUTPUT_PATH
                        The output folder path of the converted model file
  --output_pb OUTPUT_PB
                        .pb output switch
  --output_no_quant_float32_tflite OUTPUT_NO_QUANT_FLOAT32_TFLITE
                        float32 tflite output switch
  --output_weight_quant_tflite OUTPUT_WEIGHT_QUANT_TFLITE
                        weight quant tflite output switch
  --output_float16_quant_tflite OUTPUT_FLOAT16_QUANT_TFLITE
                        float16 quant tflite output switch
  --output_integer_quant_tflite OUTPUT_INTEGER_QUANT_TFLITE
                        integer quant tflite output switch
  --output_full_integer_quant_tflite OUTPUT_FULL_INTEGER_QUANT_TFLITE
                        full integer quant tflite output switch
  --output_integer_quant_type OUTPUT_INTEGER_QUANT_TYPE
                        Input and output types when doing Integer Quantization
                        ('int8 (default)' or 'uint8')
  --string_formulas_for_normalization STRING_FORMULAS_FOR_NORMALIZATION
                        String formulas for normalization. It is evaluated by
                        Python's eval() function. Default: '(data -
                        [127.5,127.5,127.5]) / [127.5,127.5,127.5]'
  --calib_ds_type CALIB_DS_TYPE
                        Types of data sets for calibration. tfds or
                        numpy(Future Implementation)
  --ds_name_for_tfds_for_calibration DS_NAME_FOR_TFDS_FOR_CALIBRATION
                        Dataset name for TensorFlow Datasets for calibration.
                        https://www.tensorflow.org/datasets/catalog/overview
  --split_name_for_tfds_for_calibration SPLIT_NAME_FOR_TFDS_FOR_CALIBRATION
                        Split name for TensorFlow Datasets for calibration.
                        https://www.tensorflow.org/datasets/catalog/overview
  --download_dest_folder_path_for_the_calib_tfds DOWNLOAD_DEST_FOLDER_PATH_FOR_THE_CALIB_TFDS
                        Download destination folder path for the calibration
                        dataset. Default: $HOME/TFDS
  --tfds_download_flg TFDS_DOWNLOAD_FLG
                        True to automatically download datasets from
                        TensorFlow Datasets. True or False
  --output_tfjs OUTPUT_TFJS
                        tfjs model output switch
  --output_tftrt OUTPUT_TFTRT
                        tftrt model output switch
  --output_coreml OUTPUT_COREML
                        coreml model output switch
  --output_edgetpu OUTPUT_EDGETPU
                        edgetpu model output switch
  --replace_swish_and_hardswish REPLACE_SWISH_AND_HARDSWISH
                        [Future support] Replace swish and hard-swish with
                        each other
  --optimizing_hardswish_for_edgetpu OPTIMIZING_HARDSWISH_FOR_EDGETPU
                        Optimizing hardswish for edgetpu
  --replace_prelu_and_minmax REPLACE_PRELU_AND_MINMAX
                        Replace prelu and minimum/maximum with each other

4-2. Step 1 : Generating saved_model and FreezeGraph (.pb)

$ tflite2tensorflow \
  --model_path segm_full_v679.tflite \
  --flatc_path ./flatc \
  --schema_path schema.fbs \
  --output_pb True

$ tflite2tensorflow \
  --model_path segm_full_v679.tflite \
  --flatc_path ./flatc \
  --schema_path schema.fbs \
  --output_pb True \
  --optimizing_hardswish_for_edgetpu True

4-3. Step 2 : Generation of quantized tflite, TFJS, TF-TRT, EdgeTPU, and CoreML

$ tflite2tensorflow \
  --model_path segm_full_v679.tflite \
  --flatc_path ./flatc \
  --schema_path schema.fbs \
  --output_no_quant_float32_tflite True \
  --output_weight_quant_tflite True \
  --output_float16_quant_tflite True \
  --output_integer_quant_tflite True \
  --string_formulas_for_normalization 'data / 255.0' \
  --output_tfjs True \
  --output_coreml True \
  --output_tftrt True

$ tflite2tensorflow \
  --model_path segm_full_v679.tflite \
  --flatc_path ./flatc \
  --schema_path schema.fbs \
  --output_no_quant_float32_tflite True \
  --output_weight_quant_tflite True \
  --output_float16_quant_tflite True \
  --output_integer_quant_tflite True \
  --output_edgetpu True \
  --string_formulas_for_normalization 'data / 255.0' \
  --output_tfjs True \
  --output_coreml True \
  --output_tftrt True

5. Sample image

This is the result of converting MediaPipe's Meet Segmentation model (segm_full_v679.tflite / Float16 / Google Meet) to saved_model and then reconverting it to Float32 tflite. Replace the GPU-optimized Convolution2DTransposeBias layer with the standard TransposeConv and BiasAdd layers in a fully automatic manner. The weights and biases of the Float16 Dequantize layer are automatically back-quantized to Float32 precision. The generated saved_model in Float32 precision can be easily converted to Float16, INT8, EdgeTPU, TFJS, TF-TRT, CoreML, ONNX, and OpenVINO.

Before	After

Comments

The same generated IR gives different results on CPU and MYRIAD
1. OS Ubuntu 18.04

2. OS Architecture x86_64

3. Version of OpenVINO 2021.2.185

4. Version of tflite2tensorflow 1.8.0

11. URL or source code for simple inference testing code: https://github.com/geaxgx/openvino_blazepose

12. Issue Details

Hi Katsuya, I would like to have your opinion on the following problem: I have used tflite2tensorflow 1.8.0 to convert the new version of mediapipe Blazepose models (mediapipe version 0.8.4). In this new version, now we have 3 pose landmark models (full, lite and heavy) and one common pose detection model. Then I try to test my code BlazeposeOpenvino.py with each model first on CPU then on MYRIAD (OAK-D). Everything seems to work great except when I run the heavy model on the MYRIAD. For instance, below is the outuput of the heavy model running on the CPU (which looks accurate): And below is the output of the same heavy model running on the MYRIADX : We can see the skeleton is kind of distorded. Actually, in many cases, with other images, we don't even have a skeleton drawn because the score given by the model is too low.

Do you have an idea of what the problem is ? The heavy model is much bigger (27Mo for the bin fle) than the other models. It takes about 30s to load on the MyriadX. But I guess the size is still acceptable otherwise I would get some error messages.

In case, you want to reproduce the problem:

# Clone my repo git clone https://github.com/geaxgx/openvino_blazepose.git cd openvino_blazepose # Start your tflite2tensorflow docker ./docker_tflite2tensorflow.sh cd workdir/models # In my repo, there are only the FP32 IR version of the models, so we need to download the original tflite file # and then convert it using tflite2tensorflow. All is done with the following command: ./get_and_convert_heavy.sh # Exit docker container exit # To test with the heavy model running on the CPU : python BlazeposeOpenvino.py --lm_xml models/pose_landmark_heavy_FP16.xml -i img/yoga.jpg # To test on the MYRIAD python BlazeposeOpenvino.py --lm_xml models/pose_landmark_heavy_FP16.xml -i img/yoga.jpg --lm_device MYRIAD

You can test also with the image img/yoga2.jpg (no skeleton detected).

Thank you.
opened by geaxgx 37
Palm detectin model: tflite and openvino IR model give different ouputs

1. OS Ubuntu 18.04

2. OS Architecture x86_64

3. Version of OpenVINO 2021.2.185 (the one from your dockerfile)

4. Version of TensorFlow e.g. v2.4.1 (the one from your dockerfile)

9. Download URL for .tflite : https://github.com/google/mediapipe/blob/master/mediapipe/modules/palm_detection/palm_detection.tflite

Hi Pinto ! First of all, I want to thank you for your last version of tflite2tensorflow. The dockerfile will surely make users life much easier !

I have installed and run the docker image of tflite2tensorflow to convert the Mediapipe palm detection model (see link above) into Openvino IR format. This model takes 128x128 images as input, whereas the previous model took 256x256 images. When running the FP32 model on my cpu, I noticed that sometimes the palm bounding box seemed a bit off. When comparing with the output from the original tflite model, we can see the bounding boxes are not the same: Below is the output from the FP32 openvino model:

Below is the output from the tflite model:

Note that if I compare the outputs of the older 256x256 models, there are no differences between tflite and Openvino versions.

Do you have an idea of what could explain the different ouputs ? Using Netron, I can see that the new tflite model now uses Prelu and ResizeBilinear that were not used in the older model. I don't see how Prelu could cause differences in the conversion process, but ResizeBilinear may be trickier (converted into Interpolate). Do you have any thoughts about that ?

Thanks for your help! I would like to use the new model, which is much faster than the previous version.

I can send you the code to reproduce the problem if you want.
bug feature_request

opened by geaxgx 19
ValueError: Dimension size, given by scalar input 1 must be in range [-1, 1)

I am trying to convert these tflite models: https://github.com/breizhn/DTLN-aec/tree/main/pretrained_models The command I ran was: tflite2tensorflow --model_path dtln_aec_128_2.tflite --flatc_path ../flatc --schema_path ../schema.fbs --output_pb But ran into this error:

ValueError: Dimension size, given by scalar input 1 must be in range [-1, 1) for '{{node split_functional_5/lstm_6/lstm_cell_6/StatefulPartitionedCall/split}} = Split[T=DT_FLOAT, num_split=4](split_functional_5/lstm_6/lstm_cell_6/StatefulPartitionedCall/split/split_dim, BiasAdd_functional_5/lstm_6/lstm_cell_6/StatefulPartitionedCall/BiasAdd)' with input shapes: [], [512] and with computed input tensors: input[0] = <1>.

Tried with both pip installation and docker version. Is it a bug or something that not supported?

opened by SaneBow 14
The shape of the output layer is different from the result of the tensorflow2onnx transformation.
Issue Type

Bug

OS

Ubuntu

OS architecture

x86_64

Programming Language

Python

Framework

ONNX

Download URL for tflite file

VertexAI Auto ML classification TFlite Format model

Convert Script

●tflite2tensorflow

docker run -it --rm --gpus all -v pwd:/home/user/workdir ghcr.io/pinto0309/tflite2tensorflow:latest

tflite2tensorflow
--model_path model.tflite
--flatc_path ../flatc
--schema_path ../schema.fbs
--output_pb
--optimizing_for_openvino_and_myriad
--rigorous_optimization_for_myriad

tflite2tensorflow
--model_path model.tflite
--flatc_path ../flatc
--schema_path ../schema.fbs
--output_onnx
--onnx_opset 13
--output_openvino_and_myriad

●tensorflow2onnx pip install git+https://github.com/onnx/tensorflow-onnx

python -m tf2onnx.convert --opset 13 --tflite model.tflite --output model.onnx --dequantize

Description

I'm trying to convert the attached file from tflite to onnx. (Eventually I want to run it in myriad). In the conversion source tflite, the input to sortmax is [1×8], but in tflite2tensorflow, it is [7×7×8]. If you try tensorflow2tflite, the input to sortmax becomes [1×8] as in tflite. I think [1×8] is correct because it is an 8-class classification model.

[tflite]

[tflite2tensorflow(savedmodel and onnx)]

[tensorflow2onnx]

Relevant Log Output

None.

Source code for simple inference testing code

No response
opened by ichigosyakure 8
converted mediapipe model pose_detection not work
Hi , thanks for your great work.

recently, I am working on pose estimation with mediapipe. I convert the pose_detection.tflite model to onnx with your tflite2tensorflow, the coversion processing is ok, the log info shows that the converison is success. But when I use the converted .onnx model the outpt value, seems not correct, and is different from what the orginal .tflite model dose.

In the original tflite model, the max confidence value of bounxing box is 0.9, but using the converted model , the max value of bounxing box is only 0.078, which is not correct. And I also tried the model you've already converted, the result is also not right. Is there something wrong in my step or code?

1. WIndows10

2. x86_64

3. Version of OpenVINO : none

4. Version of TensorFlow e.g. v2.6.0

5. Version of TensorRT : none

6. Version of TFJS : none

7. Version of coremltools : none

8. Version of ONNX : 1.10.1

9. Download URL for .tflite IR model

10. URL of the repository from which the transformed model was taken : https://github.com/google/mediapipe/tree/master/mediapipe/modules/pose_detection

11. URL or source code for simple inference testing code

def image_preprocess(img): img = cv2.resize(img, dsize=(224, 224), interpolation=cv2.INTER_AREA) img = img.astype("float32") img /= 255.0 print(img.shape) img.resize((1, 224, 224, 3)) return img def inference(img): # Test the model on random input data. input_shape = input_details[0]['shape'] input_data = np.array(img, dtype=np.float32) interpreter.set_tensor(input_details[0]['index'], input_data) interpreter.invoke() # The function `get_tensor()` returns a copy of the tensor data. # Use `tensor()` in order to get a pointer to the tensor. output_data = interpreter.get_tensor(output_details[0]['index']) output_data1 = interpreter.get_tensor(output_details[1]['index']) result = [output_data, output_data1] print("result[0] shape:", result[0].shape) # (1, 2254, 12) print("result[1] shape:", result[1].shape) # (1, 2254, 1) return result model = "model_float32.onnx" # load model session = onnxruntime.InferenceSession(model, None) input_name = session.get_inputs()[0].name output_name = session.get_outputs()[0].name print(input_name) print(output_name)

12. Issue Details
bug
opened by Jerryzhangzhao 8
Densify ?

1. Ubuntu 18.04

2. OS Architecture x86_64

3. OpenVINO e.g. 2021.4.582

9. Download URL for .tflite IR model https://github.com/google/mediapipe/blob/master/mediapipe/modules/pose_detection/pose_detection.tflite

Hi @PINTO0309 ! New mediapipe version 0.8.6 comes with new models for Blazepose (that's a never ending story :-) The size of the pose detection model (link above) has been significantly reduced (from ~7.5MB to ~3MB) but unfortunately the model is using a layer named Densify that is not implemented in tflite2tensorflow. I guess it is a relatively new layer. When trying to visualize its data in Netron, I get an "Invalid tensor data size" message.

Do you think Densify can be easily implemented in your tools ? Note that it is not something I am eagerly waiting for since I can do without it by using the previous version of the pose detection model.
enhancement feature_request

opened by geaxgx 8
I was trying to convert hair_segmentation.tflite in google colab. and getting following error.

output json command = /content/flatbuffers/build/flatc -t --strict-json --defaults-json -o . /content/flatbuffers/build/schema.fbs -- /content/hair_segmentation.tflite Traceback (most recent call last): File "/usr/local/bin/tflite2tensorflow", line 2882, in main() File "/usr/local/bin/tflite2tensorflow", line 2556, in main ops, op_types = parse_json(jsonfile_path) File "/usr/local/bin/tflite2tensorflow", line 247, in parse_json j = json.load(open(jsonfile_path)) FileNotFoundError: [Errno 2] No such file or directory: './/content/hair_segmentation.json'
bug

opened by soham24 8
Add option to optimize tf.math.reduce_prod to Myriad (OAK)
Issue Type

Feature Request

OS

Other

OS architecture

Other

Programming Language

Other

Framework

OpenVINO, Myriad Inference Engine

Download URL for tflite file

None

Convert Script

None

Description

Replace tf.math.reduce_prod with tf.math.multiply https://www.tensorflow.org/api_docs/python/tf/math/reduce_prod

https://github.com/PINTO0309/PINTO_model_zoo/tree/main/282_face_landmark_with_attention

https://github.com/iwatake2222/play_with_tflite/tree/master/pj_tflite_face_landmark_with_attention

Relevant Log Output

None

Source code for simple inference testing code

No response
enhancement feature_request
opened by PINTO0309 7

Converted mediapipe palm detection coreml model cannot be deployed on IOS app

Issue Type

Bug

OS

Mac OS

OS architecture

x86_64

Programming Language

Python

Framework

CoreML

Download URL for tflite file

https://github.com/google/mediapipe/blob/master/mediapipe/modules/palm_detection/palm_detection_full.tflite

Convert Script

docker run -it --rm \
  -v `pwd`:/home/user/workdir \
  ghcr.io/pinto0309/tflite2tensorflow:latest

tflite2tensorflow \
  --model_path palm_detection_full.tflite \
  --flatc_path ../flatc \
  --schema_path ../schema.fbs \
  --output_pb

tflite2tensorflow \
  --model_path palm_detection_full.tflite \
  --flatc_path ../flatc \
  --schema_path ../schema.fbs \
  --output_no_quant_float32_tflite \
  --output_dynamic_range_quant_tflite \
  --output_weight_quant_tflite \
  --output_float16_quant_tflite \
  --output_integer_quant_tflite \
  --string_formulas_for_normalization 'data / 255.0' \
  --output_tfjs \
  --output_coreml \
  --output_tftrt_float32 \
  --output_tftrt_float16 \
  --output_onnx \
  --onnx_opset 13 \
  --output_openvino_and_myriad

Description

when I deployed the converted mp palm detection coreml model on IOS app, I got error like:

2022-02-15 16:31:50.577312+0000 MLModelCamera[12602:4637828] [espresso] [Espresso::handle_ex_plan] exception=Espresso exception: "Generic error": [Exception from layer 240: model_1/model/add_24/add]Espresso exception: "Invalid blob shape": elementwise_kernel_cpu: Cannot broadcast [12, 2, 1, 256, 1] and [12, 1, 1, 256, 1] status=-1

seems like the resizeBilinear op causes this problem. Is there any way to fix this issue? Thanks in advance.

The related code in tflite2tensorlfow.py is:

        elif op_type == 'RESIZE_BILINEAR':
            input_tensor = tensors[op['inputs'][0]]
            size_detail = interpreter._get_tensor_details(op['inputs'][1])
            size = interpreter.get_tensor(size_detail['index'])
            size_height = size[0]
            size_width  = size[1]

            options = op['builtin_options']
            align_corners = options['align_corners']
            half_pixel_centers = options['half_pixel_centers']

            def upsampling2d_bilinear(x, size_height, size_width, align_corners, half_pixel_centers):
                if optimizing_for_edgetpu_flg:
                    return tf.image.resize_bilinear(x, (size_height, size_width))
                else:
                    if optimizing_for_openvino_and_myriad:
                        if half_pixel_centers:
                            return tf.image.resize_bilinear(
                                x,
                                (size_height, size_width),
                                align_corners=False,
                                half_pixel_centers=half_pixel_centers
                            )
                        else:
                            return tf.image.resize_bilinear(
                                x,
                                (size_height, size_width),
                                align_corners=True,
                                half_pixel_centers=half_pixel_centers
                            )
                    else:
                        return tfv2.image.resize(
                            x,
                            [size_height, size_width],
                            method='bilinear'
                        )

            output_detail = interpreter._get_tensor_details(op['outputs'][0])
            lambda_name = get_op_name(output_detail['name']) + '_lambda'
            output_tensor_lambda = tf.keras.layers.Lambda(
                upsampling2d_bilinear,
                arguments={'size_height': size_height,
                            'size_width': size_width,
                            'align_corners': align_corners,
                            'half_pixel_centers': half_pixel_centers},
                name=lambda_name
            )(input_tensor)
            output_tensor = tf.identity(
                output_tensor_lambda,
                name=get_op_name(output_detail['name'])
            )
            tensors[output_detail['index']] = output_tensor

Relevant Log Output

2022-02-15 16:31:50.577312+0000 MLModelCamera[12602:4637828] [espresso] [Espresso::handle_ex_plan] exception=Espresso exception: "Generic error": [Exception from layer 240: model_1/model/add_24/add]Espresso exception: "Invalid blob shape": elementwise_kernel_cpu: Cannot broadcast [12, 2, 1, 256, 1] and [12, 1, 1, 256, 1] status=-1

Source code for simple inference testing code

No response

opened by TaoZappar 7

Latest docker image: error: unrecognized arguments

Hello Pinto, I am following the tutorial form here: https://github.com/geaxgx/openvino_hand_tracker Can it be that in the latest docker version the API has changed?

This is what I do: marco@CHROTZ:/tmp/depthai_hand_tracker$ docker run --gpus all -it --rm
-v pwd:/workspace/resources
-e LOCAL_UID=$(id -u $USER)
-e LOCAL_GID=$(id -g $USER)
pinto0309/tflite2tensorflow:latest bash

NVIDIA Release 20.09 (build 15985252)

NVIDIA TensorRT 7.1.3 (c) 2016-2020, NVIDIA CORPORATION. All rights reserved. Container image (c) 2020, NVIDIA CORPORATION. All rights reserved.

https://developer.nvidia.com/tensorrt

To install Python sample dependencies, run /opt/tensorrt/python/python_setup.sh

To install open source parsers, plugins, and samples, run /opt/tensorrt/install_opensource.sh. See https://github.com/NVIDIA/TensorRT for more information.

error: XDG_RUNTIME_DIR not set in the environment. [setupvars.sh] OpenVINO environment initialized

wget https://github.com/google/mediapipe/blob/master/mediapipe/modules/hand_landmark/hand_landmark.tflite wget https://github.com/google/mediapipe/blob/master/mediapipe/modules/palm_detection/palm_detection.tflite

tflite2tensorflow --model_path ./hand_landmark.tflite --model_output_path palm_detection --flatc_path /home/user/flatc --schema_path /home/user/schema.fbs --output_pb True tflite2tensorflow: error: unrecognized arguments: True

tflite2tensorflow --model_path ./hand_landmark.tflite --model_output_path palm_detection --flatc_path /home/user/flatc --schema_path /home/user/schema.fbs --output_pb
output json command = /home/user/flatc -t --strict-json --defaults-json -o . /home/user/schema.fbs -- ./hand_landmark.tflite /home/user/flatc: error: binary "./hand_landmark.tflite" does not have expected file_identifier "TFL3", use --raw-binary to read this file anyway.

Thanks Marco
enhancement feature_request

opened by MaHoef 7
KeyError: 'operator_codes'

Running tflite2tensorflow in docker container, against tflite model generated in the AutoML Vision service in google cloud, produces:

sh-5.0$ tflite2tensorflow \

--model_path model.tflite
--flatc_path ../flatc
--schema_path ../schema.fbs
--output_pb
--optimizing_for_openvino_and_myriad Traceback (most recent call last): File "/usr/local/bin/tflite2tensorflow", line 6201, in main() File "/usr/local/bin/tflite2tensorflow", line 5592, in main ops, json_tensor_details, op_types, full_json = parse_json(jsonfile_path) File "/usr/local/bin/tflite2tensorflow", line 265, in parse_json op_types = [v['builtin_code'] for v in j['operator_codes']] KeyError: 'operator_codes'

The tflite output from AutoML Vision was three files: model.tflite, tflite_metadata.json, and dict.txt (which contains the list of labels).

I first received the error that it could not find model.json, so I renamed tflite_metadata.json to model.json and thus the error above.

Here is contents of model.json (tflite_metadata.json) - obviously it does not include operator codes.

{ "inferenceType": "QUANTIZED_UINT8", "inputShape": [ 1, 320, 320, 3 ], "inputTensor": "normalized_input_image_tensor", "maxDetections": 40, "outputTensorRepresentation": [ "bounding_boxes", "class_labels", "class_confidences", "num_of_boxes" ], "outputTensors": [ "TFLite_Detection_PostProcess", "TFLite_Detection_PostProcess:1", "TFLite_Detection_PostProcess:2", "TFLite_Detection_PostProcess:3" ] }

Is tflite2tensorflow expecting a different set of files?

opened by mtyeager 4
The UNIDIRECTIONAL_SEQUENCE_LSTM layer is not yet implemented.
OS you are using: MacOS 11.4

Version of TensorFlow: v2.5.0

Environment: Docker

Under tf 2.5.0, I converted my pre-trained model from saved_model to tflite.

Afterwards, in Docker container, when I was converting this tflite model to pb format using tflite2tensorflow, the following error occured:

ERROR: The UNIDIRECTIONAL_SEQUENCE_LSTM layer is not yet implemented.

(In this experiment, I did not perform quantization/optimization, but later on I do plan to use tflite to quantize my model that is to be saved as .tflite, which is why I did not directly convert saved_model to pb)
enhancement feature_request
opened by peiwenhuang27 3