python/verify_onnx_model.py

import onnxruntime as ort
import numpy as np

def verify_onnx_model(onnx_model_path):
    # Load the ONNX model
    onnx_session = ort.InferenceSession(onnx_model_path)

    # Display model input details
    input_name = onnx_session.get_inputs()[0].name
    input_shape = onnx_session.get_inputs()[0].shape
    input_type = onnx_session.get_inputs()[0].type
    print(f"Input Name: {input_name}, Shape: {input_shape}, Type: {input_type}")

    # Display model output details
    output_name = onnx_session.get_outputs()[0].name
    output_shape = onnx_session.get_outputs()[0].shape
    output_type = onnx_session.get_outputs()[0].type
    print(f"Output Name: {output_name}, Shape: {output_shape}, Type: {output_type}")

    # Generate a dummy input matching the input shape
    # Assuming input shape is [None, 128, 128, 3], where None is the batch size
    dummy_input = np.random.rand(1, 128, 128, 3).astype(np.float32)

    # Perform inference
    result = onnx_session.run([output_name], {input_name: dummy_input})
    print(f"Inference Result: {result}")

# Path to the ONNX model
onnx_model_path = './model.onnx'

verify_onnx_model(onnx_model_path)