barcode-reader-python-samples/Samples/parameter_tuner.py at master · Dynamsoft/barcode-reader-python-samples · GitHub

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import time

import os

import dynamsoft_barcode_reader_bundle

from pathlib import Path

from dynamsoft_barcode_reader_bundle import *

BASE_DIR = Path(__file__).resolve().parent

PKG_DIR = Path(dynamsoft_barcode_reader_bundle.__file__).resolve().parent

class LoopInfo():

def __init__(self,cvr_instance : CaptureVisionRouter, image_path: str = None,matched_template: str = None, description: str = None, template_path: str = None):

self.cvr_instance = cvr_instance

self.image_path = image_path

self.template_path = template_path

self.matched_template = matched_template

self.description = description

sample_images = {

"1": ("Images/blurry.png", "ReadBlurry1DBarcode.json", "Suitable for blurred 1D barcode"),

"2": ("Images/GeneralBarcodes.png", "ReadMultipleBarcode.json", "Suitable for multiple barcodes"),

"3": ("Images/inverted-barcode.png", "ReadInvertedBarcode.json", "Suitable for colour inverted barcode"),

"4": ("Images/DPM.png", "ReadDPM.json", "Suitable for Direct Part Marking barcode"),

"5": ("Images/EAN-13.jpg", "ReadOneDRetail.json", "Suitable for retail 1D barcode such as EAN13, UPC-A"),

"6": ("Images/OneDIndustrial.jpg", "ReadOneDIndustrial.json", "Suitable for industrial 1D barcode such as Code128, Code39"),

}

def select_image():

print("Available Sample Scenarios:")

print("[1] Blurry 1D barcode")

print("[2] Multiple barcodes")

print("[3] Colour Inverted Barcode")

print("[4] Direct Part Marking (DPM)")

print("[5] Retail 1D barcode")

print("[6] Industrial 1D barcode")

print("[7] Custom Image")

while True:

choice = input("\nEnter the number of the image to test, or provide a full path to your own image:\n> ").strip(' \'"')

image_path, matched_template, description = None, None, None

if choice in sample_images:

image_path, matched_template, description = sample_images[choice]

image_path = str(BASE_DIR.parent / image_path)

elif choice == "7":

image_path = input("Enter full path to your custom image:\n> ").strip(' \'"')

if not os.path.isfile(image_path):

print("Invalid path input, please try again.")

continue

else:

image_path = choice

if not os.path.isfile(image_path):

print("Invalid path input, please try again.")

continue

image_path = os.path.abspath(image_path)

return image_path, matched_template, description

def select_template(matched_template, description):

print("\nSelect template for this image:")

options = []

if matched_template:

options.append((matched_template, description))

options.append(("ReadBarcodes_Default.json", "General purpose settings"))

options.append(("Custom template", "Use your own template"))

for idx, (path, desc) in enumerate(options, start=1):

print(f"[{idx}] {path} ({desc})")

print("\nEnter the number of the template to test, or provide a full path to your own template:")

while True:

choice = input("> ").strip(' \'"')

selected_path = None

if choice.isdigit():

index = int(choice) - 1

if 0 <= index < len(options):

selected_path = options[index][0]

if selected_path == options[-1][0]:

selected_path = input("Enter full path to your custom template:\n> ").strip(' \'"')

elif selected_path == options[-2][0]:

selected_path = str(PKG_DIR/"Templates"/"DBR-PresetTemplates.json")

else:

selected_path = str(BASE_DIR.parent/"CustomTemplates"/selected_path)

else:

print("Invalid choice, please try again.")

continue

else:

selected_path = choice

if selected_path:

selected_path = os.path.abspath(selected_path)

if not os.path.isfile(selected_path):

print("Invalid template path, please try again.")

continue

return selected_path

else:

print("Invalid input, please try again.")

def run(cvr_instance:CaptureVisionRouter, image_path:str, template_path:str):

print("\nRunning with:")

print(f"Image: {image_path}")

print(f"Template: {template_path}")

start_time = time.time()

result_array = cvr_instance.capture_multi_pages(image_path,"")

elapsed_ms = int((time.time() - start_time) * 1000)

results = result_array.get_results()

if results is None or len(results) == 0:

print("No results.")

else:

for i, result in enumerate(results):

page_number = i + 1

total_pages = 0

tag = result.get_original_image_tag()

if isinstance(tag, FileImageTag):

page_number = tag.get_page_number() + 1

total_pages = tag.get_total_pages()

print(f"\nResult{' Page-' + str(page_number) if total_pages > 0 else ''}:")

error_code = result.get_error_code()

if error_code != EnumErrorCode.EC_OK and error_code != EnumErrorCode.EC_UNSUPPORTED_JSON_KEY_WARNING:

print(f"Error: {error_code}, {result.get_error_string()}")

barcode_result = result.get_decoded_barcodes_result()

if barcode_result is not None:

items = barcode_result.get_items()

for j, item in enumerate(items):

if isinstance(item, BarcodeResultItem):

print(f"Barcode result [{i+1}-{j+1}]: {item.get_text()} (Format: {item.get_format_string()})")

else:

print("No barcode detected.")

print(f"Time used: {elapsed_ms} ms...\n")

def loop_inner(loop_info : LoopInfo, get_image: bool = True, get_template: bool = True):

if get_image:

loop_info.image_path, loop_info.matched_template, loop_info.description = select_image()

if get_template:

loop_info.template_path = select_template(loop_info.matched_template, loop_info.description)

error_code, error_string = loop_info.cvr_instance.init_settings_from_file(loop_info.template_path)

if error_code != EnumErrorCode.EC_OK and error_code != EnumErrorCode.EC_UNSUPPORTED_JSON_KEY_WARNING:

print("Init template failed:", error_code, error_string)

return

run(loop_info.cvr_instance, loop_info.image_path, loop_info.template_path)

def main():

print("Welcome to ParameterTuner!\n")

# Initialize license.

# The string "DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9" here is a free public trial license. Note that network connection is required for this license to work.

# You can also request a 30-day trial license in the customer portal: https://www.dynamsoft.com/customer/license/trialLicense?product=dbr&utm_source=samples&package=python

error_code, error_string = LicenseManager.init_license("DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9")

if error_code != EnumErrorCode.EC_OK and error_code != EnumErrorCode.EC_LICENSE_WARNING:

print("License initialization failed: ErrorCode:", str(error_code) + ", ErrorString:", error_string)

loop_info = LoopInfo(CaptureVisionRouter())

loop_inner(loop_info)

while True:

print("What would you like to do next?")

print("[1] Try a different template")

print("[2] Load another image")

print("[3] Exit")

choice = input("Enter your choice:\n> ").strip()

if choice == "1":

loop_inner(loop_info, get_image=False, get_template=True)

elif choice == "2":

loop_inner(loop_info, get_image=True, get_template=False)

elif choice == "3":

print("Thank you for using ParameterTuner!")

break

else:

print("Invalid input. Returning to main menu.")

if __name__ == "__main__":

main()

barcode-reader-python-samples/Samples/parameter_tuner.py at master · Dynamsoft/barcode-reader-python-samples · GitHub

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