Update nonstandard_1D_barcode example

Author: yushulx

examples/official/9.x/nonstandard_1D_barcode/LICENSE

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+# Decoding Nonstandard 1D Barcodes in Python with Dynamsoft Barcode SDK
+This sample demonstrates how to use the [Dynamsoft Barcode Reader SDK](https://www.dynamsoft.com/barcode-reader/overview/) to decode nonstandard 1D barcodes.
+
+## Environment
+Python 3.x
+
+## Prerequisites
+- Obtain a [Dynamsoft Barcode Reader trial license](https://www.dynamsoft.com/customer/license/trialLicense/?product=dcv&package=cross-platform)
+- Install the Dynamsoft Barcode Reader SDK for Python:
+    
+    ```bash
+    pip install dynamsoft-capture-vision-bundle
+    ```
+
+## Getting Started
+
+1. Set the license key in `test.py`:
+
+    ```python
+    error_code, error_message = LicenseManager.init_license(
+        "LICENSE-KEY")
+    ```
+
+2. Define the barcode format and specify the start/stop characters. Below is an example configuration for [Code39](https://en.wikipedia.org/wiki/Code_39):
+
+    ```json
+    "StandardFormat": "BF_CODE_39",
+    "HeadModuleRatio": "131111313",
+    "TailModuleRatio": "131111313"
+    ```
+
+3. After configuring the template file, use the following code to read the barcode:
+
+    ```python
+    error_code, error_message = LicenseManager.init_license("LICENSE-KEY")
+    if error_code != EnumErrorCode.EC_OK and error_code != EnumErrorCode.EC_LICENSE_CACHE_USED:
+        print("License initialization failed: ErrorCode:",
+              error_code, ", ErrorString:", error_message)
+    else:
+        cvr_instance = CaptureVisionRouter()
+    
+        cvr_instance.init_settings_from_file('template_plus.json') # Or template_minus.json 
+
+        result = cvr_instance.capture(
+                cv_image, "") # The empty string means using the default template
+        if result.get_error_code() != EnumErrorCode.EC_OK:
+            print("Error:", result.get_error_code(),
+                    result.get_error_string())
+        else:
+            
+            items = result.get_items()
+            print('Found {} barcodes.'.format(len(items)))
+            for item in items:
+                format_type = item.get_format_string()
+                text = item.get_text()
+                print("Barcode Format:", format_type)
+                print("Barcode Text:", text)
+
+                location = item.get_location()
+                x1 = location.points[0].x
+                y1 = location.points[0].y
+                x2 = location.points[1].x
+                y2 = location.points[1].y
+                x3 = location.points[2].x
+                y3 = location.points[2].y
+                x4 = location.points[3].x
+                y4 = location.points[3].y
+                print("Location Points:")
+                print("({}, {})".format(x1, y1))
+                print("({}, {})".format(x2, y2))
+                print("({}, {})".format(x3, y3))
+                print("({}, {})".format(x4, y4))
+                print("-------------------------------------------------")
+
+                pts = np.array([(x1, y1), (x2, y2), (x3, y3), (x4, y4)], dtype=np.int32).reshape((-1, 1, 2))
+                cv2.drawContours(
+                    cv_image, [pts], 0, (0, 255, 0), 2)
+
+                cv2.putText(cv_image, text, (x1, y1 - 10),
+                            cv2.FONT_HERSHEY_SIMPLEX, 0.5, (0, 0, 255), 2)
+
+            cv2.imshow(
+                "Original Image with Detected Barcodes", cv_image)
+            cv2.waitKey(0)
+            cv2.destroyAllWindows()
+    
+    ```
+
+4. Run the script:
+
+    ```bash
+    python test.py
+    ```
+
+    ![python nonstandard 1D barcode detection](https://www.dynamsoft.com/codepool/img/2020/06/nonstandard-1d-barcode-recognition.png)
+
+## Blog
+[How to Read Nonstandard 1D Barcode with Dynamsoft Barcode SDK](https://www.dynamsoft.com/codepool/read-nonstandard-1d-barcode-barcode-sdk.html)

examples/official/9.x/nonstandard_1D_barcode/README.md

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+dynamsoft-capture-vision-bundle
+opencv-python