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import re
from flask import request, jsonify, current_app
from PIL import Image, UnidentifiedImageError
from io import BytesIO
import base64
import requests
from ..services.panServices.panOcr import process_results
import io
def ocrPan(mode, session):
try:
print("API HIT ************* PANOCR")
data = request.get_json()
if not data:
return jsonify({"error": "Invalid request payload"}), 400
if mode == "prod":
if not data.get('image'):
return jsonify({"error": "Image data/buffer is required"}), 400
#removing 'data:image/png,base64 ' from buffer.
imgBuffer = data.get('image')
imgBuffer = re.sub("^data:image/.+;base64,", "", imgBuffer)
# Adjust base64 string padding
if len(imgBuffer) % 4:
imgBuffer += '=' * (4 - len(imgBuffer) % 4)
try:
img_data = base64.b64decode(imgBuffer)
img = Image.open(BytesIO(img_data))
img.verify() # Verify image format
print(img, "img")
img = Image.open(io.BytesIO(img_data)) # Re-open image after verification
except (base64.binascii.Error, ValueError) as decode_err:
return jsonify({"error": f"Image decoding failed: {str(decode_err)}"}), 400
except UnidentifiedImageError:
return jsonify({"error": "Unable to identify image format."}), 400
elif mode == "dev":
if not data.get('imgUrl'):
return jsonify({"error": "Image URL is required"}), 400
img_url = data.get('imgUrl')
response = session.get(img_url)
response.raise_for_status()
img = Image.open(BytesIO(response.content))
print(img, "img")
img.verify() # Verify image format
img = Image.open(BytesIO(response.content)) # Re-open image after verification
else:
return jsonify({"error": "Invalid mode configuration"}), 500
# Check image format
if img.format not in ['JPEG', 'JPG', 'PNG']:
return jsonify({"error": "Invalid image format. Only JPG and PNG are supported."}), 400
# Run detection
model = current_app.models.get('panModel')
results = model.predict(source=img, imgsz=680, iou=0.7, augment=True)
# print(results,"model result")
extracted_data = process_results(results, img)
# print(extracted_data, "extracted data")
if extracted_data.get('statusCode') == 400:
return jsonify(extracted_data), 400
return jsonify(extracted_data), 200
except requests.RequestException as req_err:
return jsonify({"error": f"Image download failed: {str(req_err)}"}), 500
except UnidentifiedImageError:
return jsonify({"error": "Unable to identify image format."}), 400
except Exception as e:
current_app.logger.error(f"Unexpected error: {str(e)}")
return jsonify({"error": "An unexpected error occurred on api call."}), 500
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