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import cv2
import os
import pytesseract
import gradio as gr
from gradio import Interface, Image, Text
import numpy as np
from PIL import Image
from PIL import UnidentifiedImageError
def process_image(input_image):
try:
# Convert the input image to a NumPy array if it's a PIL Image
if isinstance(input_image, Image.Image):
img = np.array(input_image)
else:
# If it's a file path or file-like object, read it directly with OpenCV
img = cv2.imread(input_image)
# Check that the image is in the expected format
if img is None or img.dtype != np.uint8:
raise Exception("Could not read the image. Please check the image format.")
img = cv2.cvtColor(img, cv2.COLOR_RGB2BGR)
# img = cv2.imdecode(np.fromstring(input_image.read(), np.uint8), cv2.IMREAD_COLOR)
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
ret, thresh1 = cv2.threshold(gray, 0, 255, cv2.THRESH_OTSU | cv2.THRESH_BINARY_INV)
rect_kernel = cv2.getStructuringElement(cv2.MORPH_RECT, (18, 18))
dilation = cv2.dilate(thresh1, rect_kernel, iterations=1)
# Find text lines using connected component analysis
text_lines = []
contours, hierarchy = cv2.findContours(dilation, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
for cnt in contours:
x, y, w, h = cv2.boundingRect(cnt)
text_lines.append((y, y + h, x, x + w))
# Sort text lines by their y-coordinates
text_lines.sort(key=lambda line: line[0])
# Extract text from each line using Tesseract
recognized_text = []
for y_min, y_max, x_min, x_max in text_lines:
cropped_img = img[y_min:y_max, x_min:x_max]
custom_config = r'-l eng+khm --oem 3 --psm 6'
extracted_text = pytesseract.image_to_string(cropped_img, config=custom_config)
recognized_text.append(extracted_text.strip())
# Combine recognized text into a single string
full_text = "\n".join(recognized_text)
# Draw bounding boxes on the image
result_rgb = img.copy()
for y_min, y_max, x_min, x_max in text_lines:
cv2.rectangle(result_rgb, (x_min, y_min), (x_max, y_max), (0, 255, 0), 2)
return full_text, result_rgb
except Exception as e:
return "Could not process the image. Error: " + str(e), None
iface = gr.Interface(
process_image,
inputs=[gr.Image(type="pil", label="Processed Image")],
outputs=[
gr.Text(label="Detected Labels"),
gr.Image(type="pil", label="Processed Image")
],
title="Bank Statement OCR",
# description="Upload an image containing text to perform OCR and see the detected text and image."
flagging_options=["blurry", "incorrect", "other"],)
iface.launch(debug=True , share=True)