app.py

import gradio as gr

# try:
#  from PIL import Image
# except ImportError:
#  import Image
import cv2
import pytesseract

sample_img = cv2.imread(r'/content/image.png')

def ocr_core(img):
  text = pytesseract.image_to_string(img)
  return text

def get_grayscale(image):
    return cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)

def remove_noise(image):
    return cv2.medianBlur(image,5)

def thresholding(image):
    return cv2.threshold(image, 0, 255, cv2.THRESH_BINARY + cv2.THRESH_OTSU)[1]

def final_ocr(img):
    gray = get_grayscale(img)
    thresh = thresholding(gray)
    noiseless = remove_noise(thresh)
    return ocr_core(noiseless)

def greet(name):
    return "Hello " + name + "!!"

# iface = gr.Interface(fn=greet, inputs="text", outputs="text")

# iface.launch()
demo = gr.Interface(fn=final_ocr,
                    inputs=gr.inputs.Image(type="pil"),
                    outputs=gr.outputs.Textbox())
demo.launch()