app.py

import gradio as gr
import zxingcpp
from PIL import Image

import cv2

def decode(im):
    img = cv2.imread(f'{im}')
    try:
        results = zxingcpp.read_barcodes(img)
        return results[0].text
    except Exception:
        return "QR Code not Detected \nTry using 'Detect by Color'"

def detect_color(im,col):
    #qr_img=Image.open(im).convert("RGBA")
    qr_img=Image.open(im)
    datas = qr_img.getdata()
    newData = []
    h1 = col.strip("#")
    rgb_tup = tuple(int(h1[i:i+2], 16) for i in (0, 2, 4))
    for item in datas:
        if item[0] == rgb_tup[0] and item[1] == rgb_tup[1] and item[2] == rgb_tup[2]:
            newData.append((0,0,0))
        else:
            newData.append(255,255,255)
    qr_img.putdata(newData)
    qr_img.save(f'conv_im.png')
    img = cv2.imread('conv_im.png')
    try:
        results = zxingcpp.read_barcodes(img)
        return results[0].text
    except Exception:
        return "QR Code not Detected \nTry using 'Detect by Color'"
    


with gr.Blocks() as app:
    in_im = gr.Image(label="QR Image to Decode")
    dec_btn = gr.Button("Decode QR")
    text_out = gr.Textbox(label="Decoded Text")    
    choose_color = gr.ColorPicker()
    
    dec_btn.click(decode,in_im,text_out)
app.queue(concurrency_count=10).launch()