Forums

UPLOAD_FOLDER = './uploads'
ALLOWED_EXTENSIONS = set(['png', 'jpg', 'PNG', 'JPG'])
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
app.config['SECRET_KEY'] = os.urandom(24)

def allowed_file(filename):
    return '.' in filename and \
        filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS

@app.route('/')
def index():
    return render_template('index.html')

@app.route('/send', methods=['GET', 'POST'])
def send():
if request.method == 'POST':
    img_file = request.files['img_file']
    if img_file and allowed_file(img_file.filename):
        filename = secure_filename(img_file.filename)
    else:
        return render_template('index.html',name="許可されていない拡張子です。")
    f = img_file.stream.read()
    bin_data = io.BytesIO(f)
    file_bytes = np.asarray(bytearray(bin_data.read()), dtype=np.uint8)
    img = cv2.imdecode(file_bytes, cv2.IMREAD_COLOR)
    dst = cv2.Laplacian(img, cv2.CV_32F, ksize=3)
    height, width, ch = dst.shape
    if(width > 1500):
        if (height > 1500):
            return render_template('index.html', name="ファイルサイズが上限を超えています。")
    if(height > 1500):
        if (width > 1500):
            return render_template('index.html', name="ファイルサイズが上限を超えています。")
    for i in range(height):
        blue = ran.randint(255)
        red = ran.randint(255)
        gleen = ran.randint(255)
        for j in range(width):
            if (dst[i, j, 0] >= 80):
                dst = cv2.line(dst, (j, i), (j, i), (blue, red, gleen), 1)
    img_url = os.path.join(app.config['UPLOAD_FOLDER'],''.join(random.choices(string.ascii_letters + string.digits, k=4))+'.png')
    cv2.imwrite(img_url, dst)
    return render_template('index.html',gray_img_url=img_url)
else:
    return redirect(url_for('index'))

@app.route('/uploads/<filename>')
def uploaded_file(filename):
return send_from_directory(app.config['UPLOAD_FOLDER'], filename)

if __name__ == '__main__':
   app.run(debug=False)

imread()