Python ValueError:找不到在单映像模式下读取指定文件的格式 if request.method=='POST': file = request.files['image'] if not file: return render_templ

ValueError:找不到在单映像模式下读取指定文件的格式

if request.method=='POST':
    file = request.files['image']
    if not file: return render_template('index.html', label="No file")

    original_image = file.filename
    session['original_image'] = original_image
    print('original_image',original_image)
    filename = secure_filename(file.filename)
    
    file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
    car_image = imread(file, as_gray=True)