prevBtn = Button(self.framePhoto, text='Previous', command=lambda s=self: s.getImgOpen('prev'),
                bg='blue', fg='red').place(relx=0.85, rely=0.99, anchor=SE)


nextBtn = Button(self.framePhoto, text='Next', command=lambda s=self: s.getImgOpen('next'),
                bg='green', fg='black').place(relx=0.90, rely=0.99, anchor=SE)