使用stm32驱动OV7670摄像头进行图像实时采集，在tft屏幕上实时显示并识别图像中的特定颜色，在颜色的周围画上框。(The use of STM32 driver OV7670 camera for real-time image acquisition, real-time display and recognition of the image in the TFT screen specific colors, painted in the color around the box.