基于FPGA的颜色识别触摸屏系统设计与实现

Design and implementation of color recognition touch-screen system base on FPGA

为了提高颜色识别系统的准确性、稳定性以及设计灵活性,基于现场可编程门阵列技术,设计了一个应用于静态图片的颜色识别系统,并设定了触摸屏功能。通过触摸读取屏幕坐标对应的RGB颜色值,减少了环境变化对系统的影响,利用阈值判定法实现颜色识别。实验结果表明,该系统稳定而且实用性强,系统可以识别任意800×480像素bmp图像的颜色,并具有较好的鲁棒性。

In order to improve the accuracy,stability and design flexibility of the color recognition system,based on field programmable gate array（FPGA）technology,a color recognition system applying to the static pictures was designed,in which the touch screen capabilities was set. By touching the corresponding RGB color value of the screen coordinates,the impact of the environmental change on the system is reduced and the color recognition is achieved by the threshold value determinate meth-od. The experimental results show that the system is stable and practical,can identify the colors of any bmp image with 800 ＊480 pixels,and has better robustness.