基于MATLAB的数字图像处理技术在等离子体显示器中的应用

Application of Digital Image Processing Technology Based on MATLAB in Plasma Display Panel

彩色交流等离子体显示器采用了子场技术来实现灰度的显示,希望用较少的子场进行显示高灰度级的图像,这样可以减少用于寻址的时间,增加维持显示的时间。用较少子场或灰度级显示高灰度等级图像时,如果不采用图像增强技术会出现明显的假轮廓现象,基于MATLAB的数字图像处理技术,提出了一种基于边缘检测的动态误差扩散算法,经仿真结果表明,这一方法应用于交流等离子体显示器中,不仅能够减少因较少子场引起的假轮廓,同时还可以较好地避免轮廓细节的损失。

Alternating current plasma display panel （ACPDP）uses sub-field techniques to achieve gray-scale display, with the hope to show the high gray-scale images with less sub-field, thus it can reduce the time for addressing and increase the time to maintain the display. When the high gray level images is displayed with less sub-field or gray-scale, if without the use of im- age enhancement techniques, it will leave a clear phenomenon of false outline. The article puts forward a dynamic error diffusion algorithm with edge detection based on MATLAB digital image processing technology, the simulation results show that if this method is applied in alternating current plasma display panel, it can not only reduce the false outline phenomenon caused by less sub-field, but also better to avoid the loss of the detailed outline.