应用TFT-LCD TCON中的图像处理改进算法研究

An improved method of image processing in TCON of TFT-LCD

为满足低端TFT-LCD对图像显示的特定要求,我们采用了一定的算法对SCALER缩放之后的图像进行后续处理,包括对比度调整、伽玛校正以及去抖动,去抖动算法是我们研究的重点。经过对一些经典视频图像处理算法的研究,并考虑到实时性要求,我们从中选出了优秀的算法,并进行改进及硬件实现。针对每一个部分,我们首先采用了MATLAB语言进行高级仿真,验证其可行性,然后进行RTL级的硬件语言描述。两种仿真都给出了相应的结果,从中可以看出,我们的设计达到了预期的目的。

In order to satisfy the special demand of image display in TFF-LCD, We use some new method to deal with the zoomed image. Including contrast adjustment, gama emendation and dithering. Dithering is the major point of our research. After our research in several classical algorithms for video image processing and in considering of the real-time requirement, we selected the best algorithm to make improvements and hardware implementation. First, we validated the feasibility of every single part through advanced simulation using MATLAB language, and then made descriptions in RTL language. As the above two simulation turned out the same result, we could infer that our design had accomplished our anticipative effect.