图像缩放中抗锯齿单元的设计

Design of Antialiasing Unit in Image Scaling

当前电视机型号的多样化使得在电视信号图像处理过程中数字图像的缩放技术得到了广泛的使用，由此引发的图像缩放后锯齿现象的产生也不可避免的出现。本文针对这种现象，设计了一种在图像缩放中的抗锯齿单元，并用FPGA进行了验证调试，验证结果表明本设计用较少的硬件资源极大程度上改善了图像的锯齿现象。

The image scaling, which can match the digital image to the television set, was used widely in the digital image processing because of the variety of the television model. But the image scaling will lead to unwanted jaggies. In this paper an antialiasing unit is designed and verified by FPGA to remove the unwanted jaggies. And the result shows that the jaggies after the image scaling has been improved greatly with less hardware resources after the processing with the antialiasing unit.