QT实现图像处理-傅立叶变换、傅立叶反变换、平滑、锐化与模板匹配-QT realize image processing- Fourier transform, Fourier transform, smoothing, sharpening and template matching

（1）熟悉并掌握傅立叶变换 （2）了解傅立叶变换在图像处理中的应用 （3）通过实验了解二维频谱的分布特点 （4）用MATLAB实现傅立叶变换仿真 -(1) be familiar with and master the Fourier transform (2) understand the Fourier transform in image processing applications (3) experiments to understand the characteri