空域法 meaning in English

spatial domain method

As the military and industry is developing dramatically , to enhance the low - contrast digital image has become one of the important areas in image processing . there are two traditional methods to enhance the low - contrast digital image : the methods based on frequency and the method based on time . the histogram enhancement , the most popular way to enhance , is representing the latter one ; while the methods based on frequency often uses wavelet transform , ft ( flourier transform ) , dct ( discrete cosine transform ) to enhance
随着军事和工业上的发展需要,低对比度数字图像的增强越来越成为数字图像处理中的一个重要领域,传统的增强方法分为频域法和空域法两大类,其中空域法的代表为直方图增强法,这也是最为流行的增强方法,频域法中用的较多的是基于小波变换,傅立叶变换和离散余弦变换的增强方法,本文介绍的是基于小波神经网络的频域增强法。