Java_图像处理(几何变换、色彩变换、卷积、频率变换)-Java_ image processing (geometric transformation, color transform, convolution, frequency conversion)

用JAVA写的带通滤波代码，实现思路很简单，没有采用各种数字滤波的方法。而是通过傅里叶变换到频域，将要求外的频率均置0，再逆傅里叶变换得到的。效果还不错。-Written using JAVA bandpass filtering code to achieve the idea is very simple, without using a variety of digital filtering approach. But through the Fourier transform to t

java平台下的FFT变换，实现通过RR间期计算HRV频域分析-FFT transform java platform, to achieve a frequency domain HRV calculated by the RR interval analysis

Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Interpolation and fitting, solution of equations, data analysis, Gabor wavelet transform and PCA face recognition code.