Function recoverData

PCA/PCA.py:108–112

(Z,U,K)

# 恢复数据
def recoverData(Z,U,K):
    X_rec = np.zeros((Z.shape[0],U.shape[0]))
    U_recude = U[:,0:K]
    X_rec = np.dot(Z,np.transpose(U_recude))  # 还原数据（近似）
    return X_rec

# 显示图片
def display_imageData(imgData):