Human face identification method based on information

The invention discloses a face identification method based on the tangent information in the image processing technique field, which comprises the following steps: extracting Gabor character for face data with Gabor filter; stacking the sampled character to one-dimensional vector after down sampling for Gabor character; extracting the tangent information of the face data, inquiring the lower dimensional subspace of saving the partial information and getting the corresponding projection matrix with the linear tangent space arrangement for the training sample; mapping the projection matrix of every detecting sample by training to the lower dement ional subspace; proceeding the identification with nearest neighbor classifier in the lower dimensional subspace. The invention extracts the judgment information, which avoids the disadvantage factor, and gains higher identification ratio.