# Searching for faces and users within a collection After you create a face collection and store face vectors and/or user vectors, you can search a face collection for face matches. With Amazon Rekognition, you can search for faces in a collection that match: + A supplied face ID ([SearchFaces](https://docs.aws.amazon.com/rekognition/latest/APIReference/API_SearchFaces.html)). For more information, see [Searching for a face with a face ID](search-face-with-id-procedure.md). + The largest face in a supplied image ([SearchFacesByImage](https://docs.aws.amazon.com/rekognition/latest/APIReference/API_SearchFacesByImage.html)). For more information, see [Searching for a face with an image](search-face-with-image-procedure.md). + Faces in a stored video. For more information, see [Searching stored videos for faces](procedure-person-search-videos.md). + Faces in a streaming video. For more information, see [Working with streaming video events](streaming-video.md). You can use the `CompareFaces` operation to compare a face in a source image with faces in the target image. The scope of this comparison is limited to the faces that are detected in the target image. For more information, see [Comparing faces in images](https://docs.aws.amazon.com/rekognition/latest/dg/faces-comparefaces.html). The various Search operations seen in the following list compare a face (identified either by a `FaceId` or an input image) with all faces stored in a given face collection: + [SearchFaces](https://docs.aws.amazon.com/rekognition/latest/APIReference/API_SearchFaces.html) + [SearchFacesByImage](https://docs.aws.amazon.com/rekognition/latest/APIReference/API_SearchFacesByImage.html) + [SearchUsers](https://docs.aws.amazon.com/rekognition/latest/APIReference/API_SearchUsers.html) + [SearchUsersByImage](https://docs.aws.amazon.com/rekognition/latest/APIReference/API_SearchUsersByImage.html)