Body: <p>Lets say i have a portrait photo of which the face it contains covers about 90% of the entire photo. I want to be able to detect the face in this photo using facial recognition but i also want to reduce the file size of this photo. The best way to reduce the file size is to make the size dimensions of the photo smaller.</p>
  <p>I want to know at what size a face containing photo becomes unusable for facial recognition. For instance could a 25 x 25 pixels photo still be used for facial recognition or would this be too small?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-08-17T00:52:22.437Z
Comments.Text: 25x25 you can barely understand if a it's a child or an adult... have you tried to read some publications and see what res the used?
Comments.UserDisplayName: Alberto
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-08-17T01:18:17.957Z
Comments.Text: @AlbertoSinigaglia but will it still recognize the face?
Comments.UserDisplayName: Maurice
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-08-17T01:34:12.473Z
Comments.Text: if you mean "recognize if there is a face", yes, if you mean "recognize which face is on that image", no (probably)
Comments.UserDisplayName: Alberto
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-08-17T02:18:50.300Z
Comments.Text: @AlbertoSinigaglia probably isn't going to cut it. I need facts.
Comments.UserDisplayName: Maurice
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-08-17T16:01:53.213Z
Comments.Text: @Maurice You can't really have a definite answer to this question, it will depend on what sort of accuracy you are hoping to obtain.
Comments.UserDisplayName: finlay morrison
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-08-17T18:29:23.280Z
Comments.Text: @finlaymorrison lets say an accuracy of 90%
Comments.UserDisplayName: Maurice
Tags: <computer-vision><image-recognition><facial-recognition>
Title: At what size does a picture become unusable for facial recognition?
UserDisplayName: Maurice
ThreadText: # At what size does a picture become unusable for facial recognition?
  
  (Asked by: username_0 on 2022-08-14)
  
  Lets say i have a portrait photo of which the face it contains covers about 90% of the entire photo. I want to be able to detect the face in this photo using facial recognition but i also want to reduce the file size of this photo. The best way to reduce the file size is to make the size dimensions of the photo smaller.
  
  I want to know at what size a face containing photo becomes unusable for facial recognition. For instance could a 25 x 25 pixels photo still be used for facial recognition or would this be too small?
  
  **Tags:** computer-vision, image-recognition, facial-recognition
  > **Comments:**
  > **username_1**: 25x25 you can barely understand if a it's a child or an adult... have you tried to read some publications and see what res the used?  
  > **username_0**: @AlbertoSinigaglia but will it still recognize the face?  
  > **username_1**: if you mean "recognize if there is a face", yes, if you mean "recognize which face is on that image", no (probably)  
  > **username_0**: @AlbertoSinigaglia probably isn't going to cut it. I need facts.  
  > **username_2**: @Maurice You can't really have a definite answer to this question, it will depend on what sort of accuracy you are hoping to obtain.  
  > **username_0**: @finlaymorrison lets say an accuracy of 90%  
  
  ---
  
  ## 0 answers
  
  