image cropped on lower resolution

Discussion in 'Hikvision' started by kcinick, Jun 14, 2018.

Share This Page

  1. kcinick

    kcinick n3wb

    Joined:
    Aug 29, 2016
    Messages:
    14
    Likes Received:
    0
    image in 2560x1920
    [​IMG]

    image in 1920x1080
    [​IMG]

    is there a way to use the 1920x1080 resolution but without cropping, i wanna see the whole picture, i don't care about stretching if there is any...
     
  2. mat200

    mat200 Known around here

    Joined:
    Jan 17, 2017
    Messages:
    3,019
    Likes Received:
    1,392
    Hi kcinick,

    What camera is this, and what resolutions are available?
     
  3. kcinick

    kcinick n3wb

    Joined:
    Aug 29, 2016
    Messages:
    14
    Likes Received:
    0
    DS-2CD2155F-IS

    1280x720
    1920x1080
    2048x1536
    2560x1920
     
  4. mat200

    mat200 Known around here

    Joined:
    Jan 17, 2017
    Messages:
    3,019
    Likes Received:
    1,392
    How does the 1280x720 image compare?
     
  5. kcinick

    kcinick n3wb

    Joined:
    Aug 29, 2016
    Messages:
    14
    Likes Received:
    0
    just like the 1920x1080
     
  6. mat200

    mat200 Known around here

    Joined:
    Jan 17, 2017
    Messages:
    3,019
    Likes Received:
    1,392
    Just like the crop on as the 1920x1080 OR less? ( that is even more cropped )
     
  7. kcinick

    kcinick n3wb

    Joined:
    Aug 29, 2016
    Messages:
    14
    Likes Received:
    0
  8. bp2008

    bp2008 Staff Member

    Joined:
    Mar 10, 2014
    Messages:
    7,493
    Likes Received:
    4,042
    I think some cameras have configurable scaling methods, but for others the developers were lazy and don't provide an option, or maybe the chipset they used can't handle some kinds of scaling. Some of my old junky Chinese cams did this forced cropping thing, but I haven't known HIkvision to do it too :(
     
  9. kcinick

    kcinick n3wb

    Joined:
    Aug 29, 2016
    Messages:
    14
    Likes Received:
    0
    could be a solution changing the lens for a 1.8mm or something like that?
     
  10. bp2008

    bp2008 Staff Member

    Joined:
    Mar 10, 2014
    Messages:
    7,493
    Likes Received:
    4,042
    If you can find a lens that fits and is sufficiently high quality for a multi-megapixel camera with IR, that could be an option. It looks like that camera uses a standard M12 lens but that is no guarantee of a good fit, and there are certainly some M12 lenses that wouldn't fit under the dome or wouldn't be able to focus properly without physically contacting the sensor housing.
     
  11. Securame

    Securame Pulling my weight

    Joined:
    Mar 25, 2014
    Messages:
    448
    Likes Received:
    110
    Location:
    Barcelona, Spain
    2560x1920 is 4:3 format, and 1920x1080 is 16:9 format (wide screen).

    So 1920x1080 will just crop part of the top/bottom from the sensor to show you a wide screen image.

    Yes, they could just provide a way/setting to adjust this, so it would still use all the sensor and then the 1920x1080 would just look stretched. But they don't :(
     
  12. bp2008

    bp2008 Staff Member

    Joined:
    Mar 10, 2014
    Messages:
    7,493
    Likes Received:
    4,042
    If you look at his screenshots though, they have cropped it on all sides, not just top and bottom!