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add brightness on low light

Discussion in 'Hyperion General' started by David Hequet, 29 December 2020.

  1. David Hequet

    David Hequet New Member

    Messages:
    28
    Hardware:
    RPi3
    Hi,

    Is it possible to add brigthness or saturation on low light image?
    Exemple: when the movie show a night scene, i want to have some backlight (better for eyes :p )

    Thank you
     
  2. jeroen warmerdam

    jeroen warmerdam Raspberry 3B / APA102 / Hyperion.NG relaisbox

    Messages:
    400
    Hardware:
    RPi3
    Hyperion.NG

    image processing> Backlight threshold op to 4 % already will provide backlight at dark scenes
     
  3. David Hequet

    David Hequet New Member

    Messages:
    28
    Hardware:
    RPi3
    Thank you. it does the job.

    Only one cons: when the grabber receive no signal the led stay on.
    does Hyperion.NG provide on option toi avoid that?
     
  4. jeroen warmerdam

    jeroen warmerdam Raspberry 3B / APA102 / Hyperion.NG relaisbox

    Messages:
    400
    Hardware:
    RPi3
    same menu, option ON signal detection and you see the values for colours> treshold.

    treshold on aprox 10 setting.
    vmin vmax hmin hmax setting you can find here in the forum. some do them 0.1 / 0.98
    but i am not using that so you have to find out signal detection settings on the grabber.
     
  5. David Hequet

    David Hequet New Member

    Messages:
    28
    Hardware:
    RPi3
    this is the rainbow signal from the grabber. My grabber is powered by the tv usb, so it swich off with the tv. Not the same "problem".

    Il will search for this after the new year week-end. Thank you again

    furthermore I will try to use a camera as grabber. More problem to solve before this one :p