TBSniller / piccap

PicCap - Hyperion Sender App | Ambilight for LG WebOS TVs
MIT License
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Captured picture looks dim in hyperion.ng #3

Closed snipah closed 2 years ago

snipah commented 2 years ago

The captured picture looks dim somehow and this is reflected in dim ambilight. Could this be related to HDR an/ or Dolby Vision? Is it possible to make the image brighter?

TBSniller commented 2 years ago

Can you attach a Screenshot, please? Maybe it's an setting in your Hyperion instance

snipah @.***> schrieb am Sa., 6. Nov. 2021, 18:25:

The captured picture looks dim somehow and this is reflected in dim ambilight. Could this be related to HDR an/ or Dolby Vision? Is it possible to make the image brighter?

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Sinergetikus commented 2 years ago

I can confirm dim picture in hyperion preview. There is also some strange half transparent panel on the top of the captured image. I don't know if it will affect ambilight, as I haven't completed my build yet. LG OLED55CXRLA webos 5.2.1 fw 03.21.18

2021-11-20_20-57-19

Paulchen-Panther commented 2 years ago

There is also some strange half transparent panel on the top of the captured image

This is the LED preview. To hide it, press the left button in the preview. :grinning:

Sinergetikus commented 2 years ago

This indeed it. Thx. I'm new to hyperion, was using ambibox + arduino in my previous ambilight build :) Could dim image and compression artifacts also be caused by hyperion preview and not by piccap app on TV?

adipierro commented 2 years ago

Having the same while Dolby Vision is on. OLED65B1CRLA webOS 6.2

sorted01 commented 2 years ago

Having the same while Dolby Vision is on. OLED65B1CRLA webOS 6.2

Same here. But only with DV

wehrstedt commented 2 years ago

Can you attach a Screenshot, please? Maybe it's an setting in your Hyperion instance snipah @.***> schrieb am Sa., 6. Nov. 2021, 18:25: The captured picture looks dim somehow and this is reflected in dim ambilight. Could this be related to HDR an/ or Dolby Vision? Is it possible to make the image brighter? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#3>, or unsubscribe https://github.com/notifications/unsubscribe-auth/AMJA6C6LJCGC6RCRQ7P4FPTUKVQJDANCNFSM5HP2BI2A . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.

I tried to capture this somehow. This is a screenshot of the live preview:

preview

This is a screenshot from the original video (I played a 4k video via youtube on my tv and on my laptop):

original

It looks like the preview image is darker than the original one. But this could be also because its a preview. My setup currently works pretty fine, but my personal impression is that the leds could be brighter, like they are running currently on 70% brightness. But I dont have an external video grabber for compareism.

Does any one know if the preview is exactly the same image that hyperion processes? Or is it a low quality version?

EmmanuelVella commented 2 years ago

I think I have the same issue, colors are dimmer and less saturated when HDR is enabled on my OLED65B6V :

With HDR Without HDR
PXL_20220221_213821192 PXL_20220221_213750864

In hyperion preview image is dimmed to

image

tuxuser commented 2 years ago

Will be tracked in https://github.com/webosbrew/hyperion-webos/issues/52