Ghosting issue after deinterlacing

[a250]

Hello,
i have a ghosting issue with Bandicam after deinterlacing the captured video.
It seems that Bandicam is converting the colorspace.
My capture device is using YUY2 and i'm using UtVideo YUV422 BT.601 VCM for encoding.
Because the internal codecs doesn't have YUV422.
Bandicam is version 5.1.1.1837 (32 Bit).

With VirtualDub it's fine, because it doesn't converting the colorspace and keeping it from the source.
I'm using the same encoder and same deinterlacer.
I have attached screenshots for comparision.

I don't know if it's fixed in newer Bandicam versions.
If not, can it be added, that it doesn't convert the colorspace and keep it from the capturing device?
And please adding YUV422 support in the internal codecs.
Thanks.

And second.
The x264vfw v2.00 external codec is not working.
It says failed to initialize codec.

[Bandicam Company]

Hello a250,

We have forwarded your requests to our development team.

Thank you for your report!

[a250]

Thank you!
I changed the system and use now the latest 64 Bit version.
The x264vfw codec is now working.

But the problem with the color conversion is still present.
I attached 2 new screenshots, there you can see it better.
It's noticable at the cars and the Pine Heels font.
I hope it will get fixed in the next update.

[a250]

After a year of reporting, it's sadly still not fixed.

[a250]

Hello,
the issue is still present.
Please i bought about 2 years ago a license and i'm waiting for a fix.

[a250]

Another year has gone by, and it hasn't been fixed.
I don't know what to do.
Why it gets ignored?

[Bandicam Company]

Hello a250,

The main reason this happens is due to how video compression and chroma subsampling work. Since your capture device outputs in YUY2 (YUV 4:2:2), but standard video codecs internally convert this to YUV 4:2:0 to reduce file size, some color data is compressed. When combined with deinterlacing, this sub-sampling process often causes color bleeding or ghosting effects (especially around text and fast-moving objects like cars).

While using a purely lossless external codec would preserve the quality perfectly, it is hard to recommend for daily use because the file sizes become extraordinarily large.

As a practical workaround, if you are using an NVIDIA graphics card, We highly recommend trying the H.264 (NVIDIA NVENC) codec with specific settings. NVIDIA supports high-fidelity color profiles that might resolve your issue without blowing up the file size too much.

You can try setting the profile to High 4:4:4 or High 4:4:4 Lossless. This allows the encoder to retain full color information (4:4:4), preventing the chroma blending that causes the ghosting.

You can check the detailed guide on how to configure this profile here:
https://www.bandicam.com/support/tips/h264-profile/

Steps to try:
- Open Bandicam Format settings (Video -> Format Settings).
- Choose H.264 (NVIDIA NVENC) as your GPU encoder.
- Click on the [Options] or codec settings button next to it.
- Change the Profile to High 4:4:4 (or Lossless depending on your needs).

Give this a try and see if it stops the color/ghosting artifact while keeping the file size reasonable.

Hope this helps!

[a250]

Hello,
thank you for your reply.

...Since your capture device outputs in YUY2 (YUV 4:2:2), but standard video codecs internally convert this to YUV 4:2:0 to reduce file size, some color data is compressed...While using a purely lossless external codec would preserve the quality perfectly, it is hard to recommend for daily use because the file sizes become extraordinarily large...

I had used an external codec with YUV422 and YUV444 support (UTVideo Codec) and have this issue.
It´s an lossless codec.
That seems Bandicam is working internaly with YUV420 at external codecs regardless of what the codec outputs.

As a practical workaround, if you are using an NVIDIA graphics card, We highly recommend trying the H.264 (NVIDIA NVENC) codec with specific settings... You can try setting the profile to High 4:4:4 or High 4:4:4 Lossless. This allows the encoder to retain full color information (4:4:4), preventing the chroma blending that causes the ghosting.

I tried that and the ghosting issue is gone.
That is a partially fix for this thanks, but capturing at YUV444 and going back to YUV422 is a lossy process and making unsharp borders.
And keeping at YUV444 resulting in a more huge file size and is unnecessary if the source was YUV422.
It would be nice for adding a YUV422 mode for the internal x264 codec and support for external codecs.
OBS also got support for other color spaces.

And thanks a lot for your reply, i really hoped for any response.