Image is not exactly same after encode decode

[Aakash chowdhury]

Hi, I'm using vp9 svc encoding. I got some color mismatched after decoding the encoded image. Here is the example - 

This is original image...

This is decoded image ....

[Aakash chowdhury]

And also is there any way to increase the brightness of decoded image?

[Aakash chowdhury]

[James Zern]

Hi,

On Sun, Jul 17, 2022 at 10:20 PM Aakash chowdhury <amiia...@gmail.com> wrote:

On Monday, July 18, 2022 at 11:16:29 AM UTC+6 Aakash chowdhury wrote:

And also is there any way to increase the brightness of decoded image?

That would be something you'd need to do as a post process, libvpx doesn't offer any filters like this.

 

On Monday, July 18, 2022 at 11:15:32 AM UTC+6 Aakash chowdhury wrote:

Hi, I'm using vp9 svc encoding. I got some color mismatched after decoding the encoded image. Here is the example - 

There will be some loss when converting to YUV420 and due to the compression. You can try using YUV444 as the input for screen content. You can also set the tuning mode to screen content:

https://chromium.googlesource.com/webm/libvpx/+/refs/tags/v1.12.0/vpx/vp8cx.h#472

 

This is original image...

This is decoded image ....

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