Saturation [SOLVED]

[denisb]

Hi Igor,

Saturation increase the red channel of a grey colour. And for the other colour, it seems not efficient.

 

Denis

[Igor]

Denis, thanks, I see this issue. We'll check the code tomorrow.

P.S. I remember about AV1 and FPS 30.03

[Igor]

Denis, do you think that the Lightness parameter was important in color filters?

[denisb]

Hi Igor,

if I understand the lightness parameter, it is an exposure compensation.

So, if a video is under-expose or over-expose, this parameter is the one to use I think, before Brightness, Contrast,...

If the slider show the EV ( exposure value) it would be best.

 

Denis

[Igor]

Denis, thanks for your message.

[CorVdK]

If I am right,

Lightness is the perception of brightness, without color information, on a scale from black to white.

So this must be what the parameter express.

[Igor]

First version of improved Saturation for grayscale picture:

https://files.wnsoft.com/test/ptevideooptimiser-setup.exe

[denisb]

For greyscale picture, it's Ok

[Picsel]

On 12/6/2024 at 6:14 AM, denisb said:

So, if a video is under-expose or over-expose, this parameter is the one to use I think, before Brightness, Contrast,...

If the slider show the EV ( exposure value) it would be best.

To correct overexposure or underexposure, you can also use the "midtones" and, if necessary, "whitepoint" and "blackpoint" settings.

In my opinion, the brightness setting is more important for improving the visual appearance of colors.
Besides, is it really the aim of PTE Video Optimizer to correct colorimetric defects when editing videos?

Daniel