ShapeDiver image sampler Brightness

Hi everyone,
I have a technical question, I need to upload a bitmap and process it with the image sampler, but I saw that the shape diver image sampler component doesn’t give me brightness values like that grasshopper component do, is there a way to fix this and get the same result?
Thank you.

You are correct that the ShapeDiver image sampler does not directly allow to filter by specific channels of the color. However, you can easily explode the colors that the component outputs into those channels using one of the split components of Grasshopper
The Split AHSV component in particular gives you the brightness value of the color.