Negate input video:

lutrgb="r=maxval+minval-val:g=maxval+minval-val:b=maxval+minval-val"
lutyuv="y=maxval+minval-val:u=maxval+minval-val:v=maxval+minval-val"

The above is the same as:

lutrgb="r=negval:g=negval:b=negval"
lutyuv="y=negval:u=negval:v=negval"

Negate luminance:

lutyuv=y=negval

Remove chroma components, turning the video into a graytone image:

lutyuv="u=128:v=128"

Apply a luma burning effect:

lutyuv="y=2*val"

Remove green and blue components:

lutrgb="g=0:b=0"

Set a constant alpha channel value on input:

format=rgba,lutrgb=a="maxval-minval/2"

Correct luminance gamma by a factor of 0.5:

lutyuv=y=gammaval(0.5)

Discard least significant bits of luma:

lutyuv=y='bitand(val, 128+64+32)'

Technicolor like effect:

lutyuv=u='(val-maxval/2)*2+maxval/2':v='(val-maxval/2)*2+maxval/2'