It identifies and modifies pixels which might cause problem when
displayed onto PAL or NTSC TV screen.
You can find this filter in the image window menu under
Colors → Hot.
“Hot” filter options
You have to select the TV mode: PAL or NTSC.
You can select:
Blacken: this will turn hot pixels to
With this option, work will be performed on a new layer instead
of the image. This will give you peace of mind!