Show number of megapixels in image

[manusz]

I would like to show the number of megapixels an image has, either show it in a custom thumbnail or as a custom field in the Info panel.

From the Exiftool website I understand there is a composite tag called Megapixels which seems to contain what I would like to use:
https://exiftool.org/TagNames/Composite.html
When I open an image in XNViewMP there is indeed a Megapixels composite tag which gives me the value I am looking for.

I searched the Predefined and Macro fields in PSU but I can't find anything related to Megapixels.
Most likely I am overlooking something obvious……

Could someone please point me in the right direction?

Thanks in advance!

[Hert]

This should do it. Paste it as a custom thumbnail line.

Code: Select all

%code
  if ('%ImageWidth' <> '') and ('%ImageHeight' <> '') then
    result := GetSizeString(StrToInt('%ImageWidth') * StrToInt('%ImageHeight'), ssMegabytes, False); 
  else
    result := '--';
%/code Mpx

[manusz]

Thank you Hert, that works like a charm!

I guess scripting this means the composite tag is not available in PSU then?

[Hert]

The name "composite" means that it is a calculated field, derived from other fields...it is not a standard metadata tag.
In other words: ExifTool made up with that field and calculates the value based on data from other fields. That is also explained at the top of the page you linked.

[manusz]

Ah, OK, I see.
I just assumed the tag would be in the file and thus would be available PSU.
Anyway, the script you so kindly provided fills the gap.
Thank you for your support!