Google couldn't seem to figure this one out for me and no matter what I tried the 'add a search filter' option was always greyed out. Supposedly Windows 7 would know what I needed for filters based on folder type but then why couldn't I have a dimension filter in a picture library?
Turns out I could. By querying the search box. I thought it might be crazy enough to work and after a bit of poking around I found that it does.
as a search parameter will return all images 600px+ wide. I think the colon tells the search that this is an attribute filter as opposed to a text search. The left side is whatever attribute you want to search on. You get <>=(looks like = is default, in other words an exact match) and I assume other operators you might care to experiment with. This would be in fact the actual filter as set by the string on the right. When I say string I mean it literally. I haven't tested enough to make this claim as fact but it looks like it's a mix of the operator, the number value, and then a string weighted against what you would see in Explorer as the value of the attribute. What I mean by this is that 'dimensions:>599 x' will return on width but 'dimensions:>599' (no trailing nbsp and 'x') will return on both height and width. Whatever is a match in the '800 x 600 (for example)' string you would see in Explorer. So in this particular case, searching on image dimensions, ' x' would return on width, and 'x ' would return on height.
Pardon my enthusiasm here but this is frikan brilliant. It boggles my mind that my searches on this matter turned up a lot of deflecting corpspeak and zero mention of this awesome tool. There must be potential here to filter by any attribute in whatever capacity one might need. The 'add' option being greyed out I dunno. I'm on 64 Pro and all I can figure is that it's an unfinished piece that they didn't clean up before release. OR (still unfinished yes) clicking the 'add a filter' shoulda/woulda brought up a dialogue to plug in the discussion above. Too bad, cause it rocks.
No doubt some smart cookie out there will find a way to combine search criteria as well. I poked around a bit with semi-colons and pipes but no luck. However, for example, consider this,
'dimensions:>599 x' returns all images 600px+ width. Re-querying this result set with 'size:>100 kb' filters out everything under 100 kb.
What couldn't you do with this? Every possible attribute attached to any file type looks to be within reach so in theory you couldn't query anything that it couldn't return exactly as you needed. It's all there for you to experiment with so please don't ask me for a quick fix. Get in there and play.
and oh groan yes i see this is an 'old' question. i dunno why some insist on pointing this out when searches are immemorial. so there.