fcost wrote:

 

 

I have 30.000 photos accumulated over the years, several are useless (too dark, too bright).

I need to delete them.

 

How can I select all the images which are either too dark and/or too bright?

That's really something that you should have dealt with long ago. A major part - and a major point - of a sorted workflow is to cull "useless" images very early in the workflow.

I can't think of any software that would do this, Francisco - as I suggest, there should be no need for it.

If you are suggesting some kind of automatic discard based on a mathematical count of pixels, I think that drastic kind of solution might be detrimental. Some photos are dark by nature [night scenes], some light.  You might [likely] discard photos that you might want to keep.  The best solution is to use the X key to reject any images you do not want and then Photo>Delete Rejected Photos or [Ctrl] + [Backspace] (I believe that would be Command + Backspace on the Mac).  In the future, as you go along, I would weed out what you do not want to keep when imported [as suggested earlier].  I do not think anyone would rely on the software to make this kind of decision.

irvinephotos wrote:

 

4.  Then use that color and search every record in the database for files that have a threshold of X % of that range of color from the histogram data

As far as I know, the histogram data isn't stored in the database, but is computed for each image as you pull them up.  Thus, doing what you said above would mean opening each file and computing a histogram for each - quite a long and slow process.

I've also seen the feature in iView,  which harvested the colour information upon import. But it crops up so rarely in Lightroom discussions (or see how much interest this Bridge feature request garnered) that I'd be surprised if we saw it built into  LR.

Well, I think if you are invested in LR and managed image assets there, you'd want that functionality where you do all other categorizing stuff.  Bridge I always thought should just die, so no wonder it has little traction there.

If anyone is reading this, I'd pay money for the plugin....some others would too if they were responsible for harvesting images based on color scheme....

"I badlly want this now because I want to search 3 terabytes for green screen shoots.   This would solve my immediate problem, and I could see it used to fine images that would work in a color theory aspect of a design (I have orange lettering against green...I need green images kind of thing.)"

I agree.

I asked for this a while ago, but either there's just no interest or no one understood what I was talking about.

Martin, I would comment on your original request but it doesn't let me.

Stock photography is often color centric....and I thought that is one of the things LR can help do (manage stock images).

Google “sort by color” and you’ll find a few programs that can it and people asking Adobe about it all the way back to 2009:

Apparently Picasa can sort-by-color, just like it can do face-matching, neither of which LR can do.

I find one post that says they use a photomosaic program (AndreaMosaic was mentioned in another post) with the target picture as a color-gradient to figure out what pictures are what color—I’m not sure how they determine the filename of the photos that match, though.

Another post mentioned Photology:  http://www.softpedia.com/get/Multimedia/Graphic/Graphic-Editors/Photol ogy.shtml

ImageSorter can do it: http://www.pixolution.de/index.htm?sites/ImageSorter_en

Of course none of these are command-line or open-source, but maybe adding “open source” “command line” to the Google search would find something applicable to a plug-in wrapper.

ssprengel wrote:

 

Of course none of these are command-line or open-source, but maybe adding “open source” “command line” to the Google search would find something applicable to a plug-in wrapper.

Thanks Steve.

I took a *brief* look and didn't find anything.

If anybody comes up with a command-line app that will do it, please post.

R