Bridge (or Photoshop) script to check JPGs and move the JPGs with a white border to another folder

[leol30]

Hi

I often have 1000s of photos in a folder, some with white borders and some without. I'd like to be able to run a script that would check and move the bordered photos to another directory.

I've searched the community (and the interweb) but the results get clouded with methods for creating white borders so I've not had any luck finding a discussion that might help me. Has anyone seen a post or script that could help me.

Thanks in advance for any help/advice that can be given, Leo

[Kukurykus]

With Bridge script you might check colour of top left pixel. If it is white a .jpg is going to be moved out.

[leol30]

Thanks for the reply. Yes, I was thinking that the script would need to check a pixel in four places - top left & right and bottom left & right, if all the pixels are white the photo would be moved. But my scripting skills are limited. I don't know the code for identifying a specific pixel or how to check the colour of a pixel. Any help would be appreciated.

[Kukurykus · Accepted solution]

Originally I wanted to suggest exactly 4 corners as well, but then realised maybe it's not needed if the rest of images wouldn't be white in first corner. The below code save in .jsx format to: C:\Program Files\Common Files\Adobe\Startup Scripts CC\Adobe Bridge 2021

fourWhiteCorners = new MenuElement('command', 'White Corners',
'at the end of Thumbnail'), fourWhiteCorners.onSelect = function() {
	Folder(fldr = (pp = app.document.presentationPath) + '/wht/' ).create()
	fls = [].slice.call(File(pp).getFiles('*.jpg')); lab: while(fls.length) {

		bd = new BitmapData(shft = fls.shift())
		for(j = 0; j < (arr1 = [0, bd.height]).length; j++) {
			for(i = 0; i < (arr2 = [0, bd.width]).length; i++) {
				if (bd.getPixel(arr2[i], arr1[j]) - 16777215) continue lab
			}
		}

		shft.rename(fldr + shft.name)
	}
}

After you relaunch Bridge (and prehaps confirm loading of new script) go to folder with your jpg files. Then right click at Content space or specific thumbnail of its area and select last item.

[leol30]

Thanks for the script. I think I have followed your instructions correctly but I am getting an error message.

 I would like to check all fours corners as I only want to move photos with a white border on all four sides.

[leol30]

I have tried the script in this folder with the same error message: C:\Program Files\Common Files\Adobe\Startup Scripts CC\Adobe Bridge 2021

[Kukurykus]

I corrected script again as I found there little mistake, that sometimes code worked wrongly.

[Kukurykus]

Previously I updated post to let you run script described way, but forgot the code. Check now.

[leol30]

Thanks, I am still getting the error message with the "new" code.

[leol30]

The error message is appearing as soon as I run Bridge so it's stopping the script from running.

[Kukurykus]

What error now? Maybe remove the script from Startup Scripts folder, launch Bridge, exit it, then save to StartupScripts folder (the path I provided to) the new one, but with other name.

[leol30]

Our posts crossed. It's working now. Thanks for the script.

[leol30]

Apologies. The script is working now. I retraced my steps to make sure I was using the newest code. Thankyou very much for the script. Much apreciated.

[leol30]

Now I've had time to test the code on batches of JPGs I've realised that checking the corner pixels not only moves photos with white borders on four sides but also photos with white borders on two sides (see attachments below). I think, checking pixels at the mid point on each side would get round this issue. I tried dividing some of the variables by 2 to get a mid point but that didn't work. Not surprising as my understanding of how the code works is very limited. Is it possible to tweak your code to check pixels at the mid-point of the four sides?

[Kukurykus · Accepted solution]

In new, accelerated version change:

bd = new BitmapData(shft = fls.shift())
for(j = 0; j < (arr1 = [0, bd.height]).length; j++) {
	for(i = 0; i < (arr2 = [0, bd.width]).length; i++) {
		if (bd.getPixel(arr2[i], arr1[j]) - 16777215) continue lab
	}
}

to:

bd = new BitmapData(shft = fls.shift()), arr = [[0, hh = (h = bd.height)
/ 2], [wh = (w = bd.width) / 2, 0], [wh, h], [w, hh]]; while(arr.length) {
	if (bd.getPixel((cell = arr.shift())[0], cell[1]) - 16777215) continue lab
}

[leol30]

Thanks for the new mid-point code. It works really well. Another issue I hadn't thought about is that some of the borders are not perfect 255/255/255 white. The RGB seems to range from 250 to 255 in various combinations. But I'm very pleased that I can now move the majority to a new folder. Thanks again for your time and invaluable code. It will be used on a regular basis.

[Kukurykus]

For minimum 3 x 250 change:

- 16777215

to:

< 16448250

[leol30]

Thanks, very useful. A few rogue ones are getting moved so I'll play around with the decimal number to see what gives the best result.

[Stephen_A_Marsh]

Likely the JPEG compression has added random minor colour value variations to the originally pure/clean white border.

[leol30]

I don't know the history of the photos. When I pixel poke they all look pure white with no obvious compression issues. However, even with a different colour on the border there is a chance that one white pixel has crept into the midpoint amongst the coloured pixels. I'm delighted with the script that Kukurykus has written and developed for me. It saves time and eye stress.  

[Stephen_A_Marsh]

I believe that the Bridge script would need to use Photoshop to open and check the images, then return the result to Bridge for adding to a collection, or applying a label or keyword etc.

I just had a play in Photoshop, open an image, make a 1px aliased selection border from the canvas edges, copy selection content to new layer, check that the histogram of the active layer has a mean/median value of 255.

Or four colour samplers could be set at each corner to check if each value was 255.

I'd think that the easiest way would be to do this in Photoshop, then manually move the files in Bridge after sorting or filtering based on metadata added to the files from Photoshop.

Perhaps upper left and lower right check for white would be better than one corner, but faster than four corners?

Edit: I see that @Kukurykus has replied, so perhaps it is possible to check for white in Bridge without having to go to Photoshop.

[leol30]

Thanks for you reply. I'm testing the Bridge script that Kukurykus has supplied.

[Stephen_A_Marsh]

Yes, we posted 1 minute apart, there was no reply when I started my reply, then there was! I'm glad that Kukurykus sorted you out, my approach would have taken more work. 

[Stephen_A_Marsh]

Although there is a correct answer, I'm still somewhat interested in hacking away at my original proposal. I think I'm almost there, however, I need the histogram to be reported based on the pixels in the current selection, not based on the entire image.

app.activeDocument.histogram;

So, how to get the histo value of the active selection?

Or perhaps the active layer, I don't believe that the following works?

app.activeDocument.activeLayer.histogram;

[leol30]

I can't help with the histogram valve. Did you see my latest comment about checking the corner pixels. This method finds borders on 4 sides AND 2 sides (see photos). I think checking the mid-point pixel in the top row, bottom row, left column and right column may eliminate the 2 sided bordered photos.