Apply same crop to multiple images

JH
Posted By
John_Hinshaw
Apr 23, 2007
Views
4861
Replies
4
Status
Closed
I need to apply the same crop to multiple images. The h x w pixel dimensions need to be the same but the center x,y location will be slightly different each time. The images are all the same dimensions and resolution. So far all I can do is draw a new crop marquee in each image. If I get the crop size and resolution (Crop, Use Front), set it as a crop tool preset, then attempt to apply on another image, I get only the aspect ratio of the crop area and not the exact number of pixels or dimension. This won’t work because I cannot see an indication of the size of the current crop area.

I also can set guidelines and snap a crop marquee to them, but I see no way to copy a set of guidelines from one image to the next.

Anyone tried this before and found a solution other than recording a custom action and playing it into the images?

Masking via an alpha won’t work (I think) because the location changes from one image to the next.

Thanks,

JH

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MD
Michael_D_Sullivan
Apr 23, 2007
Maybe something like this:
(1) create a rectangular marquee to the pixel dimensions you want on image A, save it to image A as a channel named "crop".
(2) open image B (with image A already open).
(3) start recording an action.
(4) copy the "crop" channel from image A to image B. (5) save and close image B.
(6) stop recording your action.
(7) Leave image A open; in Bridge, select images C-ZZZ. Run the action on them. (8) Now open each image, convert the crop channel to a selection; transform it by moving only; apply Image > Crop; Save.
JH
John_Hinshaw
Apr 23, 2007
Thanks Michael, but seems complicated.

Working a little more with it, I found that the info panel does display the crop marquee dimensions but only while the crop is first being drawn. So, if I carefully draw the marquee I can get it to the exact dimensions (requires a smooth mouse or pen tablet). When I release the mouse it’s there and still movable.

Strangely, if I later resize the marquee the info panel does not display the new dimensions. This is what mixed me up before.

Seems to me that, if I specify a crop’s exact dimensions and resolution that there should be a way to just "drop" a new crop marquee onto an image. Another program, Corel PhotoPaint X3, does just this, but unfortunately I can’t apply it to this project.

— John
DR
Danny_Raphael
Apr 24, 2007
A takeoff on Michael’s suggestion…
* Open a representative image
* Define a rectangular marquee selection according to the required pixel dimensions (option: fixed size)
* Save it as a preset
* Image > Crop

For subsequent images, click on the image, position the selection, Image > Crop.

Optional: An action could be written to invoke this preset. Note the Set selection step would need to be followed by an inserted Select > Modify selection command to allow for positioning. The action could then be applied in batch mode where one could position the selection with each image.
JH
John_Hinshaw
Apr 25, 2007
Thanks Danny,

I had always used the crop tool to do crops, since it is resolution "aware." It didn’t occur to me to use the fixed marquee.

Issue resolved!

— John

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