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M
malathan
Participant
June 23, 2010
質問

Crop to specific dimensions?

  • June 23, 2010
  • 返信数 8.
  • 28043 ビュー

Is there a way to crop to a specific dimension?  I have a 3888x2592 image and would like to crop it to 2400x1600.  Problem I am having is I can get it to 2388x1589 or 2420x1619 or finally after many tries (over a minute of attempting) got it to 2399x1599.  Is there any way to FORCE it to a specific dimension?

Also, on export I know you can resize an image, but are you able to apply a resize within lightroom itself?  Can't think of a situation where I would want to do that, but just out of curiousity...

Thanks,

Clayton

      このトピックへの返信は締め切られました。

      返信数 8

      S360
      S360
      Participating Frequently
      June 25, 2014

      As a long, long time user of PS we've finally decided to add LR to our workflow, not without some hesitation from staff. Besides catalog sharing which I believe we've resolved there's this issue "cropping to specific pixel dimension" We have several odd sizes that cannot be changed one of which 1601x1149. Our goal is to automate exporting of images with watermarking and various image corrections.

      Other than Rob Cole's possibility project saving plug-in (untested) we've found no way of automating the export of a specific pixel dimension without introducing PS back into the workflow before LR. I'm really amazed that this feature "common in PS" is not in LR.

      Options we've tried are:

      -Entering custom aspect ratio and entering pixels to convert, doesn't work.

      -Export, Image Sizing, Entering Dimensions 1601x1149. The result is 1601x1144

      Adobe can this not be a simple fix to include pixels and aspect ratios together?

      areohbee
      areohbee
      Legend
      June 25, 2014

      Consider going here to request or vote on the feature

      http://feedback.photoshop.com/photoshop_family/products/photoshop_family_photoshop_lightroom

      (this is the user-to-user forum)

      S360
      S360
      Participating Frequently
      June 25, 2014

      Thanks Rob I will. edit: After visiting there was nothing specific posted to voting so i posted a feature request.Feature Request: Crop to specific pixel dimensions

        areohbee
        areohbee
        Legend
        July 2, 2012

        malathan wrote:

        Is there a way to crop to a specific dimension?

        Answer (in summary) @Lr4.1:

        Via direct support in Lightroom UI: No.

        Via manual xmp editing: Yes, if you are willing to figure out the correct values to use, and edit xmp using text editor, read metadata, and then save cropped photos for copy/paste in future.

        Via XmpCrop plugin: Yes, you can crop to a specific dimension, quite simply.

        Rob

        G
        GrizzlyAK
        Known Participant
        July 2, 2012

        Contrary to what everyone is telling you here, yes, you can crop to exact dimensions, kinda. I had the same problem. I first crop to a  specific aspect defined by the dimension I want, for example, 2400x1600. I do this by chosing "Enter Custom" in the crop box at the top right. You enter it as a 2.400 and 1.600, since 2.4x1.6 is the same as 2400x1600, and LR does'nt let you enter big numbers. Then, one you have it cropped to the right aspect, you can export the file to that exact dimension from LR using the Export command. I do this all the time to create exact dimension jpegs for my web site. Works great.

        areohbee
        areohbee
        Legend
        July 2, 2012

        Nobody is disputing whether you can export to exact dimensions or not, but if you read a little closer, you'll see the distinction some folks are making, and why they want to crop to exact dimensions, instead of exporting to exact dimensions.

        DdeGannes
        Community Expert
        DdeGannesCommunity Expert
        Community Expert
        July 2, 2012

        OK so its not possible in LR, is it possible in a pixel editing program like Photoshop, Paint Shop Pro etc. without resampling?

        Regards, Denis: iMac 27” mid-2015, macOS 11.7.10 Big Sur; 2TB SSD, 24 GB Ram, GPU 2 GB; LrC 12.5,; Lr 6.5, PS 24.7,; ACR 15.5,; (also Laptop Win 11, ver 24H2, LrC 15.0.1, PS 27.0; ) Camera Oly OM-D E-M1.
        areohbee
        areohbee
        Legend
        July 1, 2012

        XmpCrop supports cropping to exact pixel dimensions:

        Click here...

        K
        keylightdigital
        Participating Frequently
        July 2, 2012

        Rob Cole wrote:

        XmpCrop supports cropping to exact pixel dimensions:

        Click here...

        Cool.  I downloaded and installed, but coming up with an error (which I've submitted via your site).

        areohbee
        areohbee
        Legend
        July 2, 2012

        Thx - I replied...

        R

        areohbee
        areohbee
        Legend
        May 3, 2012

        Dunno if it's worth the trouble to you, but you can set the crop in xmp using exif-tool (or a grep util, or text editor), then re-read metadata in Lightroom.

        There may be a plugin that automates it.

        PS - To "resize" in Lightroom, export back to catalog. I've done this before for special-purpose images.

        Cheers,

        Rob

        MikeKPhoto
        MikeKPhoto
        Known Participant
        May 4, 2012

        This is an interesting topic as I become more familar with LR I have been considering using the print module rather than printing from PS. This in part by comments from some of the forum guru's on how much better the print workflow is compared to PS.

        About 5 times I year I go into mass printing mode for my shows. I use pre-cut archival matts and buy in bulk to keep the costs down. So in PS I have custom crops that give an image about 0.15" greater than the window opening. This helps me keep the ink costs down as well (all about the margins, $ ones that is).

        I have been experimenting with LR and output cropping to keep the workflow within Lightoom, but not being successful. For instance in PS I can crop an image to 4.15"x6.15" to fit an 8x10 matt (I let PS handle the resampling) and print a bunch of copies. Is this possible within LR, because I either I am really missing someting or doing somthing really wrong.

        Any ideas more than appreciated

        Cheers

        G
        GrizzlyAK
        Known Participant
        June 24, 2010

        I've complained about this before too, and requested it be added as a feature. You can, however, enter exact aspect ratios, even if your pixel dimensions are greater than 999.999 (the max for LR). You can just enter it as a rational number, so 1900 x 1200 would be 1.900 x 1.200. These numbers provide the same ratio and will work in LR. Not having a way to specify exact pixel dimensions is just LAME, LAME, LAME and would be trivial to do in LR. WE WANT IT ADOBE!

          exploded_view-6yAW9i
          exploded_view-6yAW9i
          Participant
          June 23, 2010

          I don't know if you've been doing this, but you can crop to a specific ratio (through Enter Custom...), which in your case would be the very common 3:2 (then set the specific pixel dimensions on output, as, I think, you have been doing).

          I don't think you can crop to specific pixel dimensions within Lightroom (save for doing this on export). The current setup is probably a better way to do things anyway, since you can use any region of your original photo at the chosen ratio, rather than having to use a 100% crop.

          I've used this method for blog headers, etc., and I've found it very handy to just be able to set the ratio in Lightroom, select the section I want as a header, then export at exactly the dimensions I need.

          dorin_nicolaescu
          dorin_nicolaescu
          Inspiring
          June 23, 2010

          No, you cannot.

          Why do you need to crop to exact pixel dimension? Is it a photograph or some technical drawing?

          M
          malathan作成者
          Participant
          June 23, 2010

          My purpose of setting a specific crop dimension at the time of adjusting/developing the image versus on export is that when I do export, I almost always just do full resolution.  Rarely do I say to export to a specific size.  So it is during the developement stage that I expect better control over cropping dimensions.

          I have used lightroom for several years now for personal use, but only recently getting more into it in cataloging, keywording, and such (being anal and wasting time as my girlfriend calls it).  Just upgraded to LR3 and really dissapointed that Adobe has not done anything to the crop tool for allowing more control over dimensions.

          dorin_nicolaescu
          dorin_nicolaescu
          Inspiring
          June 23, 2010

          I almost always just do full resolution.  Rarely do I say to export to a specific size.

          Yet, you ask for precisely 2400x1600. Why not just crop and export without resizing then?

          I mean, in my opinion cropping is is more like the artistic part of the photographic process, rather than technical. If you picture happens to "work" better at 2500 or 2300 pixel, rather than 2400, would you still insist on cropping to 2400?

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