Cropping a batch of images

Discussion in 'Digital Cameras' started by Terry Pinnell, Jan 26, 2006.

  1. I recently had to crop about 30 images to a fixed size of about
    840x470 px. They had slightly varying initial sizes, but typically
    about 860x600 px (and always larger than the target size).

    I used IrfanView and did each one manually, with these steps:

    1. D-click in Explore to Open
    2. Shift + c to Create Custom Crop Selection
    3. OPTIONAL: drag selection with right mouse to preferred position
    4. Enter to Apply to Image (having specified WxH just once)
    5. Ctl + y to Crop Selection
    6. Ctl + s to Save
    7. Y for Yes, replace.
    8. Esc to close.


    Once I'd started, I just pressed on, but I'm sure on reflection that
    there are more efficient methods. Leaving out Step 3, which obviously
    needs a manual approach, how would others do a task like that please,
    either with IrfanView or some other program?
     
    Terry Pinnell, Jan 26, 2006
    #1
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  2. Terry Pinnell

    snapper Guest

    Do you have to crop? Will resizing suffice?

    If so, JpegSizer is rather good.
     
    snapper, Jan 26, 2006
    #2
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  3. Yes. No.
     
    Terry Pinnell, Jan 26, 2006
    #3
  4. Terry Pinnell

    John H Guest

    In Photoshop you could automate by recording an action up to
    the point of manually positioning the crop mask and then a second
    action to complete. PS would be a heavy investment. You could check
    freeare Gimp to see if it has an automation feature.

    John H
     
    John H, Jan 26, 2006
    #4
  5. John H wrote:
    []
    The much lower-cost Paint Shop Pro also includes automation for situations
    such as this. It uses the Python language, so is very flexible, bit
    doesn't re-invent the wheel.

    David
     
    David J Taylor, Jan 26, 2006
    #5
  6. Terry Pinnell

    Crash Gordon Guest

    I'm pretty sure, although I've not messed with it, you can batch crop in
    IrFanview. Look in Advanced Options when you go to batch.


    |I recently had to crop about 30 images to a fixed size of about
    | 840x470 px. They had slightly varying initial sizes, but typically
    | about 860x600 px (and always larger than the target size).
    |
    | I used IrfanView and did each one manually, with these steps:
    |
    | 1. D-click in Explore to Open
    | 2. Shift + c to Create Custom Crop Selection
    | 3. OPTIONAL: drag selection with right mouse to preferred position
    | 4. Enter to Apply to Image (having specified WxH just once)
    | 5. Ctl + y to Crop Selection
    | 6. Ctl + s to Save
    | 7. Y for Yes, replace.
    | 8. Esc to close.
    |
    |
    | Once I'd started, I just pressed on, but I'm sure on reflection that
    | there are more efficient methods. Leaving out Step 3, which obviously
    | needs a manual approach, how would others do a task like that please,
    | either with IrfanView or some other program?
    |
    | --
    | Terry, West Sussex, UK
     
    Crash Gordon, Jan 26, 2006
    #6
  7. Terry Pinnell

    Dave Cohen Guest

    In order to display my 1600x1200 shots correctly in dvd player I resampled
    to 640x420, don't ask me why I had to do this, if I don't I get vertical
    distortion.
    Anyway, I know I did this in Irfanview, forget the details but can't be very
    hard since I'm getting old and senile.
    Dave Cohen
     
    Dave Cohen, Jan 26, 2006
    #7
  8. Thanks all. Particularly for the pointer to that facility in IrfanView
    which I'd overlooked. Will try it on next such job. Meanwhile, to
    finish another similar exercise, I used my external keyboard macro
    program, Stiletto (now obsolete), to automate steps 4-8, which helped
    a lot.
     
    Terry Pinnell, Jan 27, 2006
    #8
  9. Terry Pinnell

    Ed Ruf Guest

    Not the case.
    That is a tautology given you are resizing .
    ________________________________________________________
    Ed Ruf Lifetime AMA# 344007 ()
    See images taken with my CP-990/5700 & D70 at
    http://EdwardGRuf.com
     
    Ed Ruf, Jan 27, 2006
    #9
  10. Thanks, but note that I'm not resizing. I'm cropping to a fixed size.
    And anyway these are rather special images, in which judgment is not
    too important. They are maps originally made around 4:3, which I
    realised I want to show on a wide-screen TV. Losing part of any edge
    is unimportant. In most cases the task effectively amounts to using a
    roughly 16:9 section at the top of the original.

    I agree that I wouldn't trust any automated process to automatically
    crop say a set of family group photos!
     
    Terry Pinnell, Jan 28, 2006
    #10
  11. Terry Pinnell

    Doug Warner Guest

    I has a set of PC screen captures, from which I had to remove all but
    the window contents, then resize the resulting images. For this,
    ThumbsPlus worked nicely.
     
    Doug Warner, Jan 29, 2006
    #11
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