Photoshop7- aligning photos

Discussion in 'Australia Photography' started by nt, Jan 17, 2004.

  1. nt

    nt Guest

    Does anyone have any tips on how to align to identical images in photoshop
    (stacking) i have tried zooming in and aligning by eye, but it's all abit
    hit and miss, not to mention quite labour intensive. Does PS7 have any sort
    of intellingent 'snap to' feature i dont know about???

    your helpful relpy is feverishly anticipated..
    n.t.
     
    nt, Jan 17, 2004
    #1
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  2. If they are identical, simply open both, click on one and "select all"
    (control-A) and "copy" (control-C).... then click on the other and "paste"
    (control-V)

    Russell
     
    AU Digital Photo Of The Day, Jan 17, 2004
    #2
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  3. nt

    cole Guest

    This is what I do:
    Select a box around the middle two thirds of the next photo.
    Feather the selection by 20 or so
    Paste it next to the previous photo
    Set the layer opacity to 50%
    Match the photos up in the middle
    Set opacity back to 100%
     
    cole, Jan 17, 2004
    #3
  4. nt

    SJC Guest

    Hi nt,

    I can help you out more easily if you tell me what you're doing it for.
    Are the images exactly the same (i.e. shots all taken at the same time
    for, say, long exposure shots created from many short exposures, or
    increased dynamic range etc)? Do you know about the different blending
    options?

    If they're the same, then it's easy. Just paste them both over the top
    of one another and they should be on seperate layers. Then you can set
    the layer blending method to 'difference' so that everything will look
    normal when they're perfectly aligned. When they're not aligned, then
    the areas that are not aligned will be black, or at least the wrong
    colour, depending on how it's set up. It will be obvious anyway.

    If they're slightly different, then you're going to have a lot of
    trouble, and it will be very fiddly.

    Try this, if they're the same...

    http://www.tawbaware.com/imgstack.htm
     
    SJC, Jan 17, 2004
    #4
  5. nt

    nt Guest

    Hi Russell, this is exactly what i wanted to know, it works perfectly.
    Before i was 'dragging' over the alternate frame onto the BG, hence the
    mis-alignment.
    thanks again,
    n.t.
     
    nt, Jan 17, 2004
    #5
  6. nt

    Ken Chandler Guest

    G'day n.t.

    Sorry I didn't understand your original question. If you would prefer to
    keep using the drag and drop method (I find it easier) hold down the shift
    key when dropping. This will center the dropped layer. If the dropped
    layer is the same size it will be perefectly alligned.

    Hope that useful for you.

    KC
     
    Ken Chandler, Jan 17, 2004
    #6
  7. nt

    nt Guest

    the shift key.. of course! dont know why i didnt try this before....
    thanks Ken
     
    nt, Jan 18, 2004
    #7
  8. Copy the new layer, set opacity to 50%
    then use arrow keys to move the image, instead of the mouse. I find it much
    easier! :)
    Cheers
    JG
     
    Jacek Gonsalves, Jan 18, 2004
    #8
  9. nt

    Sandy Barrie Guest

    Hi,

    you put each image on a layer, then link the layers, then go to align
    layers.

    Sandy
     
    Sandy Barrie, Jan 25, 2004
    #9
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