resizing one image to the same size as another image?

Discussion in 'Photoshop' started by yawnmoth, Jan 22, 2008.

  1. yawnmoth

    yawnmoth Guest

    I have two nearly identical images. The larger one is black and white
    and the smaller one is color. I'd like to make the color image the
    same size as the black and white one and then change the Blend Mode so
    that I have a single image, with the color of the smaller image and
    the detail of the black and white image.

    Any ideas as to how I might go about doing this?
     
    yawnmoth, Jan 22, 2008
    #1
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  2. F1

    Image size

    Use the smaller of the two's pixels to resample the other, then layer.
     
    Sir F. A. Rien, Jan 22, 2008
    #2
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  3. yawnmoth

    Joel Guest

    Idea? why don't you just convert the COLOR to GREY then do whatever you
    want with them?
     
    Joel, Jan 22, 2008
    #3
  4. yawnmoth

    KatWoman Guest

    open the B&W picture
    open the color picture and drag teh thumbnail over to the BW picture
    put the layer of the color picture on COLOR or HUE or OVERLAY OR SCREEN
    adjust opacity if necessary
    resize it to match the BW shot
    save as PSD in case you want to adjust later
     
    KatWoman, Jan 23, 2008
    #4
  5. yawnmoth

    KatWoman Guest



    resize it to match the BW shot


    using>> edit>> transform scale>>>
    hold shift KEY pull from corners only
    or click little chain to keep proportions and click in the size box to
    scroll larger and smaller
     
    KatWoman, Jan 23, 2008
    #5
  6. Okay, I'm assuming there's a good reason why you can't just convert the
    colour image to BW.
    You can choose to tackle this problem the hard way or the easy way.

    The hard way is to overlay both images and then play with opacity, scale,
    rotation, distortion, perspective and alignment. A very time consuming, and
    possibly futile operation.

    The easy way is to let your computer do all the hard work for you.
    Open both images into photoshop.
    Click on *File*, select *Automate*, then *Photomerge*.
    When it asks you what files to use, select *Open files*, and make sure yuo
    have ticked the option to *Attempt to automatically align the images*.
    Next, you'll see a preview of the merged files. Ensure that you tick the
    options labelled *Pespective* and *Keep as layers*.
    Now click okay, and you should find you have a new image with two layers.
    Each layer having one of the two previous images, perfectly sized and
    aligned with each other.
     
    \(not quite so\) Fat Sam, Jan 23, 2008
    #6
  7. Because that is obviously not what the OP wants to do. He wants to use
    the *color* of one image, and the *luminosity* of the other. Perhaps
    because the black & white image shows more detail and sharpness than the
    color version, so he wants to get 'the best of both' by combining them.
     
    Johan W. Elzenga, Jan 23, 2008
    #7
  8. The bit where I said "I'm assuming there's a good reason why you can't just
    convert the colour image to BW" wasn't a criticism of the OP. Why would you
    think it was? And why would you think it implies I'm unaware of the various
    reasons for doing this sort of thing?
     
    \(not quite so\) Fat Sam, Jan 23, 2008
    #8
  9. yawnmoth

    Mike Guest

    It is clear that it wasn't a criticism, but as your original comment appeared to bear no relationship to the initial
    question (or any solution thereof), it had me wondering too.

    Mike
     
    Mike, Jan 23, 2008
    #9
  10. I can assure everyone that it wasn't my intention to mislead.
    I included that opening statement because another poster had replied to the
    OP with a statement telling him to simply convert the colour image to a BW
    one.
    I assumed that this wasn't what the OP wanted, as he wouldn't have asked the
    question if that was the case, and my opening sentence was intended to
    reflect that.
    Apparently it wasn't picked up that way. I apologise to the OP, and to
    everyone who was offended by my opening sentence.
     
    \(not quite so\) Fat Sam, Jan 23, 2008
    #10
  11. yawnmoth

    KatWoman Guest

    the OP asked to keep the DETAIL of the BW larger file makes perfect sense
    tome
    that a smaller color copy of same image is degraded in detail

    as the OP has not replied we can never know if he took any of the advice
    and if any of us got what he was asking


    me>> I thought if he knows blend mode why he doesn't know transform command?
     
    KatWoman, Jan 23, 2008
    #11
  12. yawnmoth

    yawnmoth Guest

    I have. Thanks, all!
     
    yawnmoth, Jan 24, 2008
    #12
  13. yawnmoth

    Joel Guest

    You DO NOT need to depend on whatever the OP want. or if you see the OP is
    shooting in the dark then you can shed some light.

    1. You just convert the Color to B&W then you have 2 100% identical images

    2. Then you can do whatever you want without having to care about the SIZE
    cuz they are exact same size.

    That's it!
     
    Joel, Jan 24, 2008
    #13
  14. I think you don't understand what the OP wants. He doesn't want to have
    a B&W picture, he wants to have a color picture. However, he wants to
    use the luminosity data of the B&W pictue for this color picture,
    because that will give him a more detailed/sharper color picture.
    Converting the color picture to B&W doesn't accomplish that. Anyway, I
    think the OP has all the information he needs.
     
    Johan W. Elzenga, Jan 25, 2008
    #14
  15. yawnmoth

    Joel Guest

    Then PLEASE explain to us what the OP wants as the OP has vanished after
    dropping the bomb here.

    I don't know what you understand but most of us don't, but I can only be
    able to make wild guess from what the OP posts and wants. Lets see

    - The OP has 2 images (1) COLOR (1) B&W almost identical except the B&W is
    little smaller than the COLOR

    - The OP wants to increase the B&W to same size as the COLOR

    That's it! and that's all we need to know, then I suggest

    - Convert the COLOR to B&W then s/he will have identical (1) COLOR (1) B&W

    .. and I do have problem understanding what you are trying to say. You
    say something about using B&W to improve the COLOR and as some of us have
    mentioned the OP can convert the COLOR to B&W then s/he can follow your
    suggestion (only after conversion).
     
    Joel, Jan 25, 2008
    #15
  16. yawnmoth

    KatWoman Guest

    from the OP

    The larger one is black and white
    and the smaller one is color.

    JOEL is beating his dead horse
    I have. Thanks, all!
     
    KatWoman, Jan 26, 2008
    #16
  17. No, that's not it. He clearly said that he wanted to "change the Blend
    Mode so that I have a single image, with the color of the smaller image
    and the detail of the black and white image." What part of this sentence
    don't you understand?
     
    Johan W. Elzenga, Jan 28, 2008
    #17
  18. yawnmoth

    Joel Guest

    Well, it's either we are talking about 2 different questions or you
    misread the question. This is what I remember what the OP said.

    - 2 images almost identical the B&W is little smaller than the COLOR image

    - The OP asks how to RESIZE the B&W image to match the size of COLOR image

    a. Of course we won't resize or resize isn't a right term or method to
    match the scale. But I don't want to correct the OP

    b. SCALE should be the right tool and better method than Resize.

    c. *But* converting the COLOR to B&W should be the best way to get 100%
    identical and exact SIZE

    That's what I read, so you may be reading other message?
     
    Joel, Jan 28, 2008
    #18
  19. Actually, the words you are about to read are an exact copy of what the OP
    said.

    "I have two nearly identical images. The larger one is black and white
    and the smaller one is color. I'd like to make the color image the
    same size as the black and white one and then change the Blend Mode so
    that I have a single image, with the color of the smaller image and
    the detail of the black and white image."
     
    \(not quite so\) Fat Sam, Jan 28, 2008
    #19
  20. We are not talking about two different questions and I did not misread
    the question either. In contrast to you, I do not try to *remember* what
    the OP said, I just went back to his original message and actually
    *read* it. Also, I read it *completely*. I did not stop reading half
    way, thinking that I already knew what he was asking. Maybe you should
    do the same thing, it would have saved both of us some time.
    Read the *entire* question, not just the first half. I was quoting
    *exactly* what the OP said, so there should be no difference in opinion
    about what the question was. Let me quote the OP again, in case you
    cannot find the original message any more:

    [/quote]
    I have two nearly identical images. The larger one is black and white
    and the smaller one is color. I'd like to make the color image the same
    size as the black and white one and then change the Blend Mode so that I
    have a single image, with the color of the smaller image and the detail
    of the black and white image.
    [/unquote]

    Please note the last part of the message, where the OP also explains
    *why* he wants to resize the color image... Does the word 'Blend Mode'
    ring a bell at all?... Does "a single image, with the color of the
    smaller image and the detail of the black and white image" ring a bell?
     
    Johan W. Elzenga, Jan 28, 2008
    #20
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