Results 1 to 12 of 12

Thread: Stitching problems ... help pls

  1. #1

    Default Stitching problems ... help pls

    Hi,

    got a problem here when stitching 6 photos of blue sky+mountains scenery.

    wat happens is after merging, it's obvious there are blocks of different shades of blue at the merging joints. my conclusion is that the 6 photos are exposed different, thus the blue sky is of diff shades.

    is there anyway i can do in photoshop like learn one shade of blue in one photo and then "paste" this shade settings to the rest.

    thank you much.

  2. #2

    Default

    ehhh, anyone can help


  3. #3

    Default

    no pic hard to determine the best method.
    try curves or match colour, or level.

  4. #4
    Member
    Join Date
    May 2003
    Location
    Singapore
    Posts
    334

    Default

    Is it definitely due to differences in exposure? Where you shooting with manual exposure and white balance settings?

    The other possibility to consider is lens fall off or vignetting.

  5. #5
    Member
    Join Date
    Jan 2002
    Location
    Bukit Batok West Avenue 2
    Posts
    1,734

    Default

    Got picture? Hee... Why recently so many questions on colour?
    Maybe can play around with colour balance as well to tweak the individual images if it's due to difference in WB.

    For digital, when you plan to stitch photos, you may want to use manual/preset white balance (or better RAW) instead of using auto WB so that the white balance is the same for every single shot of the stitch. This is of course on top of using the same exposure, and a fix and stable rotating point (i.e. tripod and center-of-lens tripod thread on camera to avoid difference in perspective for each shot).

  6. #6

    Default

    you need to
    - use M mode with 1 setting to capture all images
    - ensure lens without vignetting and no polariser
    - would be better to use a pano head
    See my Photo Gallery at the Clubsnap

  7. #7

    Default

    Quote Originally Posted by Flare
    This is of course on top of using the same exposure, and a fix and stable rotating point (i.e. tripod and center-of-lens tripod thread on camera to avoid difference in perspective for each shot).
    The rotation point of the camera & lens is at the nodal point.
    See my Photo Gallery at the Clubsnap

  8. #8
    Member
    Join Date
    Jan 2002
    Location
    Bukit Batok West Avenue 2
    Posts
    1,734

    Default

    Quote Originally Posted by megaweb
    The rotation point of the camera & lens is at the nodal point.
    Ops... okay me bad... thanks!

  9. #9

    Default

    Quote Originally Posted by ranger
    Hi,

    got a problem here when stitching 6 photos of blue sky+mountains scenery.

    wat happens is after merging, it's obvious there are blocks of different shades of blue at the merging joints. my conclusion is that the 6 photos are exposed different, thus the blue sky is of diff shades.

    is there anyway i can do in photoshop like learn one shade of blue in one photo and then "paste" this shade settings to the rest.

    thank you much.
    hi,
    attached the photo i'm referring to. you can see different shades of blue sky.

    any advise to be done on the photos to make the blue shades the same.

    thanks !


  10. #10

    Default

    This works for me. Others might suggest differ methods/approach.

    Don't stitch the pics together first.

    Just open 2 pics (not to complicate by opening all the pics at one go) - eg. if you have PIC001 & PIC002 opened. If you want PIC001 color tonal to be like PIC002. Then make PIC001 active and in PSCS go to:

    Image> Adjustments> Match Color> In the match color dialouge box go to Source drop down> select PIC002

    You should have a satisfactory result. If not play with the image options: Luminance; Color Intensity; Fade

    Hope this help.

  11. #11
    Member
    Join Date
    Jan 2005
    Location
    waiaung.deviantart.com
    Posts
    535

    Default

    There is a tool in photoshop called "patch" tool, which is usually hidden under the Healing Brush tool. It is very useful for this kind of situations.

    Sometimes... proper combination of
    "Match Colour Command"
    "Patch Tool"
    "Healing Brush Tool"
    "Clone Tool"
    "Dodge/Burn Tools"

    will help you achieve in better Photomerged (or Panoramic) images as you required.

    Cheers! and have fun Photomerging!
    (p.s. becareful, your image 1# and 2# are not properly alinged.)
    My Gallery at DeviantART http://waiaung.deviantart.com

  12. #12

    Default

    I think its best you head down to one of the libraries near your estate and get a photoshop CS book for reference. I think the Color Match tool is only available on photoshop CS.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •