Easy-to-follow video tutorials help you learn software, creative, and business skills.Become a member

Ghosting and Photoshop

From: Shooting and Processing High Dynamic Range Photographs (HDR)

Video: Ghosting and Photoshop

If you are shooting at bracketed set of HDR source images and something in your scene moves between shots, you can end up with a ghosting problem. This is actually a pretty intuitive thing. Let's take a look at this set. I am going to switch over here to Filmstrip mode so we get a bigger view. While taking their shot, these kids moved and so if I take these three images and mush them together, we get a problem because in this image there is an arm here, and in this image there is not. So what should it choose to do with these things? Of course, it doesn't know from arms, and so what it will end up doing is putting half arm and half lovely hillside, and I will get this kind of semi-transparent arm over this hill.

Ghosting and Photoshop

If you are shooting at bracketed set of HDR source images and something in your scene moves between shots, you can end up with a ghosting problem. This is actually a pretty intuitive thing. Let's take a look at this set. I am going to switch over here to Filmstrip mode so we get a bigger view. While taking their shot, these kids moved and so if I take these three images and mush them together, we get a problem because in this image there is an arm here, and in this image there is not. So what should it choose to do with these things? Of course, it doesn't know from arms, and so what it will end up doing is putting half arm and half lovely hillside, and I will get this kind of semi-transparent arm over this hill.

That's called ghosting because you end up with these kinds of ghostly figures in your scenes. Fortunately, most HDR processing software today has a ghost removing mechanism of some kind. We are going to look at Photoshop so I am going to just launch right into a merge here which I do just like I always would. Select my images in Bridge and then launch the Merge to HDR process. And when it's done, I get my normal Tone Mapping dialog box. First thing I am going to do is switch over here to 16 bit. So let's take a look at what we got here. I am going to zoom in a little bit to the area in question and you can see we got a lot of ghosting problems.

We've got several arms here. We've got a ghost of an arm here, so moving on the pants like two to three feet down here, and a kind of shaky head up here and some shaky shoulders. These kids aren't super sharp either because they were moving around a little bit. So it's time to remove some ghosts. I can do that by clicking the Remove ghosts checkbox and when I do that, Photoshop thinks for a bit, and then when it's done, it's done an okay job. I've lost some ghosting up here. Still got some down here. These kids are looking a little sharper.

There is something weird about the edges of them. That may just be zoom level. No, they are actually a little bit weird, and it shows me which image it has chosen to be the primary image. The one that gets selected to have prominence over other background elements. If I want, I can change that. I can just click on another one of these images, and it changes around. This one is working better. We look here at the one that it had chosen, I have got all these problems with his pants on both sides. Here that clears up.

There's a little problem around his head, but I think I could clone that out very easily. Let's look at the third one. Now this one is definitely not usable. I am going with this one. Now notice, as I'm changing around, it has no bearing on any other part of my HDR process. So it's not affecting my exposure at all. It's not affecting the overall merge. So, now I could go in and adjust my exposure parameters as I like and do the rest of my HDR process. Hit OK, go into Photoshop, and then I want to touch up the little bits that it didn't quite get.

So that's ghost removal in the HDR Merge in Photoshop.

Show transcript

This video is part of

Image for Shooting and Processing High Dynamic Range Photographs (HDR)
 
Expand all | Collapse all
  1. 6m 46s
    1. Welcome
      2m 0s
    2. What you need for this course
      2m 37s
    3. Using the exercise files
      2m 9s
  2. 24m 55s
    1. Dynamic range defined
      4m 31s
    2. Understanding bit depth
      3m 37s
    3. Image sensor and shadows
      2m 38s
    4. Three methods for capturing more dynamic range
      3m 56s
    5. HDR shooting and processing
      4m 40s
    6. Single-shot HDR
      2m 43s
    7. When to use HDR
      2m 50s
  3. 19m 59s
    1. Finding HDR subject matter
      4m 38s
    2. Shooting HDR
      9m 45s
    3. Workflow and organization
      5m 36s
  4. 17m 52s
    1. Using gradient masks to improve dynamic range
      3m 56s
    2. More dynamic range masking
      8m 57s
    3. Masking with brushes
      4m 59s
  5. 1h 35m
    1. Creating an HDR image in Photoshop
      12m 15s
    2. Creating an HDR image in Photomatix
      22m 5s
    3. Creating an HDR in HDR Efex
      11m 47s
    4. Merging in Photoshop and processing elsewhere
      3m 51s
    5. Using Tone Compressor in Photomatix
      4m 25s
    6. Using Exposure Fusion in Photomatix
      7m 35s
    7. Single-shot HDR images in Photomatix
      4m 18s
    8. Single-shot HDR images in HDR Efex
      1m 3s
    9. Single-shot HDR images in Photoshop
      5m 32s
    10. Ghosting and Photoshop
      2m 51s
    11. Ghosting and HDR Efex
      2m 47s
    12. Ghosting and Photomatix
      6m 36s
    13. Batch processing in Photomatix
      10m 51s
  6. 2h 9m
    1. Reducing noise and correcting chromatic aberrations
      13m 33s
    2. Finishing an image
      8m 42s
    3. Handling HDR images that are "flat"
      13m 37s
    4. Combining HDR and LDR
      19m 40s
    5. Selective editing with HDR Efex Pro
      9m 42s
    6. HDR that doesn't look like HDR
      12m 42s
    7. Tone mapping troubles to watch for
      6m 46s
    8. Why use HDR for black-and-white images?
      5m 26s
    9. Black-and-white HDR
      12m 39s
    10. Panoramic HDR
      12m 3s
    11. HDR time lapse
      4m 24s
    12. Processing the trestle image
      10m 1s
  7. 37s
    1. Goodbye
      37s

Start learning today

Get unlimited access to all courses for just $25/month.

Become a member
Sometimes @lynda teaches me how to use a program and sometimes Lynda.com changes my life forever. @JosefShutter
@lynda lynda.com is an absolute life saver when it comes to learning todays software. Definitely recommend it! #higherlearning @Michael_Caraway
@lynda The best thing online! Your database of courses is great! To the mark and very helpful. Thanks! @ru22more
Got to create something yesterday I never thought I could do. #thanks @lynda @Ngventurella
I really do love @lynda as a learning platform. Never stop learning and developing, it’s probably our greatest gift as a species! @soundslikedavid
@lynda just subscribed to lynda.com all I can say its brilliant join now trust me @ButchSamurai
@lynda is an awesome resource. The membership is priceless if you take advantage of it. @diabetic_techie
One of the best decision I made this year. Buy a 1yr subscription to @lynda @cybercaptive
guys lynda.com (@lynda) is the best. So far I’ve learned Java, principles of OO programming, and now learning about MS project @lucasmitchell
Signed back up to @lynda dot com. I’ve missed it!! Proper geeking out right now! #timetolearn #geek @JayGodbold
Share a link to this course

What are exercise files?

Exercise files are the same files the author uses in the course. Save time by downloading the author's files instead of setting up your own files, and learn by following along with the instructor.

Can I take this course without the exercise files?

Yes! If you decide you would like the exercise files later, you can upgrade to a premium account any time.

Become a member Download sample files See plans and pricing

Please wait... please wait ...
Upgrade to get access to exercise files.

Exercise files video

How to use exercise files.

Learn by watching, listening, and doing, Exercise files are the same files the author uses in the course, so you can download them and follow along Premium memberships include access to all exercise files in the library.


Exercise files

Exercise files video

How to use exercise files.

For additional information on downloading and using exercise files, watch our instructional video or read the instructions in the FAQ .

This course includes free exercise files, so you can practice while you watch the course. To access all the exercise files in our library, become a Premium Member.

Join now Already a member? Log in

Are you sure you want to mark all the videos in this course as unwatched?

This will not affect your course history, your reports, or your certificates of completion for this course.


Mark all as unwatched Cancel

Congratulations

You have completed Shooting and Processing High Dynamic Range Photographs (HDR).

Return to your organization's learning portal to continue training, or close this page.


OK
Become a member to add this course to a playlist

Join today and get unlimited access to the entire library of video courses—and create as many playlists as you like.

Get started

Already a member ?

Become a member to like this course.

Join today and get unlimited access to the entire library of video courses.

Get started

Already a member?

Exercise files

Learn by watching, listening, and doing! Exercise files are the same files the author uses in the course, so you can download them and follow along. Exercise files are available with all Premium memberships. Learn more

Get started

Already a Premium member?

Exercise files video

How to use exercise files.

Ask a question

Thanks for contacting us.
You’ll hear from our Customer Service team within 24 hours.

Please enter the text shown below:

The classic layout automatically defaults to the latest Flash Player.

To choose a different player, hold the cursor over your name at the top right of any lynda.com page and choose Site preferences from the dropdown menu.

Continue to classic layout Stay on new layout
Exercise files

Access exercise files from a button right under the course name.

Mark videos as unwatched

Remove icons showing you already watched videos if you want to start over.

Control your viewing experience

Make the video wide, narrow, full-screen, or pop the player out of the page into its own window.

Interactive transcripts

Click on text in the transcript to jump to that spot in the video. As the video plays, the relevant spot in the transcript will be highlighted.

Are you sure you want to delete this note?

No

Your file was successfully uploaded.

Thanks for signing up.

We’ll send you a confirmation email shortly.


Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

Keep up with news, tips, and latest courses with emails from lynda.com.

Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

   
submit Lightbox submit clicked
Terms and conditions of use

We've updated our terms and conditions (now called terms of service).Go
Review and accept our updated terms of service.