New Feature: Playlist Center! Pick a topic and let our playlists guide the way—like a learning mixtape.

Start learning with our library of video tutorials taught by experts. Get started

Photoshop CS5: Landscape Photography
Illustration by

Working with noise reduction


From:

Photoshop CS5: Landscape Photography

with Ben Long

Video: Working with noise reduction

Throughout all of this talk of brightening and darkening images there is one important caveat that hasn't been mentioned. Sometimes there is a price to pay for brightening an image, and that price is noise. Some images actually come out of your camera with noise. Here's one right here, and if are not familiar with noise, this should make it pretty obvious what noise is. Less ugly noise sometimes just looks like film grain. Noise like this looks like little colored specks all over the place. There are two different kinds of noise; Luminance noise, which changes in brightness, that just look like film grain, and Chrominance noise.
Expand all | Collapse all
  1. 3m 14s
    1. Welcome
      1m 44s
    2. Using the exercise files
      1m 30s
  2. 46m 35s
    1. Defining landscape photography
      2m 23s
    2. Considering cameras and gear
      10m 41s
    3. Shooting and composition tips
      6m 39s
    4. Why you should shoot raw instead of JPEG
      4m 25s
    5. Making selects
      10m 42s
    6. Understanding the histogram
      6m 53s
    7. A little color theory
      4m 52s
  3. 1h 14m
    1. Opening an image
      4m 42s
    2. Cropping and straightening
      9m 56s
    3. Nondestructive editing
      6m 23s
    4. Spotting and cleanup
      3m 53s
    5. Cleaning the camera sensor
      11m 17s
    6. Lens correction
      6m 26s
    7. Correcting overexposed highlights
      7m 29s
    8. Basic tonal correction
      5m 45s
    9. Correcting blacks
      11m 54s
    10. Correcting white balance
      6m 35s
  4. 21m 34s
    1. Performing localized edits with the Gradient Filter tool
      7m 24s
    2. Performing localized edits with the Adjustment brush
      7m 54s
    3. Controlling brush and gradient edits
      6m 16s
  5. 16m 34s
    1. Working with noise reduction
      5m 33s
    2. Clarity and sharpening
      5m 23s
    3. Exiting Camera Raw
      5m 38s
  6. 58m 5s
    1. Retouching
      8m 23s
    2. Using Levels adjustment layers
      10m 59s
    3. Saving images with adjustment layers
      4m 18s
    4. Advanced Levels adjustment layers
      9m 36s
    5. Guiding the viewer's eye with Levels
      8m 48s
    6. Using gradient masks for multiple adjustments
      5m 32s
    7. Correcting color in JPEG images
      3m 15s
    8. Adding a vignette
      3m 25s
    9. Knowing when edits have gone too far
      3m 49s
  7. 33m 24s
    1. Preparing to stitch
      5m 59s
    2. Stitching
      7m 39s
    3. Panoramic touchup
      7m 17s
    4. Shooting a panorama
      4m 58s
    5. Stitching a panorama
      7m 31s
  8. 27m 18s
    1. Shooting an HDR Image
      7m 53s
    2. Merging with HDR Pro
      11m 52s
    3. Adjusting and retouching
      7m 33s
  9. 24m 4s
    1. Why use black and white for images?
      2m 26s
    2. Black-and-white conversion
      7m 13s
    3. Correcting tone in black-and-white images
      7m 38s
    4. Adding highlights to black-and-white images
      6m 47s
  10. 49m 32s
    1. Painting light and shadow pt. 1
      11m 22s
    2. Painting light and shadow pt. 2
      12m 42s
    3. Painting light and shadow pt. 3
      9m 19s
    4. HDR + LDR
      5m 7s
    5. Reviewing sample images for inspiration
      11m 2s
  11. 48m 2s
    1. Sizing
      9m 8s
    2. Enlarging and reducing
      5m 3s
    3. Saving
      1m 24s
    4. Sharpening
      8m 23s
    5. Outputting an electronic file
      9m 4s
    6. Making a web gallery
      4m 17s
    7. Printing
      10m 43s
  12. 20s
    1. Goodbye
      20s

Watch this entire course now—plus get access to every course in the library. Each course includes high-quality videos taught by expert instructors.

Become a member
please wait ...
Photoshop CS5: Landscape Photography
6h 43m Intermediate Jul 13, 2010

Viewers: in countries Watching now:

In Photoshop CS5: Landscape Photography, Ben Long outlines a full, shooting-to-output workflow geared specifically toward the needs of landscape photographers, with a special emphasis on composition, exposure enhancement, and retouching. This course also covers converting to black and white, using high-dynamic range (HDR) imaging techniques to capture an image that’s closer to what your eye sees, and preparing images for large-format printing. Learn to bring back the impact of the original scene with some simple post-processing in Photoshop. Exercise files are included with the course.

Topics include:
  • Getting the shot: landscape-specific shooting tips and tricks
  • Choosing the right equipment
  • Cropping and straightening images
  • Making localized color and tonal adjustments
  • Reducing noise
  • Guiding the viewer’s eye with localized adjustments
  • Adding a vignette
  • Using gradient masks to create seamless edits
  • Approaching adjustments like a painter–thinking in light and shadow
  • HDR imaging
  • Creating panoramas: shooting and post-processing techniques
Subject:
Photography
Software:
Photoshop
Author:
Ben Long

Working with noise reduction

Throughout all of this talk of brightening and darkening images there is one important caveat that hasn't been mentioned. Sometimes there is a price to pay for brightening an image, and that price is noise. Some images actually come out of your camera with noise. Here's one right here, and if are not familiar with noise, this should make it pretty obvious what noise is. Less ugly noise sometimes just looks like film grain. Noise like this looks like little colored specks all over the place. There are two different kinds of noise; Luminance noise, which changes in brightness, that just look like film grain, and Chrominance noise.

And this image has a combination of both Chrominance noise being color splotches, sometimes they are big sometimes they are speckling patterns like this. Noise is simply a function of the electronics in your camera, just as if you turn up the amplifier on your stereo, you'll hear more noise and your music, that hissing sound. Same thing with your camera's electronics. There is noise alongside the signal of the image information that's passing around inside your camera. Fortunately, with Camera RAW 6.0, which is the Camera RAW that's included in Photoshop CS5, Adobe has included some new really wonderful noise reduction technology.

And here in the Detail tab, you'll find the noise reduction controls. So as I mentioned there are two types of noise. They give us controls for Luminance and Color noise. I'm going to zoom in here to around 50%. Now, one thing about noise. It's very easy to zoom in to an image and see this and go, well, this image is just useless. But bear in mind when you are looking at an image at 100%, you're looking at individual pixels. On an 8 or 10 mega pixel camera, a single pixel is a teeny, teeny, teeny, tiny little space.

In a print, particularly a small print, like a 4x6 or even an 8x10, you're never going to see an individual pixel. So lot of the noise in your image is simply going to be sampled out when the image is sized for a final print. So don't go too nuts when you see noise in an image, or any defect in an image at 100%. Nevertheless, this image is noisy, and this would show up in print. So we're going to do what we can to reduce the noise using the Noise Reduction controls. We're going to start with Chrominance noise, and I'm just going to slide this, and already you can see most of the Color noise disappearing.

And it's kind of about all you have to do for noise reduction in Camera RAW. Color Detail helps you preserve detail in your image while you're reducing noise, and this is always the balance you're trying to seek with noise reduction technology of any kind. As you reduce noise, you sometimes soften the image, and so these Color Detail sliders help you preserve more detail on your image. There is still a little bit of, if you kind of squint your eyes or revert your eyes a little bit, you'll see there's maybe some Magenta noise, a big patch on it right there and some here, and there is some green kind of big splotches.

The chances of those showing up in print are pretty small actually, so that's done a good job on our Chrominance noise. Now let's look at the Luminance noise, and Luminance noise is something you really can only judge at 100%, but again, bad Luminance noise at 100% doesn't mean bad Luminance noise in a print. I'm going to drag the Luminance slider to the right, and that's done a very good job. It's just taken the edge off the noise. I can play with Luminance Detail, again to control the balance between the blurring that is eliminating the noise and the overall softening of the image that results from that, and I can increase the contrast that's left behind.

So it's kind of mostly just a process of balancing these sliders until you get a level of noise reduction that you'd like. So zooming back out to full size, even a full size there is a pretty dramatic difference in this image, but let's zoom back in here and do it before and after. This is before, and this is after. So Photoshop is done an exceptional job in reducing the noise. Now, whether this is the right level of noise reduction or not, I can't say until I print the image. If my goal was to output this as an electronic file for e-mail or something, then I could go through the process of sizing it the way I want, spitting it out and seeing if my noise is okay there.

But if my ultimate goal is printing of a certain size, I need to do a test print to determine if my noise Reduction has been effective. You are mostly going to get noise troubles in low light images, if you're using any kind of modern digital camera. For example, here's an image shot strictly by the light of a full moon in Monument Valley, very late at night. And this was shot at ISO 1600 on a Canon 5D Mark II, and if I zoom into 100% here, you can see that even at ISO 1600, the camera is still doing a very good job of keeping noise down, but it is there.

When assessing a camera for landscape shooting, noise response is something you really want to take a look at, particularly if you have any intention of shooting in low light. But even shooting in just dim light, like at dusk where you'll have deep shadows, those shadow areas are going to be more prone to noise, so you want to try and find a camera that can handle them well. You shouldn't be seeing any noise at bright daylight with just about any camera. If you are, there is a chance that you have set the ISO too high, so you need to get it back down. As I mentioned before, noise reduction is often something that you do in concert with sharpening, and that's why the Sharpening and Noise Reduction controls in Camera RAW are side-by-side, and we will be taking a look at sharpening next.

There are currently no FAQs about Photoshop CS5: Landscape Photography.

 
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.
Upgrade now


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 Upgrade now

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 Photoshop CS5: Landscape Photography.

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 preferencesfrom 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

Notes cannot be added for locked videos.

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.