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Adjusting exposure in Photoshop

From: Processing Product Photos with Photoshop

Video: Adjusting exposure in Photoshop

Adjusting exposure and color correcting in Photoshop can This is fine for subtle adjustments, but with Curves gives me a similar adjustment.

Adjusting exposure in Photoshop

Adjusting exposure and color correcting in Photoshop can bring more detail and pop to your images. Learning how to adjust both black and white or grayscale in color images will help bring the best starting image to your repair. We're going to take a look at two pictures today, a grayscale and a color picture. In the grayscale image, if I want to make an adjustment, again, I'm going to work non-destructively using my adjustment layers. And I have four options to work with tonal corrections. Brightness and contrast, levels, curves, and exposure.

We'll take a look at each one of these. Brightness and contrast is good for subtle adjustments. I can use my brightness slider to increase or decrease the brightness, and the contrast to add or remove detail. This is fine for subtle adjustments, but with something like this it's not really going to give me the range that I need for this lower right hand corner which has a blown out corner. I want to concentrate on that area and adjust this appropriately. Levels allows me to go on and adjust based on a histogram. I have my shadows on the left, highlight on the right and a mid tone in the center.

This histogram allows me to adjust my images, and as I go through, I can adjust my highlights, shadows and mid tones until I get to the range that I'm looking for. The best part about using an adjustment layer is I have a layer mask built in, so I don't have to worry about the rest of the image. I can concentrate on the area that needs repair and then mask out the rest later on. Curves gives me a similar adjustment. I have an s curve here in the middle. And I have the same histogram readout. Highlights are on the left this time. And shadows are on the right.

All I have to do is grab the line in the middle and create an s curve to adjust. As I go higher in the range, the darker the color gets. And as I pull down and I go towards the bottom, the lighter the range gets. So I can adjust using curves to get a little more precise range compared to levels or brightness contrast. Finally, I have exposure. And exposure allows me to go in and adjust my exposure as if were shooting with my camera. And when I get into gamma correction, gamma correction is actually the correction levels.

So, as I go through, I change my exposure. And you can see, as I increase my gamma correction, the darker the image gets. And as I pull to the left, the lighter the image gets, so I can go through and adjust for this, and again, concentrating only on the areas that need adjustment and not worrying about the rest because I can mask those out. So, this looks pretty good. I've got a good tonal range here. So, here's before. Here's the after. And I'll be able to blend this in very easily later on using layer masks. For my color image, I want to adjust the screen on this mobile device.

So, I'm going to start by creating a selection. And there are many, many more adjustments that I can make regarding color, but I'm going to concentrate on one. Color Balance allows me to go in and make subtle color changes using a balance method. Cyan and red, magenta and green, and yellow and blue are set up as opposites. As I go in and adjust, I can effect the image and change the color range and the best part is, at the very bottom is a check box that says preserve luminosity. That's going to keep my tonal range, or my ink levels if you will, at the same adjustment area.

Up above, I have tone, shadows, and then tones and highlights. Shadows and highlights will adjust either one of those independently, but most of the color adjustment that you're going to be doing is actually in your mid-tones range. The shadows and highlights kind of fall into place as you're going along. S, I can go in, and I can intensify the purple of this flower very easily using Color Balance. In the next movie, we'll go through and talk about actual color correction using levels. And it's using the same method of Color Balance to adjust our colors.

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This video is part of

Image for Processing Product Photos with Photoshop
Processing Product Photos with Photoshop

46 video lessons · 4482 viewers

Kevin Stohlmeyer
Author

 
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  1. 1m 17s
    1. Welcome
      56s
    2. Using the exercise files
      21s
  2. 6m 41s
    1. Getting started
      50s
    2. Starting with the right photograph
      1m 55s
    3. Utilizing colored or white backgrounds in Photoshop
      1m 28s
    4. Setting up your tablet for detail work
      2m 28s
  3. 12m 37s
    1. Using RGB vs. CMYK color spaces
      1m 17s
    2. Using adjustment layers vs. the Adjustment menu
      2m 4s
    3. Adjusting exposure in Photoshop
      3m 47s
    4. Easy color adjustments using the two-pass method
      2m 59s
    5. Removing color casts from backgrounds
      2m 30s
  4. 16m 31s
    1. Retouching overview
      19s
    2. Setting up your file for nondestructive editing in Photoshop
      1m 26s
    3. Using filters to remove dust and scratches
      2m 58s
    4. Cleaning up your image with healing tools
      3m 49s
    5. Utilizing the Clone Stamp tool to its fullest potential
      2m 20s
    6. Understanding the Clone Source panel
      2m 48s
    7. Using the Content-Aware Patch and Spot Healing tools
      2m 51s
  5. 12m 40s
    1. When do you use a mask or a path?
      1m 15s
    2. Creating an accurate path using the Pen tool
      2m 51s
    3. Saving your work path and creating a clipping path
      1m 56s
    4. Making an initial selection with selection tools
      2m 14s
    5. Cleaning up your selection
      3m 3s
    6. Creating a layer mask from a selection
      1m 21s
  6. 10m 58s
    1. How does light affect your product's shadow?
      1m 17s
    2. Using the original source to create a shadow
      1m 51s
    3. Creating your own shadow using brushes
      2m 54s
    4. Adding realism to your shadow with filters
      2m 54s
    5. Using blending modes to add your shadow to the background
      2m 2s
  7. 10m 39s
    1. Enhancing the product
      17s
    2. Adding product labels with vector art
      1m 29s
    3. Transforming the label
      1m 48s
    4. Adding realistic highlights
      2m 47s
    5. Replacing product colors with adjustment layers
      2m 33s
    6. Using layer comps for alternative versions
      1m 45s
  8. 19m 10s
    1. What are ideal files for automation?
      45s
    2. How to create an action in Photoshop
      2m 5s
    3. The batch-automation process
      2m 25s
    4. Automating color correction
      1m 27s
    5. Automating shadow creation
      2m 14s
    6. Automating image sizes for print and the web
      1m 49s
    7. Using conditional actions in Photoshop
      2m 52s
    8. Outputting your file to multiple formats
      1m 31s
    9. Adding metadata using templates in Adobe Bridge
      1m 15s
    10. Batch renaming files using Adobe Bridge
      2m 47s
  9. 29s
    1. Next steps
      29s

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