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Common resolution standards

From: Photoshop CS6 One-on-One: Fundamentals

Video: Common resolution standards

In this movie, we'll discuss how to figure out the ideal resolution setting when you're printing an image. I've gone ahead and taken this low res image, and I've made a duplicate of it so that I can edit it independently and that will allow us to compare an upsampled version of the image to the original pixels. I did that by the way by just going up to the Image menu and choosing the Duplicate command, and that allows you to have two versions of the image that you can open independently. Now let's say that I want to print this image. I'll go up to the Image menu and choose the Image Size command.

Common resolution standards

In this movie, we'll discuss how to figure out the ideal resolution setting when you're printing an image. I've gone ahead and taken this low res image, and I've made a duplicate of it so that I can edit it independently and that will allow us to compare an upsampled version of the image to the original pixels. I did that by the way by just going up to the Image menu and choosing the Duplicate command, and that allows you to have two versions of the image that you can open independently. Now let's say that I want to print this image. I'll go up to the Image menu and choose the Image Size command.

And then, inside the Image Size dialog box, I will make sure that Resample Image is turned on for now because I want the image to remain the same size when it prints. I just want to modify the Resolution value independently and thereby upsample the image, that is, to say add pixels to it. Now notice that we have this Auto button over here. I'm going to click on it because I want to demonstrate what's going on. The ideal resolution value that everybody bandies about is 300 pixels per inch. I want to give you a sense of where that comes from because it's not always the resolution you want to use.

Notice that this Auto Resolution option offers a Screen value right here. When you take an image into a commercial printer, they're going to reproduce it using a series of tiny halftone dots typically printed in cyan, magenta, yellow, and black ink. The number of tiny halftone dots in a linear inch is known as the Screen Frequency. That's what this value right here is. Now one of the big print standards is 133 lines per inch. If you select the Draft Quality setting, the Resolution, and the Screen value will be the same.

So if I click OK now, I change the resolution value to 133 pixels per inch. That's a pretty low resolution value though. You're going to be able to see the pixels in your image. It's not going to look very smooth. So I'll go ahead and click Auto again. Screen is still set to the same value. If I switch over to Good, now we'll get a Resolution value that's one-and-a-half times that Screen value, or 200 pixels per inch. If I click Auto again and switch this option to Best, then Photoshop will set the Resolution value to twice the Screen value or 266 pixels per inch.

But the more typical standard for what it's worth is 267. And yet, if you go higher than that, if you set the resolution to something like 276 let's say, you're not really going to be able to tell the difference because once you have about 4 pixels per halftone dots, the perceived resolution really doesn't change. Now the other really common screen frequency in commercial printing is 150. If I set the Screen value to 150 and leave the Quality set to Best, click OK, and now I have a Resolution of 300 pixels per inch which is the print standard that you always hear about.

The other value that's worth knowing is 360 pixels per inch which is generally the best setting for high-quality inkjet output. Now about the lowest you want to go, and this is just a rule of thumb is 220 pixels per inch. And once again, all of these values are assuming that you're printing the image. If the image is ultimately intended for the web, none of this stuff matters. So those are the typical resolution settings, 220 at the low end, 267, and 300 for high-quality commercial printing and 360 for high-quality inkjet.

In the next movie, we'll see what it looks like to upsample an image.

Show transcript

This video is part of

Image for Photoshop CS6 One-on-One: Fundamentals
Photoshop CS6 One-on-One: Fundamentals

100 video lessons · 57590 viewers

Deke McClelland
Author

 
Expand all | Collapse all
  1. 19m 15s
    1. Welcome to One-on-One
      2m 27s
    2. Opening from the Windows desktop
      4m 7s
    3. Opening from the Macintosh Finder
      4m 9s
    4. Opening from Photoshop or Bridge
      2m 45s
    5. Opening an image from Mini Bridge
      1m 16s
    6. Opening through Camera Raw
      2m 32s
    7. Closing one image and Closing All
      1m 59s
  2. 38m 14s
    1. Navigating your image
      40s
    2. The dark vs. the light interface
      3m 12s
    3. Navigating tabs and windows
      4m 32s
    4. Panels and workspaces
      4m 27s
    5. Zooming incrementally
      4m 29s
    6. Zooming continuously
      2m 43s
    7. Entering a custom zoom value
      2m 25s
    8. Scrolling and panning images
      2m 31s
    9. Rotating and resetting the view
      2m 11s
    10. Cycling between screen modes
      3m 10s
    11. Using the Navigator panel
      3m 38s
    12. Adjusting a few screen prefs
      4m 16s
  3. 45m 58s
    1. Digital imaging fundamentals
      1m 45s
    2. Image size and resolution
      3m 3s
    3. The Image Size command
      3m 27s
    4. Common resolution standards
      3m 20s
    5. Upsampling vs. real pixels
      4m 36s
    6. Changing the print size
      6m 16s
    7. Downsampling for print
      4m 12s
    8. Downsampling for email
      3m 11s
    9. The interpolation settings
      5m 22s
    10. Downsampling advice
      4m 36s
    11. Upsampling advice
      6m 10s
  4. 53m 17s
    1. The layered composition
      1m 40s
    2. Introducing the Layers panel
      4m 12s
    3. Adding, scaling, and aligning layers
      5m 27s
    4. Dragging and dropping layers
      4m 36s
    5. Stack, reveal, and rename
      2m 58s
    6. Opacity, history, and blend mode
      6m 5s
    7. Duplicating a selected portion of a layer
      5m 32s
    8. Applying a clipping mask
      3m 58s
    9. Blending inside a clipping mask
      4m 10s
    10. Finishing off your artwork
      3m 13s
    11. Creating a new layer and background
      4m 24s
    12. Layering tips and tricks
      7m 2s
  5. 26m 19s
    1. The art of saving
      54s
    2. Four things to know about saving
      6m 0s
    3. Saving layers to PSD
      6m 38s
    4. Saving print images to TIFF
      4m 48s
    5. Saving an interactive image to PNG
      3m 41s
    6. Saving a flat photo to JPEG
      4m 18s
  6. 19m 36s
    1. Honing in on your image
      1m 43s
    2. The new and improved Crop tool
      3m 35s
    3. Editing your last crop
      3m 1s
    4. Straightening a crooked image
      2m 29s
    5. Filling in missing details
      6m 44s
    6. Using the Perspective Crop tool
      2m 4s
  7. 42m 6s
    1. First, there is brightness
      2m 12s
    2. How luminance works
      4m 18s
    3. The three Auto commands
      3m 27s
    4. Automatic brightness and contrast
      3m 19s
    5. The Brightness/Contrast command
      2m 47s
    6. The dynamic adjustment layer
      4m 5s
    7. Editing adjustment layers
      3m 52s
    8. Isolating an adjustment with a layer mask
      3m 31s
    9. Introducing the histogram
      4m 58s
    10. Measuring an adjustment
      3m 34s
    11. Using the Shadows/Highlights command
      6m 3s
  8. 44m 33s
    1. And second, there is color
      1m 31s
    2. Identifying a color cast
      3m 34s
    3. Correcting a color cast automatically
      3m 57s
    4. Changing the color balance
      6m 10s
    5. Compensating with Photo Filter
      3m 11s
    6. Adjusting color intensity with Vibrance
      3m 29s
    7. Correcting color cast in Camera Raw
      5m 46s
    8. The Hue/Saturation command
      5m 26s
    9. Summoning colors where none exist
      4m 8s
    10. Making more color with Vibrance
      4m 27s
    11. Making a quick-and-dirty sepia tone
      2m 54s
  9. 55m 46s
    1. Making selective modifications
      1m 10s
    2. The geometric Marquee tools
      6m 1s
    3. Aligning one image element to another
      4m 59s
    4. The freeform Lasso tools
      3m 59s
    5. Polygonal Lasso tool and Quick Mask
      5m 19s
    6. Cropping one selection inside another
      6m 15s
    7. Creating rays of light
      4m 44s
    8. Quick Selection and Similar
      4m 11s
    9. Making it better with Refine Edge
      4m 56s
    10. Integrating image elements
      2m 39s
    11. Magic Wand and Grow
      5m 17s
    12. Refine, integrate, and complete
      6m 16s
  10. 53m 49s
    1. Your best face forward
      1m 0s
    2. Content-Aware Fill
      6m 11s
    3. Using the Spot Healing Brush
      5m 36s
    4. The more capable "standard" Healing Brush
      5m 55s
    5. Meet the Clone Source panel
      3m 53s
    6. Caps Lock and Fade
      4m 57s
    7. The Dodge and Burn tools
      5m 1s
    8. Adjusting color with the Brush tool
      6m 35s
    9. Smoothing skin textures
      5m 58s
    10. Brightening teeth
      4m 0s
    11. Intensifying eyes
      4m 43s
  11. 51s
    1. Goodbye
      51s

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