In this exercise we are going to talk about digital noise and what you can do to…reduce its effects here inside Photoshop.…I am working in a file called Ten years younger.jpg, found inside the…exercise files folder.…Now, even this far zoomed out you may be able to see the noise inherent in this…image, but I am going to zoom in even farther into the Shadow detail in the…lower left region of this image.…Now, digital noise is random variations in the color and luminance of…neighboring pixels, and these random variations have nothing to do with the way…the scene looked in real life.…
The camera invented this noise during the capture process, so you might think of…noise as being the digital equivalent of grain in the old film days.…Now, thanks to the way that cameras capture light, noise is always going to be…most evident in the Shadow detail, and that's because the camera, in order to…convert the image to the way that we see the world, has to automatically…compress the Highlight detail and expand the Shadow detail.…
Author
Released
8/18/2011For a guide to getting started with designs and artwork in Photoshop, check out Up and Running with Photoshop for Design.
- Retrieving photos from a camera
- Adding copyright and metadata
- Adjusting brightness, contrast, levels, and hues
- Converting an image to black and white
- Fixing red-eye and blemishes
- Straightening a crooked image
- Sharpening details and reducing noise
- Working with selections and layers
- Saving an image for the web
Skill Level Intermediate
Duration
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Introduction
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Welcome1m 43s
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1. Image File Essentials
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Getting around an image6m 43s
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2. Basic Color Adjustments
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Using adjustment layers6m 50s
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Adjusting levels and hues6m 51s
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3. Correcting in Camera Raw
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Correcting white balance7m 39s
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Using Exposure controls6m 31s
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Fixing chromatic aberrations5m 22s
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4. Retouching
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Correcting red-eye3m 4s
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Dodging and burning details7m 40s
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Healing blemishes8m 55s
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Covering up unwanted details8m 14s
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5. Cropping and Resolution
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6. Filter Essentials
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Reducing digital noise7m 3s
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Sharpening edge details6m 48s
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7. Selections and Layers
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Working with layers8m 35s
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8. Merging and Saving
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Making a panorama8m 2s
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Saving your image8m 15s
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Saving for the web7m 20s
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Conclusion
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Next steps1m 5s
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Video: Reducing digital noise