Join Jan Kabili for an in-depth discussion in this video Reducing noise, part of Photoshop CS4 Essential Training.
If you shoot with a digital camera and use a high ISO, or if you are shooting in…dark circumstances, you are bound to get some digital noise in your photographs.…Fortunately Photoshop has a pretty good Noise Reduction filter built-in.…I am going to zoom into this image, so that you can see the noise in the backs…of these seals, and you can see it's particularly prevalent in the shadows.…To deal with this, I am going to come at the Filter menu at the top of the…screen, go down to Noise and choose Reduce Noise.…I could convert this file for Smart Filters first so that my filter would be re-editable.…
But I have shown you that in other movies, so I am going to move right on to Reduce Noise.…That opens this large dialog box where I see a preview of the image.…As long as the Preview box is checked, I could also preview my image out here,…but I just don't have room on my screen at the moment.…I am going to start by taking all these sliders over to the left to see the…image as it is without noise reduction.…
- Learning and customizing the interface and workspace
- Utilizing various manual and guided selection techniques
- Working with Adobe Camera Raw
- Adding special effects with layer styles and Smart Filters
- Creating Photomerge panoramas
- Optimizing photos for the web and creating web galleries
Skill Level Beginner
Q: How can artwork be transferred from Photoshop CS4 to Illustrator CS4 without the background?
A: Save the image in Photoshop’s native PSD format. The background in Photoshop must be transparent, meaning there should be no background layer. (To remove a background layer, move your artwork to a separate layer by selecting and copying the content, minus the background, to a new layer, and then delete the background layer. A checkboard pattern behind your image indicates transparent pixels.)
Q: How do I retouch an image I have of an old photograph I scanned?
A: There are a few courses that address image restoration. Check out the Photoshop CS4 Portrait Retouching Essential Training course, and for problems dealing specifically with old photographs, watch the Restoration movies in chapter 15 of the Enhancing Digital Photography with Photoshop CS2. Additionally, learn how to research and date photos with our Growing and Sharing Your Family Tree course.
Q: A client has asked for artwork to be delivered as JPEGs or BMP files in 16-bit format. In Photoshop CS4, there does not appear to be an option to save an image as a 16-bit JPEG. Is there a way to save JPEG files as 16-bit in Photoshop?
A: Unfortunately, JPEGs cannot be saved in 16 bit. JPEGs, by nature, are 8-bit. So if you open a high-bit image into Photoshop CS4, you will see no option in any of the save dialog boxes to save the file as a JPEG. You would first have to convert the image to 8 bit (by choosing Image > Mode > 8 bits/channel) and then save it as an 8-bit JPEG. If you open a high-bit image into Photoshop CS5, you will see the option to save it as a JPEG in the Save, Save As, and Save for Web dialog boxes. But the JPEG will not be saved as 16-bit. Instead, Photoshop will downsample it to 8-bit for you before saving it as JPEG.
Photoshop CS4 Power Shortcutswith Michael Ninness6h 21m Intermediate
Photoshop CS4: Image Adjustments in Depthwith Jan Kabili3h 46m Intermediate
Photoshop CS4 One-on-One: Advancedwith Deke McClelland20h 57m Intermediate
Photoshop CS4 Portrait Retouching Essential Trainingwith Chris Orwig12h 23m Intermediate
1. The Interface
6. Photo Manipulation
7. Photo Adjustments
8. Photo Retouching
9. Raw Processing in Adobe Camera Raw
12. Special Effects
13. Combining Images
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