Adobe 29180155 - Photoshop Elements 4.0 Tutorial page 199

Note: The Digital Negative (DNG) format is Adobe's proposed standard format for camera raw files. DNG files are useful for
archiving camera raw images because they contain the raw camera sensor data and data specifying how the image should
look. Camera raw image settings can be stored in DNG files instead of in sidecar XMP files or the camera raw database.
Adjust sharpness in camera raw files
The Sharpness slider adjusts the image sharpness to provide the edge definition you want. The Sharpness adjustment is a variation of the Adobe
Photoshop Unsharp Mask filter. This adjustment locates pixels that differ from surrounding pixels based on the threshold you specify, and
increases the pixels' contrast by the amount you specify. When opening a camera raw file, the Camera Raw plug-in calculates the threshold to use
based on the camera model, ISO, and exposure compensation. You can choose whether sharpening is applied to all images or to previews.
1. Zoom the preview image to at least 100%.
2. Click the Detail tab.
3. Move the Sharpness slider to the right to increase sharpening and to the left to decrease it. A value of zero turns off
sharpening. In general, set the Sharpness slider to a lower value for cleaner images.
If you don't plan to edit the image extensively in Photoshop Elements, use the camera raw Sharpness slider. If you do plan
to edit the image extensively in Photoshop Elements, turn off camera raw sharpening. Then use the sharpening filters in
Photoshop Elements as the last step after all other editing and resizing are complete.
Reducing noise in camera raw images
The Detail tab in the Camera Raw dialog box contains controls for reducing image noise—the extraneous visible artifacts that degrade image
quality. Image noise includes luminance (grayscale) noise, which makes an image look grainy, and chroma (color) noise, which is visible as
colored artifacts in the image. Photos taken at high ISO speeds or with less sophisticated digital cameras can have noticeable noise.
Moving the Luminance Smoothing slider to the right reduces grayscale noise, and moving the Color Noise Reduction slider to the right reduces
chroma noise.
When making Luminance Smoothing or Color Noise Reduction adjustments, it's a good idea to preview images at 100% for a better view.
Moving the Luminance Smoothing slider to the right reduces grayscale noise.
Save changes to camera raw images
You can save changes you've made to a camera raw file. The Camera Raw dialog box saves the camera raw image with your changes in a .dng
file. Saving the file does not automatically open it in Photoshop Elements. (To open a camera raw file, use the Open command, like you would with
any other file. Then you can edit and save the file like any other image.)
1. In the Camera Raw dialog box, apply adjustments to one or more camera raw images.
2. Click the Save Image button.
3. In the Save Options dialog box, specify where to save the file and how to name the file if you're saving more than one camera
raw file.
New options in Photoshop Elements 11:
Embed Fast Load Data: Embeds a much smaller copy of the raw image in the DNG file, to enhance the speed at which
the raw image is previewed.
Use Lossy Compression: Reduces the file size of your DNG file, and causes loss of quality. Recommended only for the
raw images that are to be stored for archival purposes, and will never be used for printing or production (other use).
4. Click Save.
To the top
To the top
To the top
To the top