You can use the Details tab in the Adobe Camera Raw dialog to really enhance your photos. This works great if you’d like to create custom settings for your raw files before you run the HDR or Photomerge commands. The Detail tab offers precise control over both sharpening an image as well as reducing noise. All raw images will need some sharpening. Noise on the other hand may not appear unless the image was shot with a high ISO setting or under low light.
1. Open a raw image with Adobe Photoshop. The Camera raw dialog will open.
2. Double-click the Zoom tool in the top toolbar to switch to 100% magnification.It’s easier to accurately judge both sharpening and noise at a 100% view.
3. Click the Details tab. In the Detail tab, you can adjust sharpening to bring out fine image details.
- Amount – Increases definition at the edges of an image. Use a lower amount for a cleaner image. When you open the file, Camera Raw plug-in calculates the settings to use based on camera model, ISO, and exposure compensation.
- Radius – Use a low number for fine detail and a higher number if the photo lacks much detail.
- Detail – Controls how much high-frequency information is sharpened in the image and how the edges are emphasized.
- Masking – This controls the edge of the mask. Using a value of zero means that everything receives the same amount of sharpening. A higher number will limit the sharpening to those areas near the strongest edges.
An easy way to tell how much masking to use is to hold down the Option (Alt) key while dragging. White areas will be sharpened while black areas are ignored (masked). Try this out, hold down the Option (Alt) key and drag slowly to the right. A value of 50 seems to be the right balance for this image.
4. Noise reduction controls let you remove extra grain from the image.
- Luminance – Reduces luminance noise. Set this to 10 for this image (it’s not very noisy).
- Luminance Detail – This sets a threshold for the noise reduction. Higher values preserve detail but can produce noisier results. Lower values tend to produce cleaner results but likely remove some detail.
- Luminance Contrast – This option works best for very noisy photos.
- Color – Reduces color noise.
- Color Detail – Use a higher value to protect detailed edges. A lower value preserves more color, but can result in color bleeding.
5. Toggle the check box for Preview to see the before and after states.