Operation Manual

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Processing and developing photos
Last updated 11/30/2015
Radius Adjusts the size of the details that sharpening is applied to. Photos with very fine details may need a lower
radius setting. Photos with larger details may be able to use a larger radius. Using too large a radius generally results
in unnatural-looking results.
Detail Adjusts how much high-frequency information is sharpened in the image and how much the sharpening
process emphasizes edges. Lower settings primarily sharpen edges to remove blurring. Higher values are useful for
making the textures in the image more pronounced.
Masking Controls an edge mask. With a setting of zero (0), everything in the image receives the same amount of
sharpening. With a setting of 100, sharpening is mostly restricted to those areas near the strongest edges.
Press Alt (Windows) or Option (Mac OS) while dragging a slider to see the areas being affected (white) versus the areas
masked out (black).
To turn off sharpening, set the Amount slider to zero (0) or click the Detail panel On/Off icon .
Video tutorial: Sharpen an image
Most digital photographs could benefit from a bit of sharpening. Learn the best ways to sharpen an image.
Reduce image noise
Image noise is 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 usually visible as colored artifacts in the image.
Photos taken with high ISO speeds or less-sophisticated digital cameras can have noticeable noise.
1 (Optional) Zoom in on the photo to at least 1:1 to better see image noise and the effects of the sliders.
2 Drag the 1:1 image preview in the Detail panel of the Develop module to see the area of the photo that looks grainy
or displays colored artifacts.
3 In the Noise Reduction area of the Detail panel, adjust any of the sliders. The first three sliders affect luminance
noise. The last two sliders affect color noise.
Luminance Reduces luminance noise.
Detail Controls the luminance noise threshold. Useful for very noisy photos. Higher values preserve more detail but
may produce noisier results. Lower values produce cleaner results but may also remove some detail.