Nikon 25338 User Manual - Page 231

Unsharp Mask Unsharp Mask Unsharp Mask sharpens edges without affecting color balance by making adjustments only to luminosity (brightness). The effect is the same as performing Unsharp Mask with the Luminosity channel selected in the Adobe Photoshop Lab color model. If Unsharp Mask is applied to a single channel, such as red, the values for ab (chrominance) are used to determine what points in the image are red, and Unsharp Masking applied to the Luminosity channel for those points only. An intensity of around 20% in Capture NX is roughly equivalent to 100% in Adobe Photoshop. No sharpening will be applied if Intensity is set to zero. Intensity must be set to at least 1% if sharpening is to apply. 225 Batch Processing Before Using Batch Processing To ensure that desired results are achieved, we recommend processing a test image before beginning batch processing. Batch processing will apply the same adjustments to each image selected, and cannot be used to adjust settings separately for each image; instead, the images must be opened one at a time in order to make separate adjustments manually for each image. Error Messages If an invalid file name or other error is identified while creating a batch process, a message will be displayed. Review the message and adjust the batch settings as directed in the message. Appendix Advisories & Additional Notices Color Aberration Control Lateral Chromatic Aberration The refractive index of the lens varies slightly with the wavelength (color) of light. This results in changes in image magnification towards the edges of the image, producing a phenomenon known as lateral (or transverse) chromatic aberration.