Which tool or technique would you use to sharpen image edges while preserving texture?

Which tool or technique would you use to sharpen image edges while preserving texture?

• A. Gaussian Blur with a high radius.
• B. Blur Tool with large brush.
• C. Unsharp Mask or Smart Sharpen; adjust Amount, Radius, and Threshold.
• D. Liquify.

Answer: (C)

Sharpening edges without amplifying texture relies on selectively boosting contrast where true edges exist. Unsharp Mask and Smart Sharpen do this by creating a mask of the image and then adding back contrast only where edges lie. The three controls—Amount, Radius, and Threshold—let you tune exactly how strong the sharpening is (Amount), how wide the affected edge area is (Radius), and which tonal differences are treated as edges (Threshold). Using a small Radius with an appropriate Threshold lets you crisp up edges while keeping fine textures and noise from becoming exaggerated. The other tools don’t achieve this balance: Gaussian Blur with a high radius blurs the image, the Blur Tool with a large brush softens rather than sharpens, and Liquify distorts details. So the best approach is Unsharp Mask or Smart Sharpen, with careful adjustment of Amount, Radius, and Threshold.

Sharpening edges without amplifying texture relies on selectively boosting contrast where true edges exist. Unsharp Mask and Smart Sharpen do this by creating a mask of the image and then adding back contrast only where edges lie. The three controls—Amount, Radius, and Threshold—let you tune exactly how strong the sharpening is (Amount), how wide the affected edge area is (Radius), and which tonal differences are treated as edges (Threshold). Using a small Radius with an appropriate Threshold lets you crisp up edges while keeping fine textures and noise from becoming exaggerated. The other tools don’t achieve this balance: Gaussian Blur with a high radius blurs the image, the Blur Tool with a large brush softens rather than sharpens, and Liquify distorts details. So the best approach is Unsharp Mask or Smart Sharpen, with careful adjustment of Amount, Radius, and Threshold.