CertiPort Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

The method of sharpening the edges of an image in the Background layer is accomplished most effectively by applying the 'Filter' > 'Sharpen' > 'Unsharp Mask.' This technique is specifically designed to increase the contrast along the edges in an image, which creates the perception of greater sharpness. The Unsharp Mask works by examining pixel values in the area surrounding a specific pixel, enhancing those with values that are significantly different. This results in a clearer and more defined appearance of edges.

While there are other options available to adjust the image's sharpness, the Unsharp Mask filter is particularly favored because it provides fine control over how much sharpening is applied and allows for adjustments to the radius and threshold, giving the user the ability to tailor the effect to their specific needs. Other methods, like merely enhancing through menu options or using a generic adjustments menu, may not provide the same level of precision or quality in sharpening as the Unsharp Mask does.