(Gauss was a mathematician the Gaussian blur effect is based on his mathematical formulas.) Adjust the Radius slider until the proper blur amount appears in the window.
Click OK to apply the effect.Ĭhoose Filter, Blur, Gaussian Blur to open the Gaussian Blur dialog box. The amount of feathering you choose depends on the overall resolution of the image and the subject matter.
In the Feather Selection dialog box, specify the desired pixel value. For more on making selections in Photoshop, see Part 3, 'Selection Techniques.' In this example, I've selected the buildings on the right side of the image.įeathering softens the edges of a selection, helping it to blend with unselected areas. Using Photoshop's selection tools, select the area to which you want to apply the blur. Choose Filter, Sharpen, Unsharp Mask and follow the directions in Task 5 to sharpen the image. This is a good approach for images that are too soft to be remedied using the Unsharp Mask filter alone.Ĭhoose File, Open and select the file you want to modify.īegin by sharpening the image as much as you can. In this task, you intentionally soften the background areas of an image, making the subject appear sharper in comparison. Specifically, you can blur one area of your image to make the other area look sharper. Although it may sound paradoxical, you actually can use the Blur filter to sharpen an image.