EQ8 has 9 different filters that can be applied to images, including sharpen/unsharp, and edge detection. Start with an image on the worktable. Click Special Effects in the ribbon, and then click the Filters tool in the palette.
The Image Filters dialog will display. Use the menu at the top of the dialog to choose a filter. Each filter works differently and has its own controls for making adjustments to that filter. You can always preview the results right in the dialog. To see the change on the worktable, click the Preview button. If you want to save the image, click the Add to Sketchbook button.
Be aware that if you’re using large, high-resolution images, your project file will become large and EQ8 could run more slowly.