![]() ![]() This makes it easier to judge the effect but be sure to try other zoom levels as well. When you’re adjusting the Radius it’s a good idea to use the Affinity Photo Navigator Studio Panel to zoom in to 100%. When you increase the Radius to more than 10px, the effect becomes more like a Clarity adjustment. At low levels of 1px or less, there isn’t much of a sharpening effect. If you now adjust the Radius setting you’ll see the effect change. ![]() What’s happening is that the Overlay Blending Mode enhances the contrast along the edges detected by the High Pass filter. When you do this, you’ll see the image appear but this time it will be sharper. To create the sharpening effect, all we need to do is change the Blending Mode to be Overlay. The higher you make the Radius, the more the edges are emphasised, although the image remains a grey colour. What’s happening is that the High Pass filter is detecting the edges and emphasising these. This consolidates all the layers in the image into a new layer at the top of the Layer stack. You can do this by selecting “Layer | Merge Visible” from the Affinity Photo menu. It’s usually best to create a new layer to apply the filter to, even though you’re using a Live Filter. Given image sharpening with the High Pass filter can be difficult to judge, it’s probably best used as a Live Filter adjustment. You can also disable it as well as change the Opacity and Blending Moe. In contrast, the Live Filter attaches to the layer, but you can reopen and adjust the settings. All you can do is reduce the layer opacity or start again. This means you can’t subsequently reopen and adjust the filter settings. When you apply an Affinity Photo filter to an image, you apply it directly to the pixel image. You can apply the High Pass filter as either a standard Affinity Photo filter or as a Live Filter. In both, you’ll find the High Pass filter listed as a sharpening filter (although it can have other uses). Applying the Affinity Photo High Pass FilterĪffinity Photo has two menu entries for applying the High Pass filter. ![]()
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