Soft Light creates a more subtle and lower contrast sharpening. You can try setting your blending mode to Soft Light instead of Overlay.Changing the blending mode to “Overlay” before applying the High Pass filter will allow you to preview the sharpening effect while you adjust the slider to select your radius value. If you are having trouble selecting a radius value, you can reverse steps 2 and 4.That is caused by using a radius that is too large, and the only way to fix this is to go back and start again with the High Pass Filter set to a lower radius value. This will work unless the problem is that white fringing as discussed earlier. If your image appears over-sharpened and you want to reduce the sharpening effect you can simply reduce the opacity of the High Pass layer.Here are some ways you can try to adjust and control your image sharpening: Step 6: Adjusting the SharpeningĪs I mentioned in the beginning of this article, one of the things I love about the High Pass sharpening method is how adjustable and flexible it is. The sharpening effect is especially visible in the buildings and the bridges. Step 4: Change the blending mode of the High Pass layer to “Overlay.” The final, sharpened image.
Look for too much contrast or for white fringing that signal an over-sharpened image. You can toggle the layer on and off (using the eye to the left of the layers thumbnail image) to better see and evaluate the effect of the sharpening. If you are happy with the result then you can stop here and enjoy your sharpened image. Make sure the top layer (the one with the High Pass Filter applied) is highlighted, then change the blending mode to “Overlay”. Step 4: Change the Layer Blending Mode to “Overlay” Once you have the radius selected click “Ok” to apply the filter. This allows all of the detail to appear, but the edges are still thin and embossed in appearance. As we proceed through the steps if you find that your image contains white fringes or “halos” then it is a sure sign your radius is too large. If in doubt, choose a smaller radius over a larger. Sharpening itself is somewhat subjective and you will still have some additional control over the sharpening after the filter is applied. There is a range of acceptable radius values. The edges appear thick, like someone traced the outline, rather than embossed, and areas with smaller details start to become muddled. Radius value of 6.4 This radius value is too large. Images with larger textures and architectural images may be able to stand a slightly higher radius. You will find images with very fine textures and large flat areas, or images of people may need a smaller radius. The edges of the objects are difficult to see and not all of the detailed areas are visible.Ī radius of 4 is a good general starting point. Step 3: Select the radius value for the Hight Pass Filter. But the line will appear thin and embossed rather than thicker like an actual outline. The correct radius value will allow you to see the detail and edges of the subjects in your image. The radius value is somewhat subjective but something you will get a feel for with practice. The next step is to select the radius value for the High Pass filter. Step 2: Select High Pass from the filter menu. Make sure the top layer is highlighted and select the High Pass Filter. But now we are going to put it to good use in this sharpening process. It’s generally overlooked and if you’ve ever experimented with it you may have ended up with some strange results. The High Pass filter is an obscure filter buried under the “Other” sub-menu of the Filter menu. Step 1: Duplicate the image layer and make sure that the top layer is highlighted. If your image contains multiple layers you will need to flatten the image. To get started with high pass filter you need to open your image in Adobe Photoshop. Step 4: Change the Layer Blending Mode to “Overlay”.
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