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3 Fantastic Uses of the Photoshop High Pass Filter Phototuts+AdvertiseWrite for UsAbout TutorialsCompositionHardwareHDRInternetLightingPhotography FundamentalsPost-ProcessingShootingArticlesCompositionContestsHardwareHistoryInspirationInterviewsLecturesLightingNewsPhoto CritiquePhotography FundamentalsPost-ProcessingQuizzesReader ProfilesReviewsRound-upsShootingTheoryTipsCompositionShootingHardwareArticlesPost-ProcessingShootingPost-ProcessingSessionsResourcesVideosLecturesPost-ProcessingShootingLightingHardware Tuts+ PremiumTuts+ Hub The Latest Tuts+ UpdatesPsdtuts+ Adobe PhotoshopNettuts+ Web DevelopmentVectortuts+ Illustrator and VectorAudiotuts+ Audio and ProductionAetuts+ Adobe After EffectsCgtuts+ Computer GraphicsPhototuts+ PhotographyMobiletuts+ Mobile DevelopmentWebdesigntuts+ Web DesignWptuts+ WordPressMactuts+ Mac & OS XGamedevtuts+ Game DevelopmentCrafttuts+ Craft & Handmade Toggle Stock Photography Advertise Here Tutorials\Post-Processing 3 Fantastic Uses of the Photoshop High Pass Filter Andrew Gibson on Mar 4th 2010 with 14 commentsTutorial DetailsProgram: Photoshop CSDifficulty: IntermediateCompletion Time: 1 hour Tweet Pin It Final Product What You'll Be Creating Photoshop CS’s high pass filter is very versatile. There are three ways you can put it to use. One, it’s a great sharpening tool. Two, contradictory as it sounds, you can use it to soften portraits and other photos. Three, you can use it to create a high contrast portrait effect. In this tutorial, I’ll show you how to do all three.Step 1. SharpeningThis is the image that I want to sharpen. The reason that it needs sharpening it is that all digital photos have a natural softness caused by the anti-aliasing filter located in front of the camera’s sensor. The purpose of the anti-aliasing filter is to disperse the light that passes through it to avoid moire effects seen in clothing and other textiles. But it also softens the image, which is why you normally need to sharpen your photos.Sharpening is always the last step in post-processing. This is because the amount of sharpening you need to apply varies according to how you intend to use the photo. A photo that’s going to appear on the internet, for example, requires a different amount of sharpening to a photo that’s going to be printed on an inkjet printer.