But by applying the High Pass Filter in Photoshop CC, you can selectively paint a sharpening effect onto your images. This means you can choose where to sharpen your image, likely your focal point.

A filter that blocks low frequencies and allows higher frequencies to pass through. Such filters are used in devices such as POTS splitters that direct phone and DSL signals to different lines.

Signals with frequency above or below the filter’s passband will be attenuated. The band-pass itself is constructed from a high pass and a low pass filter. [Ryan] used simple resistor capacitor ...

A qualified installer should be able to suggest the best option for you. High-pass filters Filters stop unwanted signals from radio amateurs and CB enthusiasts which can interfere with TV and ...