What is the use of radeon image sharpening?

Image sharpening is to compensate for the outline of the image, enhance the edges of the image and the grayscale jump parts, making the image clear and divided into spatial domains. processing and frequency domain processing.

Image sharpening is to highlight the edges, contours, or characteristics of certain linear target features on the image. This filtering method improves the contrast between the edge of the ground object and the surrounding pixels, so it is also called edge enhancement.

Image sharpening is one of the new features offered by AMD’s latest Navi GPUs, the Radeon RX 5700 and RX 5700 XT.

What is Radeon Image Sharpening?

This is a post-processing sharpening feature that AMD says results in virtually no performance penalty. Theoretically, you turn it on and the entire game's visuals improve in clarity. But as we observed with Geforce’s DLSS, manufacturer claims don’t always reflect reality.

Image sharpening has two key use cases: The first is "soft" gaming. Many games today use temporary anti-aliasing (TAA), which often results in blurry presentation. RADEON Image Sharpening (RIS) is a way to sharpen these games and get a clearer image.

The second use case is resolution downsampling. For example, if you have a 4K monitor but want better performance, you can run the game at 1800P or 80% resolution. This will inevitably make the image softer since it is not rendered at native resolution.

Radeon Image Sharpening can post-process images to add a bit of sharpness and bring them closer to native images with almost no performance penalty. In a sense, this is similar to Nvidia's attempt at DLSS, and the two will be compared later.

Radeon image sharpening technology is comparable to Nvidia's DLSS technology, and generally has considerable advantages.

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