Improve Real-Time GPU-Based Image Blur Algorithms: Gaussian Blur
Image blur filters are commonly used in computer graphics – whether it is an integral part of a Depth of Field or HDR Bloom, or another post process effect, blur filters are present in most 3D game engines and often in multiple places. Blurring an image is a fairly trivial thing to do: just collect neighboring pixels, average them and you get your new value, right? This video looks at Gaussian using a “Gaussian blur filter”, which is widely used filter and that reduces image detail and noise (for example, to simulate lens out of focus blurring). It is called Gaussian because the image is blurred using a Gaussian curve.
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