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2. Unsharp masking - Wikipedia

   en.wikipedia.org/wiki/Unsharp_masking

   If the difference is greater than a user-specified threshold setting, the images are (in effect) subtracted. Digital unsharp masking is a flexible and powerful way to increase sharpness, especially in scanned images. Unfortunately, it may create unwanted conspicuous edge effects or increase image noise.

3. Acutance - Wikipedia

   en.wikipedia.org/wiki/Acutance

   In digital photography, onboard camera software and image postprocessing tools such as Photoshop or GIMP offer various sharpening facilities, the most widely used of which is known as "unsharp mask" because the algorithm is derived from the eponymous analog processing method. In the example image, two light gray lines were drawn on a gray ...

4. Artweaver - Wikipedia

   en.wikipedia.org/wiki/Artweaver

   Like the latter, Artweaver is capable of simulating a wide range of classical effects (such as oil paints, acrylics, pastels, pencils, airbrushes, etc.) to create natural-looking artistic images. [4] It also offers effect filters like sharpen, blur, emboss, and mosaic, as well as transparency and layer support in its own AWD format.

5. Kernel (image processing) - Wikipedia

   en.wikipedia.org/wiki/Kernel_(image_processing)

   In image processing, a kernel, convolution matrix, or mask is a small matrix used for blurring, sharpening, embossing, edge detection, and more. This is accomplished by doing a convolution between the kernel and an image. Or more simply, when each pixel in the output image is a function of the nearby pixels (including itself) in the input image ...

6. Bokeh - Wikipedia

   en.wikipedia.org/wiki/Bokeh

   The term comes from the Japanese word boke (暈け/ボケ), which means "blur" or "haze", resulting in boke-aji (ボケ味), the "blur quality".This is derived as a noun form of the verb bokeru, which is written in several ways, [7] with additional meanings and nuances: 暈ける refers to being blurry, hazy or out-of-focus, whereas the 惚ける and 呆ける spellings refer to being mentally ...

7. Deep learning super sampling - Wikipedia

   en.wikipedia.org/wiki/Deep_learning_super_sampling

   Deep learning super sampling (DLSS) is a family of real-time deep learning image enhancement and upscaling technologies developed by Nvidia that are available in a number of video games.