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Image Analogy
{{context, date=May 2013 An image analogy is a method of creating an image filter automatically from training data. In an image analogy process, the transformation between two images A and A' is "learned". Later, given a different image B, its "analogy" image B' can be generated based on the learned transformation. The image analogy method has been used to simulate many types of image filters: * Toy filters, such as blurring or "embossing." * Texture synthesis from an example texture. * Super-resolution, inferring a high-resolution image from a low-resolution source. * Texture transfer, in which images are "texturized" with some arbitrary source texture. * Artistic filters, in which various drawing and painting styles, including oil, pastel, and pen-and-ink rendering, are synthesized based on scanned real-world examples. * Texture-by-numbers, in which realistic scenes, composed of a variety of textures, are created using a simple "painting" interface. * Image colorization, where col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Texture Synthesis
Texture synthesis is the process of algorithmically constructing a large digital image from a small digital sample image by taking advantage of its structural content. It is an object of research in computer graphics and is used in many fields, amongst others digital image editing, 3D computer graphics and Film#Production, post-production of films. Texture synthesis can be used to fill in holes in images (as in inpainting), create large non-repetitive background images and expand small pictures. Contrast with procedural textures Procedural textures are a related technique which may synthesise textures from scratch with no source material. By contrast, texture synthesis refers to techniques where some source image is being matched or extended. Textures "Texture (computer graphics), Texture" is an ambiguous word and in the context of texture synthesis may have one of the following meanings: # In common speech, the word "texture" is used as a synonym for "surface structure". Texture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grayscale
In digital photography, computer-generated imagery, and colorimetry, a grayscale image is one in which the value of each pixel is a single sample representing only an ''amount'' of light; that is, it carries only intensity information. Grayscale images, a kind of black-and-white or gray monochrome, are composed exclusively of shades of gray. The contrast ranges from black at the weakest intensity to white at the strongest. Grayscale images are distinct from one-bit bi-tonal black-and-white images, which, in the context of computer imaging, are images with only two colors: black and white (also called ''bilevel'' or '' binary images''). Grayscale images have many shades of gray in between. Grayscale images can be the result of measuring the intensity of light at each pixel according to a particular weighted combination of frequencies (or wavelengths), and in such cases they are monochromatic proper when only a single frequency (in practice, a narrow band of frequencies) is ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
