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Image scaling information


An image scaled with nearest-neighbor scaling (left) and 2×SaI scaling (right)

In computer graphics and digital imaging, image scaling refers to the resizing of a digital image. In video technology, the magnification of digital material is known as upscaling or resolution enhancement.

When scaling a vector graphic image, the graphic primitives that make up the image can be scaled using geometric transformations with no loss of image quality. When scaling a raster graphics image, a new image with a higher or lower number of pixels must be generated. In the case of decreasing the pixel number (scaling down), this usually results in a visible quality loss. From the standpoint of digital signal processing, the scaling of raster graphics is a two-dimensional example of sample-rate conversion, the conversion of a discrete signal from a sampling rate (in this case, the local sampling rate) to another.

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Image scaling

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When scaling a vector graphic image, the graphic primitives that make up the image can be scaled using geometric transformations with no loss of image quality...

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Comparison gallery of image scaling algorithms

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This gallery shows the results of numerous image scaling algorithms. An image size can be changed in several ways. Consider resizing a 160x160 pixel photo...

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Scaling

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Look up scaling in Wiktionary, the free dictionary. Scaling may refer to: Scaling (geometry), a linear transformation that enlarges or diminishes objects...

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Seam carving

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function to static images. Multi-operator: Combine with cropping and scaling. Much faster removal of multiple seams A 2010 review of eight image retargeting...

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Waifu2x

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waifu2x is an image scaling and noise reduction program for anime-style art and other types of photos. waifu2x was inspired by Super-Resolution Convolutional...

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Video scaler

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technologies generated new data based on provided video frames. Deinterlacing Image scaling Video § Display standards "Video Upscaling for better viewing experience"...

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Image resolution

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Multi-exposure HDR capture High-resolution picture transmission Image scaling Image scanner Kell factor, which typically limits the number of visible...

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2D computer graphics

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ellipses.) More general is scaling with a separate scale factor for each axis direction. Non-uniform scaling (anisotropic scaling, inhomogeneous dilation)...

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Feature scaling

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scaling is applied is that gradient descent converges much faster with feature scaling than without it. It's also important to apply feature scaling if...

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Image editing

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and ease of use. Image editors can resize images in a process often called image scaling, making them larger, or smaller. High image resolution cameras...

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Raster image processor

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lower resolution than the output device, which the RIP resizes using an image scaling algorithm. Originally a RIP was a rack of electronic hardware which...

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Color image pipeline

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include image sensor corrections (including debayering or applying a Bayer filter), noise reduction, image scaling, gamma correction, image enhancement...

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Computational photography

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are image scaling, dynamic range compression (i.e. tone mapping), color management, image completion (a.k.a. inpainting or hole filling), image compression...

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Dots per inch

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XP-style scaling) is removed and a per-app setting added for the user to disable DPI virtualization from the Compatibility tab. When the DPI scaling setting...

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Grayscale

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digital photography, computer-generated imagery, and colorimetry, a grayscale image is one in which the value of each pixel is a single sample representing...

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SVG

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Scalable Vector Graphics (SVG) is an XML-based vector image format for defining two-dimensional graphics, having support for interactivity and animation...

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Fiducial marker

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of markers in images may act as a reference for image scaling, or may allow the image and physical object, or multiple independent images, to be correlated...

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Display resolution

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some CRT-based displays may use digital video processing that involves image scaling using memory arrays, ultimately "display resolution" in CRT-type displays...

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Neural scaling law

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In machine learning, a neural scaling law is a scaling law relating parameters of a family of neural networks. In general, a neural model can be characterized...

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ImageNet

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images are not owned by ImageNet. Since 2010, the ImageNet project runs an annual software contest, the ImageNet Large Scale Visual Recognition Challenge...

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Autoscaling

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Autoscaling, also spelled auto scaling or auto-scaling, and sometimes also called automatic scaling, is a method used in cloud computing that dynamically...

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Scaling and root planing

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Scaling and root planing, also known as conventional periodontal therapy, non-surgical periodontal therapy or deep cleaning, is a procedure involving...

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Lossy compression

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resolution of an image, as in image scaling, particularly decimation. One may also remove less "lower information" parts of an image, such as by seam...

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Transcoding

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device, image scaling can be done on playback, but it can also be done by re-encoding, particularly as part of transrating (such as a downsampled image requiring...

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Directional Cubic Convolution Interpolation

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edge-directed image scaling algorithm created by Dengwen Zhou and Xiaoliu Shen. By taking into account the edges in an image, this scaling algorithm reduces...

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