Healing brush - A healing brush is an image-retouching tool that replaces unwanted local detail while adapting the replacement to the surrounding appearance.
Hierarchical hidden Markov model - A hierarchical hidden Markov model, or HHMM, is a probabilistic sequence model whose hidden states are organized into nested levels.
High-pass filter - A high-pass filter attenuates slowly varying components of a signal while retaining or emphasizing more rapidly varying components.
Histogram equalization - Histogram equalization remaps image intensities using their cumulative distribution to spread frequently occurring values across more of the available...
Histogram matching - Histogram matching remaps an image's intensity or color values so their distribution resembles a specified reference distribution.
Homography transformation - A homography transformation is a projective mapping between two planes, commonly represented by an invertible three-by-three matrix in homogeneous coordinates.
Homomorphic filtering - Homomorphic filtering is a signal-processing approach that transforms a combination of signal components into a form where filtering is easier.
Horn - Schunck - Horn - Schunck is a classical method for estimating dense optical flow, the apparent motion of image brightness patterns between frames.
Hough transform - The Hough transform detects parameterized shapes by letting image evidence vote for possible shape parameters.
Huffman encoding - Huffman encoding is a lossless compression method that assigns shorter codewords to more frequent symbols and longer codewords to less frequent symbols.
Hyperlapse - A hyperlapse is a time-compressed visual sequence in which the camera moves through space while the resulting view is kept reasonably smooth.
Hyperspectral image - A hyperspectral image records a spectrum across many narrow, typically contiguous wavelength bands at each spatial location.
I-frame - An I-frame is an intra-coded picture in a compressed video sequence: its picture content is encoded without relying on motion-compensated prediction from...
Ill-conditioning - Ill-conditioning means that small changes in a problem's inputs can cause comparatively large changes in its solution.
Image - In computer vision, an image is a spatially organized representation of visual or other measured information.
Image Analogies - Image Analogies is an example-based image-processing framework that uses a pair of images showing an input and its transformed appearance to guide a similar...
Image-based lighting - Image-based lighting uses an image representing environmental illumination to light a rendered scene.
Image-based rendering - Image-based rendering generates views of a scene using captured or previously rendered images as a central representation.
Image captioning - Image captioning is the task of generating a natural-language description of an image's visible content.
Image destriping - Image destriping is the process of reducing unwanted stripe-like artifacts in an image while preserving genuine scene information.
Image feature - An image feature is a measurable representation of visual information used to support a computer-vision task.
Image fusion - Image fusion combines information from multiple images into a joint representation or output intended to be more useful for a particular task.
Image gradient - An image gradient describes how image intensity changes with position.
Image indexing - Image indexing organizes information about images so they can be found and retrieved efficiently.
Image moment - An image moment is a numerical summary formed by adding pixel values or region weights after multiplying them by powers of their coordinates.
Image morphing - Image morphing creates a gradual visual transformation between images by combining changes in shape with changes in appearance.
Image mosaic - An image mosaic combines multiple images into a larger or more complete visual representation.
Image noise - Image noise is unwanted variation in recorded or processed image values that interferes with the information a task needs.
Image patch - An image patch is a small spatial region extracted from an image for local processing or representation.
Image plane - The image plane is the two-dimensional surface on which a camera model represents projected scene points.
Image processing - Image processing is the application of computational operations to image data to transform, improve, analyze or prepare it for another task.
Image quality - Image quality describes how well an image serves a defined viewing, reproduction or analysis purpose.
Image quilting - Image quilting is a patch-based method for synthesizing a larger texture from an example image.
Image recognition - Image recognition is the use of computational methods to identify visual categories, objects or patterns in an image.
Image rectification - Image rectification transforms images into a geometry that simplifies a particular task.
Image registration - Image registration estimates a spatial transformation that brings corresponding locations in two or more images into alignment.
Image retargeting - Image retargeting adapts an image to a new size, aspect ratio or presentation area while trying to preserve important content and visual meaning.
Image retrieval - Image retrieval is the task of finding images in a collection that are relevant to a query.
Image scaling - Image scaling changes an image's spatial dimensions by resampling it onto a new pixel grid.
Image segmentation - Image segmentation divides an image into meaningful regions or assigns labels to its pixels according to a defined task.
Image stabilization - Image stabilization reduces unwanted apparent motion caused by camera movement.
Image stitching - Image stitching combines overlapping images into a larger composite, such as a panorama or document mosaic.
Image-to-image network - An image-to-image network is a neural network that takes image data as input and produces an image or image-like spatial output.
Image warping - Image warping changes the spatial arrangement of image content according to a coordinate mapping.
Implicit curve - An implicit curve in the plane is described by a relation such as F(x,y)=0, rather than by explicitly expressing one coordinate as a function of the other.
Implicit surface - An implicit surface represents a three-dimensional boundary as the set of points satisfying an equation such as F(x,y,z)=0.
Impulse (delta) - An impulse, or delta, is an idealized localized input used in signal and image processing.
Integral image - An integral image, also called a summed-area table, stores cumulative sums of image values so that sums over axis-aligned rectangular regions can be...