histogram computer

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• Histogram of oriented gradients — Histogram of Oriented Gradient descriptors, or HOG descriptors, are feature descriptors used in computer vision and image processing for the purpose of object detection. The technique counts occurrences of gradient orientation in localized… …   Wikipedia

• Histogram equalization — is a method in image processing of contrast adjustment using the image s histogram.OverviewThis method usually increases the local contrast of many images, especially when the usable data of the image is represented by close contrast values.… …   Wikipedia

• Color histogram — Not to be confused with Image histogram. In image processing and photography, a color histogram is a representation of the distribution of colors in an image. For digital images, a color histogram represents the number of pixels that have colors… …   Wikipedia

• Bag of words model in computer vision — This is an article introducing the Bag of words model (BoW) in computer vision, especially for object categorization. From now, the BoW model refers to the BoW model in computer vision unless explicitly declared.Before introducing the BoW model,… …   Wikipedia

• Adaptive histogram equalization — is a computer image processing technique used to improve contrast in images. It differs from ordinary histogram equalization in the respect that the adaptive method computes several histograms, each corresponding to a distinct section of the… …   Wikipedia

• List of computer vision topics — This is a list of computer vision and image processing topics Contents 1 Image enhancement 2 Transformations 3 Filtering, Fourier and wavelet transforms and image compression …   Wikipedia

• Visualization (computer graphics) — See also Visualization and Information graphics Visualization is any technique for creating images, diagrams, or animations to communicate a message. Visualization through visual imagery has been an effective way to communicate both abstract and… …   Wikipedia

• Object recognition (computer vision) — Feature detection Output of a typical corner detection algorithm …   Wikipedia

• Feature detection (computer vision) — In computer vision and image processing the concept of feature detection refers to methods that aim at computing abstractions of image information and making local decisions at every image point whether there is an image feature of a given type… …   Wikipedia

• Feature (computer vision) — In computer vision and image processing the concept of feature is used to denote a piece of information which is relevant for solving the computational task related to a certain application. More specifically, features can refer to* the result of …   Wikipedia

• Scale-invariant feature transform — Feature detection Output of a typical corner detection algorithm …   Wikipedia