A histogram is a visual representation of the distribution of quantitative data. To construct a histogram, the first step is to "bin" (or "bucket") the...
27 KB (3,340 words) - 22:23, 25 September 2024
photography, a color histogram is a representation of the distribution of colors in an image. For digital images, a color histogram represents the number...
17 KB (2,241 words) - 03:39, 10 November 2023
processing, histogram matching or histogram specification is the transformation of an image so that its histogram matches a specified histogram. The well-known...
6 KB (864 words) - 17:11, 7 February 2022
An image histogram is a type of histogram that acts as a graphical representation of the tonal distribution in a digital image. It plots the number of...
4 KB (485 words) - 01:58, 11 May 2024
Histogram equalization is a method in image processing of contrast adjustment using the image's histogram. This method usually increases the global contrast...
24 KB (2,271 words) - 14:45, 28 October 2024
Adaptive histogram equalization (AHE) is a computer image processing technique used to improve contrast in images. It differs from ordinary histogram equalization...
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Histograms are most commonly used as visual representations of data. However, Database systems use histograms to summarize data internally and provide...
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neurophysiology, peristimulus time histogram and poststimulus time histogram, both abbreviated PSTH or PST histogram, are histograms of the times at which neurons...
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The histogram of oriented gradients (HOG) is a feature descriptor used in computer vision and image processing for the purpose of object detection. The...
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Fractal flame (section Creating the histogram)
image. The algorithm consists of two steps: creating a histogram and then rendering the histogram. First, one iterates a set of functions, starting from...
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is equivalent to a globally optimal k-means performed on the intensity histogram. The extension to multi-level thresholding was described in the original...
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In robotics, Vector Field Histogram (VFH) is a real time motion planning algorithm proposed by Johann Borenstein and Yoram Koren in 1991. The VFH utilizes...
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A dose-volume histogram (DVH) is a histogram relating radiation dose to tissue volume in radiation therapy planning. DVHs are most commonly used as a plan...
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Oracle Database (redirect from Oracle histograms)
Oracle Database (commonly referred to as Oracle DBMS, Oracle Autonomous Database, or simply as Oracle) is a proprietary multi-model database management...
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Histogram of oriented displacements (HOD) is a 2D trajectory descriptor. The trajectory is described using a histogram of the directions between each two...
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Bucket sort (redirect from Histogram sort)
proximity mapping — of the keys. Another variant of bucket sort known as histogram sort or counting sort adds an initial pass that counts the number of elements...
13 KB (2,190 words) - 17:41, 26 August 2024
Scott's rule is a method to select the number of bins in a histogram. Scott's rule is widely employed in data analysis software including R, Python and...
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Sturges's rule is a method to choose the number of bins for a histogram. Given n {\displaystyle n} observations, Sturges's rule suggests using k ^ = 1...
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classification; it has further been determined that when LBP is combined with the Histogram of oriented gradients (HOG) descriptor, it improves the detection performance...
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Freedman–Diaconis rule can be used to select the width of the bins to be used in a histogram. It is named after David A. Freedman and Persi Diaconis. For a set of...
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often preferred. Histogram: Gerald Appel referred to bar graph plots of the basic MACD time series as "histogram". In Appel's Histogram the height of the...
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In image processing, the balanced histogram thresholding method (BHT), is a very simple method used for automatic image thresholding. Like Otsu's Method...
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Image segmentation (redirect from Histogram-based methods for image segmentation)
methods are used in industry including the maximum entropy method, balanced histogram thresholding, Otsu's method (maximum variance), and k-means clustering...
75 KB (9,658 words) - 21:34, 4 November 2024
both a histogram, and a normal probability plot. Normal probability plot of a sample from a uniform distribution – it has an S shape. Histogram of a sample...
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Alias method (redirect from Square histogram method)
of the probability table, proposed by Marsaglia et al. as the square histogram method, avoids the computation of y by instead checking the condition...
10 KB (1,085 words) - 00:21, 23 June 2024
Entropy estimation (section Histogram estimator)
given some observations. The simplest and most common approach uses histogram-based estimation, but other approaches have been developed and used, each...
10 KB (1,415 words) - 04:27, 5 November 2024
Frequency (statistics) (section Histograms)
the width of the interval. The total area of the histogram is equal to the number of data. A histogram may also be normalized displaying relative frequencies...
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Color normalization (section Histogram equalization)
rather than uniform. Histogram specification transforms the red, green and blue histograms to match the shapes of three specific histograms, rather than simply...
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Examples Cause-and-effect diagram Check sheet Control chart Histogram Pareto chart Scatter diagram Flow chart Run chart The seven basic tools of quality...
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Multicanonical ensemble (redirect from Flat-histogram)
multicanonical ensemble (also called multicanonical sampling or flat histogram) is a Markov chain Monte Carlo sampling technique that uses the Metropolis–Hastings...
17 KB (2,157 words) - 00:11, 15 June 2023