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  2. Histogram matching - Wikipedia

    en.wikipedia.org/wiki/Histogram_matching

    This probability can easily be computed from the histogram of the image by p r ( r j ) = n j n {\textstyle p_{r}(r_{j})={n_{j} \over n}} Where n j is the frequency of the grayscale value r j , and n is the total number of pixels in the image.

  3. Scale analysis (statistics) - Wikipedia

    en.wikipedia.org/wiki/Scale_analysis_(statistics)

    The item-total correlation approach is a way of identifying a group of questions whose responses can be combined into a single measure or scale. This is a simple approach that works by ensuring that, when considered across a whole population, responses to the questions in the group tend to vary together and, in particular, that responses to no individual question are poorly related to an ...

  4. Scale parameter - Wikipedia

    en.wikipedia.org/wiki/Scale_parameter

    Animation showing the effects of a scale parameter on a probability distribution supported on the positive real line. Effect of a scale parameter over a mixture of two normal probability distributions. If the probability density exists for all values of the complete parameter set, then the density (as a function of the scale parameter only ...

  5. Scale analysis (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Scale_analysis_(mathematics)

    Scale analysis anticipates within a factor of order one when done properly, the expensive results produced by exact analyses. Scale analysis rules as follows: Rule1-First step in scale analysis is to define the domain of extent in which we apply scale analysis. Any scale analysis of a flow region that is not uniquely defined is not valid.

  6. Data analysis - Wikipedia

    en.wikipedia.org/wiki/Data_analysis

    Analysis refers to dividing a whole into its separate components for individual examination. [10] Data analysis is a process for obtaining raw data, and subsequently converting it into information useful for decision-making by users. [1] Data is collected and analyzed to answer questions, test hypotheses, or disprove theories. [11]

  7. Random sample consensus - Wikipedia

    en.wikipedia.org/wiki/Random_sample_consensus

    That probability to the power of k (the number of iterations in running the algorithm) is the probability that the algorithm never selects a set of n points which all are inliers, and this is the same as (the probability that the algorithm does not result in a successful model estimation) in extreme. Consequently,

  8. Shape parameter - Wikipedia

    en.wikipedia.org/wiki/Shape_parameter

    Such a parameter must affect the shape of a distribution rather than simply shifting it (as a location parameter does) or stretching/shrinking it (as a scale parameter does). For example, "peakedness" refers to how round the main peak is. [3] Probability density functions for selected distributions with mean 0 and variance 1.

  9. Scale (analytical tool) - Wikipedia

    en.wikipedia.org/wiki/Scale_(analytical_tool)

    [2] [3] This analytical tool is central to multi-scale analysis (see for example, MuSIASEM, land-use analysis). [4] For example, on at the scale of analysis of a given population of zebras, the number of predators (e.g. lions) determines the number of preys that survives after hunting, while at the scale of analysis of the ecosystem, the ...

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