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imported>Mathias |
imported>Benjamin |
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| ===Purpose===
| | Working with False-color images, figure 6. |
| Outputs a sigmoid function.
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| ===Synopsis===
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| :[y,y1,y2] = peaksigmoid(x,p)
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| ===Inputs===
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| * '''x''' = 3 element vector where
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| :* x(1) = coefficient
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| :* x(2) = offset
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| :* x(3) = decay constant
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| * '''p''' = axis 1xN (independent variable)
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| ===Outputs===
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| * '''y(1) ''' = <math> {{x}_{1}} \left( \frac{1-{{\operatorname{e}}^{-z}}}{{ 1 }+{{\operatorname{e}}^{-z}}} \right)</math> where z = <math> {x}_{3}\left(p -{x}_{2} \right)</math>, 1xN
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| * '''y(2) ''' = <math>{\operatorname{d}\!y\over\operatorname{d}\!{x}_{i}}</math> , 3xN
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| * ''' y(3) ''' = <math>{\operatorname{d^2}\!y\over\operatorname{d}\!{{x}_{i}}^{2}}</math> , 3x3xN
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Revision as of 14:21, 12 May 2017
Working with False-color images, figure 6.