In contrast stretching, if r1≤r2and s1≤s2 then which of the following is true?(a) The transformation function is double valued and exponentially increasing(b) The transformation function is double valued and monotonically increasing(c) The transformation function is single valued and exponentially increasing(d) The transformation function is single valued and monotonically increasingThe question was posed to me in exam.The query is from Basic Intensity Transformation Functions in chapter Intensity Transformations and Spatial Filtering of Digital Image Processing

In contrast stretching, if r1≤r2and s1≤s2 then which of the follow

1.	In contrast stretching, if r1≤r2and s1≤s2 then which of the following is true?(a) The transformation function is double valued and exponentially increasing(b) The transformation function is double valued and monotonically increasing(c) The transformation function is single valued and exponentially increasing(d) The transformation function is single valued and monotonically increasingThe question was posed to me in exam.The query is from Basic Intensity Transformation Functions in chapter Intensity Transformations and Spatial Filtering of Digital Image Processing
Answer» The correct choice is (d) The TRANSFORMATION function is SINGLE valued and monotonically increasing The best I can explain: The locations of points (R1,s1) and (R2,s2) control the shape of the transformation function. If r1≤r2and s1≤s2 then the function is single valued and monotonically increasing.

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