What is the general form of representation of power transformation?(a) s=cr^γ(b) c=sr^γ(c) s=rc(d) s=rc^γThe question was asked during a job interview.This interesting question is from Basic Intensity Transformation Functions topic in division Intensity Transformations and Spatial Filtering of Digital Image Processing

What is the general form of representation of power transformation?(a)

1.	What is the general form of representation of power transformation?(a) s=cr^γ(b) c=sr^γ(c) s=rc(d) s=rc^γThe question was asked during a job interview.This interesting question is from Basic Intensity Transformation Functions topic in division Intensity Transformations and Spatial Filtering of Digital Image Processing
Answer» The correct OPTION is (a) s=cr^γ The BEST I can explain: Power-law transformations have the basic form: s=cr^γ where c and g are positive constants. SOMETIMES s=cr^γ is WRITTEN as s=c.(r+ε)^γ to account for an offset (that is, a measurable output when the input is zero).

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