13 #ifndef IMAGE_BIAS_HPP
14 #define IMAGE_BIAS_HPP
28 virtual double get(
int i,
int j,
int k)
const
30 return L->
get(i, j, k) + value;
33 virtual void tweak(
int a,
int v)
35 if (a == 0) value += 0.1 * v;
38 virtual void doc(std::ostream& out)
const
40 out <<
"bias " << value;
virtual double get(int i, int j, int k) const =0
Return the value of the sample at row i, column j, channel k.
image * L
Left child.
Definition: image.hpp:117
Bias filter.
Definition: image_bias.hpp:20
virtual void tweak(int a, int v)
Tweak image parameter a, changing the value by a factor of v.
Definition: image_bias.hpp:33
Base class for all image sources, filters, and operators.
Definition: image.hpp:20
virtual void doc(std::ostream &out) const
Produce a string documenting the function of this object.
Definition: image_bias.hpp:38
bias(double value, image *L)
Add value to all samples of image L. This alters the brightness of L.
Definition: image_bias.hpp:26