GammaFilter

All Implemented Interfaces:

com.otaliastudios.cameraview.filter.Filter , com.otaliastudios.cameraview.filter.OneParameterFilter
```
public class GammaFilter
extends BaseFilter implements OneParameterFilter
                    
```
Applies gamma correction to the frames.

Field Summary

Fields
Modifier and Type	Field	Description
`private float`	`gamma`

Constructor Summary

Constructors
Constructor	Description
`GammaFilter()`

Method Summary

Modifier and Type	Method	Description
`float`	`getGamma()`	Returns the current gamma.
`void`	`setGamma(float gamma)`	Sets the new gamma value in the 0.0 - 2.0 range.The 1.0 value means no correction will be applied.
`void`	`setParameter1(float value)`	Sets the parameter.The value should always be between 0 and 1.
`float`	`getParameter1()`	Returns the parameter.The returned value should always be between 0 and 1.
`String`	`getFragmentShader()`	Returns a String containing the fragment shader.
`void`	`onCreate(int programHandle)`	The filter program was just created.
`void`	`onDestroy()`	The filter program is about to be destroyed.

Methods inherited from class com.otaliastudios.cameraview.filter.BaseFilter
copy, draw, getVertexShader, setSize
Methods inherited from class com.otaliastudios.cameraview.filter.Filter
copy
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - GammaFilter
```
GammaFilter()
```
- Method Detail
  - getGamma
```
 float getGamma()
```
    Returns the current gamma.
  - setGamma
```
 void setGamma(float gamma)
```
    Sets the new gamma value in the 0.0 - 2.0 range.The 1.0 value means no correction will be applied.
    
    Parameters:
    
    gamma - gamma value
  - setParameter1
```
 void setParameter1(float value)
```
    Sets the parameter.The value should always be between 0 and 1.
    
    Parameters:
    
    value - parameter
  - getParameter1
```
 float getParameter1()
```
    Returns the parameter.The returned value should always be between 0 and 1.
  - getFragmentShader
```
@NonNull() String getFragmentShader()
```
    Returns a String containing the fragment shader.Together with getVertexShader, this will be used tocreate the OpenGL program.
  - onCreate
```
 void onCreate(int programHandle)
```
    The filter program was just created. We pass in a handle to the OpenGLprogram that was created, so you can fetch pointers.
    
    Parameters:
    
    programHandle - handle
  - onDestroy
```
 void onDestroy()
```
    The filter program is about to be destroyed.