jp.co.cyberagent.android.gpuimage.filter

Class GPUImageDilationFilter

java.lang.Object

jp.co.cyberagent.android.gpuimage.filter.GPUImageFilter

jp.co.cyberagent.android.gpuimage.filter.GPUImageFilterGroup

jp.co.cyberagent.android.gpuimage.filter.GPUImageTwoPassFilter

jp.co.cyberagent.android.gpuimage.filter.GPUImageTwoPassTextureSamplingFilter

jp.co.cyberagent.android.gpuimage.filter.GPUImageDilationFilter

public class GPUImageDilationFilter
extends GPUImageTwoPassTextureSamplingFilter

For each pixel, this sets it to the maximum value of the red channel in a rectangular neighborhood extending out dilationRadius pixels from the center. This extends out bright features, and is most commonly used with black-and-white thresholded images.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	FRAGMENT_SHADER_1
static java.lang.String	FRAGMENT_SHADER_2
static java.lang.String	FRAGMENT_SHADER_3
static java.lang.String	FRAGMENT_SHADER_4
static java.lang.String	VERTEX_SHADER_1
static java.lang.String	VERTEX_SHADER_2
static java.lang.String	VERTEX_SHADER_3
static java.lang.String	VERTEX_SHADER_4

Fields inherited from class jp.co.cyberagent.android.gpuimage.filter.GPUImageFilter

NO_FILTER_FRAGMENT_SHADER, NO_FILTER_VERTEX_SHADER

Constructor Summary

Constructors

Constructor and Description
GPUImageDilationFilter()
GPUImageDilationFilter(int radius) Acceptable values for dilationRadius, which sets the distance in pixels to sample out from the center, are 1, 2, 3, and 4.

Method Summary

Methods inherited from class jp.co.cyberagent.android.gpuimage.filter.GPUImageTwoPassTextureSamplingFilter

getHorizontalTexelOffsetRatio, getVerticalTexelOffsetRatio, initTexelOffsets, onInit, onOutputSizeChanged

Methods inherited from class jp.co.cyberagent.android.gpuimage.filter.GPUImageFilterGroup

addFilter, getFilters, getMergedFilters, onDestroy, onDraw, updateMergedFilters

Methods inherited from class jp.co.cyberagent.android.gpuimage.filter.GPUImageFilter

convertStreamToString, destroy, getAttribPosition, getAttribTextureCoordinate, getOutputHeight, getOutputWidth, getProgram, getUniformTexture, ifNeedInit, isInitialized, loadShader, onDrawArraysPre, onInitialized, runOnDraw, runPendingOnDrawTasks, setFloat, setFloatArray, setFloatVec2, setFloatVec3, setFloatVec4, setInteger, setPoint, setUniformMatrix3f, setUniformMatrix4f

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

VERTEX_SHADER_1

public static final java.lang.String VERTEX_SHADER_1

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Constant Field Values

VERTEX_SHADER_2

public static final java.lang.String VERTEX_SHADER_2

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Constant Field Values

VERTEX_SHADER_3

public static final java.lang.String VERTEX_SHADER_3

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Constant Field Values

VERTEX_SHADER_4

public static final java.lang.String VERTEX_SHADER_4

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Constant Field Values

FRAGMENT_SHADER_1

public static final java.lang.String FRAGMENT_SHADER_1

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Constant Field Values

FRAGMENT_SHADER_2

public static final java.lang.String FRAGMENT_SHADER_2

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Constant Field Values

FRAGMENT_SHADER_3

public static final java.lang.String FRAGMENT_SHADER_3

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Constant Field Values

FRAGMENT_SHADER_4

public static final java.lang.String FRAGMENT_SHADER_4

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Constant Field Values

Constructor Detail

GPUImageDilationFilter

public GPUImageDilationFilter()

GPUImageDilationFilter

public GPUImageDilationFilter(int radius)

Acceptable values for dilationRadius, which sets the distance in pixels to sample out from the center, are 1, 2, 3, and 4.

Parameters:

radius - 1, 2, 3 or 4