boofcv.android.camera

Class VideoImageProcessing<T extends boofcv.struct.image.ImageBase<T>>

java.lang.Object

java.lang.Thread

boofcv.android.camera.VideoRenderProcessing<T>

boofcv.android.camera.VideoImageProcessing<T>

All Implemented Interfaces:

VideoProcessing, java.lang.Runnable

public abstract class VideoImageProcessing<T extends boofcv.struct.image.ImageBase<T>>
extends VideoRenderProcessing<T>

Visualizes a process where the output is simply a rendered Bitmap image. Provides an input image in a BoofCV image and a Bitmap to render the output to.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class boofcv.android.camera.VideoRenderProcessing

lockConvert, lockGui, outputHeight, outputWidth, scale, tranX, tranY, view

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	VideoImageProcessing(boofcv.struct.image.ImageType<T> imageType) Constructor

Method Summary

Modifier and Type	Method and Description
protected void	declareImages(int width, int height)
protected void	process(T gray) Image processing is done here and is invoked in its own thread, removing any hard time constraints.
protected abstract void	process(T image, android.graphics.Bitmap output, byte[] storage) Process video stream and computes output Bitmap for display.
protected void	render(android.graphics.Canvas canvas, double imageToOutput) Results computed by VideoRenderProcessing.process(T) are visualized here.

Methods inherited from class boofcv.android.camera.VideoRenderProcessing

convertPreview, getScale, getTranX, getTranY, imageToOutput, init, onDraw, outputToImage, run, stopProcessing

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

VideoImageProcessing

protected VideoImageProcessing(boofcv.struct.image.ImageType<T> imageType)

Constructor

Parameters:

imageType - Type of image the video stream is to be converted to

Method Detail

declareImages

protected void declareImages(int width,
                             int height)

Overrides:

declareImages in class VideoRenderProcessing<T extends boofcv.struct.image.ImageBase<T>>

process

protected void process(T gray)

Description copied from class: VideoRenderProcessing

Image processing is done here and is invoked in its own thread, removing any hard time constraints. When modifying data structures that are read inside of VideoRenderProcessing.render(android.graphics.Canvas, double) be sure to use synchronize with VideoRenderProcessing.lockGui to avoid crashes or weird visual artifacts. Use of lockGui should be minimized to ensure a fast and responsive GUI

Specified by:

process in class VideoRenderProcessing<T extends boofcv.struct.image.ImageBase<T>>

render

protected void render(android.graphics.Canvas canvas,
                      double imageToOutput)

Description copied from class: VideoRenderProcessing

Results computed by VideoRenderProcessing.process(T) are visualized here. This function is called inside a synchronize(lockGui) block. The provided canvas has been adjusted to be centered in the view and to account for the resolution difference of the preview image and the display.

Specified by:

render in class VideoRenderProcessing<T extends boofcv.struct.image.ImageBase<T>>

Parameters:

canvas - Canvas which is to be displayed.

imageToOutput - Scale factor from input image to output display. Can also be accessed via VideoRenderProcessing.getScale()

process

protected abstract void process(T image,
                                android.graphics.Bitmap output,
                                byte[] storage)

Process video stream and computes output Bitmap for display.

Parameters:

image - (Input) Video stream translated into a BoofCV type image.

output - (Output) Storage for Bitmap image which is to be displayed.

storage - Array which can be used when converting the boofcv image into a Bitmap.