Example Android Gradient - Revision history

Peter at 22:23, 15 July 2023

2023-07-15T22:23:48Z

← Older revision		Revision as of 22:23, 15 July 2023
Line 4:		Line 4:
	</gallery>		</gallery>
	</center>		</center>


			<center><SPAN STYLE="font-size: 20pt">New projects should use [[Example_Android_Fragment_Gradient \| Fragments]]</SPAN></center>
			<br>

	Demonstration of how to capture and process a video stream in real-time using BoofCV on an Android device. On Android devices, video streams are accessed inside a camera preview, which require several hoops to be jumped through. What this example does is capture the image in NV21 format, convert it into an GrayU8, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.		Demonstration of how to capture and process a video stream in real-time using BoofCV on an Android device. On Android devices, video streams are accessed inside a camera preview, which require several hoops to be jumped through. What this example does is capture the image in NV21 format, convert it into an GrayU8, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.

Peter at 05:35, 13 November 2018

2018-11-13T05:35:50Z

Show changes

Peter: Peter moved page Example Android Video to Example Android Gradient

2018-11-13T05:34:44Z

Peter moved page Example Android Video to Example Android Gradient

← Older revision	Revision as of 05:34, 13 November 2018
(No difference)

Peter at 00:55, 18 December 2017

2017-12-18T00:55:54Z

← Older revision		Revision as of 00:55, 18 December 2017
Line 7:		Line 7:
	Demonstration of how to capture and process a video stream in real-time using BoofCV on an Android device. On Android devices, video streams are accessed inside a camera preview, which require several hoops to be jumped through. What this example does is capture the image in NV21 format, convert it into an GrayU8, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.		Demonstration of how to capture and process a video stream in real-time using BoofCV on an Android device. On Android devices, video streams are accessed inside a camera preview, which require several hoops to be jumped through. What this example does is capture the image in NV21 format, convert it into an GrayU8, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.

	Example File: [https://github.com/lessthanoptimal/BoofCV/blob/v0.27/integration/android/examples/video/src/org/boofcv/~~example/android~~/VideoActivity.java VideoActivity.java]		Example File: [https://github.com/lessthanoptimal/BoofCV/blob/v0.27/integration/boofcv-android/examples/video/app/src/main/java/org/boofcv/video/VideoActivity.java VideoActivity.java]

	Complete Project: [https://github.com/lessthanoptimal/BoofCV/~~blob~~/v0.27/integration/android/examples/video Android Project]		Complete Project: [https://github.com/lessthanoptimal/BoofCV/tree/v0.27/integration/boofcv-android/examples/video Android Project]

	Concepts:		Concepts:

Peter at 00:52, 18 December 2017

2017-12-18T00:52:09Z

← Older revision		Revision as of 00:52, 18 December 2017
Line 7:		Line 7:
	Demonstration of how to capture and process a video stream in real-time using BoofCV on an Android device. On Android devices, video streams are accessed inside a camera preview, which require several hoops to be jumped through. What this example does is capture the image in NV21 format, convert it into an GrayU8, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.		Demonstration of how to capture and process a video stream in real-time using BoofCV on an Android device. On Android devices, video streams are accessed inside a camera preview, which require several hoops to be jumped through. What this example does is capture the image in NV21 format, convert it into an GrayU8, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.

	Example File: [https://github.com/lessthanoptimal/BoofCV/blob/v0.23/integration/android/examples/video/src/org/boofcv/example/android/VideoActivity.java VideoActivity.java]		Example File: [https://github.com/lessthanoptimal/BoofCV/blob/v0.27/integration/android/examples/video/src/org/boofcv/example/android/VideoActivity.java VideoActivity.java]

	Complete Project: [https://github.com/lessthanoptimal/BoofCV/blob/v0.23/integration/android/examples/video Android Project]		Complete Project: [https://github.com/lessthanoptimal/BoofCV/blob/v0.27/integration/android/examples/video Android Project]

	Concepts:		Concepts:

Peter at 15:17, 29 March 2016

2016-03-29T15:17:03Z

← Older revision		Revision as of 15:17, 29 March 2016
Line 5:		Line 5:
	</center>		</center>

	Demonstration of how to capture and process a video stream in real-time using BoofCV on an Android device. On Android devices, video streams are accessed inside a camera preview, which require several hoops to be jumped through. What this example does is capture the image in NV21 format, convert it into an ~~ImageUInt8~~, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.		Demonstration of how to capture and process a video stream in real-time using BoofCV on an Android device. On Android devices, video streams are accessed inside a camera preview, which require several hoops to be jumped through. What this example does is capture the image in NV21 format, convert it into an GrayU8, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.

	Example File: [https://github.com/lessthanoptimal/BoofCV/blob/v0.23/integration/android/examples/video/src/org/boofcv/example/android/VideoActivity.java VideoActivity.java]		Example File: [https://github.com/lessthanoptimal/BoofCV/blob/v0.23/integration/android/examples/video/src/org/boofcv/example/android/VideoActivity.java VideoActivity.java]

Peter at 12:51, 28 March 2016

2016-03-28T12:51:50Z

Show changes

Peter at 19:03, 26 December 2013

2013-12-26T19:03:31Z

← Older revision		Revision as of 19:03, 26 December 2013
Line 7:		Line 7:
	Demonstration of how to capture and process a video stream in real-time using BoofCV on an Android device. On Android devices, video streams are accessed inside a camera preview, which require several hoops to be jumped through. What this example does is capture the image in NV21 format, convert it into an ImageUInt8, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.		Demonstration of how to capture and process a video stream in real-time using BoofCV on an Android device. On Android devices, video streams are accessed inside a camera preview, which require several hoops to be jumped through. What this example does is capture the image in NV21 format, convert it into an ImageUInt8, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.

	Example File: [https://github.com/lessthanoptimal/BoofCV/blob/v0.16/integration/android/examples/video/src/org/boofcv/example/~~androidVideoActivity~~.java VideoActivity.java]		Example File: [https://github.com/lessthanoptimal/BoofCV/blob/v0.16/integration/android/examples/video/src/org/boofcv/example/android/VideoActivity.java VideoActivity.java]

	Complete Project: [https://github.com/lessthanoptimal/BoofCV/blob/v0.16/integration/android/examples/video Android Project]		Complete Project: [https://github.com/lessthanoptimal/BoofCV/blob/v0.16/integration/android/examples/video Android Project]

Peter: Updated for v0.16

2013-12-26T19:00:25Z

Updated for v0.16

← Older revision		Revision as of 19:00, 26 December 2013
Line 7:		Line 7:
	Demonstration of how to capture and process a video stream in real-time using BoofCV on an Android device. On Android devices, video streams are accessed inside a camera preview, which require several hoops to be jumped through. What this example does is capture the image in NV21 format, convert it into an ImageUInt8, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.		Demonstration of how to capture and process a video stream in real-time using BoofCV on an Android device. On Android devices, video streams are accessed inside a camera preview, which require several hoops to be jumped through. What this example does is capture the image in NV21 format, convert it into an ImageUInt8, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.

	Example File: [https://github.com/lessthanoptimal/BoofCV/blob/v0.13/integration/android/examples/video/src/org/boofcv/example/androidVideoActivity.java VideoActivity.java]		Example File: [https://github.com/lessthanoptimal/BoofCV/blob/v0.16/integration/android/examples/video/src/org/boofcv/example/androidVideoActivity.java VideoActivity.java]

	Complete Project: [https://github.com/lessthanoptimal/BoofCV/blob/v0.13/integration/android/examples/video Android Project]		Complete Project: [https://github.com/lessthanoptimal/BoofCV/blob/v0.16/integration/android/examples/video Android Project]

	Concepts:		Concepts:
Line 82:		Line 82:
	protected void onResume() {		protected void onResume() {
	super.onResume();		super.onResume();

	~~if( mCamera != null )~~
	~~throw new RuntimeException("Bug, camera should not be initialized already");~~

	setUpAndConfigureCamera();		setUpAndConfigureCamera();
	}		}
Line 134:		Line 130:
	thread.start();		thread.start();

	// ~~Create an instance of Camera~~		// Start the video feed by passing it to mPreview
	mPreview.setCamera(mCamera);		mPreview.setCamera(mCamera);
	}		}

Peter at 00:28, 17 February 2013

2013-02-17T00:28:41Z

← Older revision		Revision as of 00:28, 17 February 2013
Line 1:		Line 1:
	<center>		<center>
	<gallery heights=~~250~~ widths=~~733~~ >		<gallery heights=300 widths=550 >
	Image:~~Example_video_mosaic~~.jpg\| ~~Mosaic created from a view outside~~ an ~~airplane window~~.		Image:Example_android_video.jpg\| Colorized image gradient being displayed on an Android phone.
	</gallery>		</gallery>
	</center>		</center>

	Demonstration of to capture and process a video stream in real-time using BoofCV on an Android device. On Android video streams are accessed inside a camera preview, which require several hoops to be jumped through ~~for it to work well~~. What this example does is capture the image in NV21 format, convert it into an ImageUInt8, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.		Demonstration of how to capture and process a video stream in real-time using BoofCV on an Android device. On Android devices, video streams are accessed inside a camera preview, which require several hoops to be jumped through. What this example does is capture the image in NV21 format, convert it into an ImageUInt8, compute the image gradient, visualize the gradient in a Bitmap image, and display the results. Note that the example below is not entirely self contained, see the complete project for additional files.

	Example File: [https://github.com/lessthanoptimal/BoofCV/blob/v0.13/integration/android/examples/video/src/org/boofcv/example/androidVideoActivity.java VideoActivity.java]		Example File: [https://github.com/lessthanoptimal/BoofCV/blob/v0.13/integration/android/examples/video/src/org/boofcv/example/androidVideoActivity.java VideoActivity.java]