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javacv
1–30 of 2015
Discussion group for the JavaCV project
https://github.com/bytedeco/
javacv
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bburd
,
Samuel Audet
4
Aug 2
Trying to display video from a Tello drone
Got an error message. Apparently, the Tello drone doesn't accept TCP connections. I've seen a
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Trying to display video from a Tello drone
Got an error message. Apparently, the Tello drone doesn't accept TCP connections. I've seen a
Aug 2
高睿君
,
Samuel Audet
8
11/7/24
cant run correctly
If this is the kind of camera that requires a special SDK, you'll need to create an appropriate
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cant run correctly
If this is the kind of camera that requires a special SDK, you'll need to create an appropriate
11/7/24
Greg Wilson
,
Samuel Audet
2
10/15/24
FFmpegFrameGrabber - Recording RTSP/RTP Stream and Packet Loss
To detect dropped frames, the camera needs to provide us with some timestamps. I guess the first
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FFmpegFrameGrabber - Recording RTSP/RTP Stream and Packet Loss
To detect dropped frames, the camera needs to provide us with some timestamps. I guess the first
10/15/24
Vikram Jain
,
Samuel Audet
4
9/18/24
how to resolve pixel jittering in javacv generated video
You need to check the encoder settings. Those don't appear in the encoded file. In the case of
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how to resolve pixel jittering in javacv generated video
You need to check the encoder settings. Those don't appear in the encoded file. In the case of
9/18/24
Ura Sigal
6/22/24
Extract PCR time
Hello group. What would be the best way to get PCR timestamp from ts packet using Ffmpeg wrappers.
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Extract PCR time
Hello group. What would be the best way to get PCR timestamp from ts packet using Ffmpeg wrappers.
6/22/24
Stavros Malakoudis
,
Samuel Audet
2
6/20/24
Android opencv import issues
As shown here, make sure to add a dependency only on opencv-platform, not on anything else: https://
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Android opencv import issues
As shown here, make sure to add a dependency only on opencv-platform, not on anything else: https://
6/20/24
施振彬
,
Samuel Audet
2
2/21/24
Low GPU Utilization When Transcoding Videos Using javacv ffmpeg
We can easily use the ffmpeg program from Java this way: https://bytedeco.org/javacpp-presets/ffmpeg/
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Low GPU Utilization When Transcoding Videos Using javacv ffmpeg
We can easily use the ffmpeg program from Java this way: https://bytedeco.org/javacpp-presets/ffmpeg/
2/21/24
Santhosh Kumar S
,
Samuel Audet
2
10/30/23
How to video input devcie list?
It's possible using FFmpeg: https://github.com/bytedeco/javacv/issues/189#issuecomment-1526419187
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How to video input devcie list?
It's possible using FFmpeg: https://github.com/bytedeco/javacv/issues/189#issuecomment-1526419187
10/30/23
Manohar Grandhi
,
Samuel Audet
4
10/3/23
i am using this dependency of jar in eclipse it is giving so many exceptions so i excluded even though it is giving so many
You can ignore those warning messages, they are not errors On 10/3/23 14:16, Manohar Grandhi wrote:
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i am using this dependency of jar in eclipse it is giving so many exceptions so i excluded even though it is giving so many
You can ignore those warning messages, they are not errors On 10/3/23 14:16, Manohar Grandhi wrote:
10/3/23
Jhuliano
,
Samuel Audet
6
8/18/23
Stop recording and save video output, without stopping the application
The program does not give any error, I believe that the recording is ended, but the file is not
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Stop recording and save video output, without stopping the application
The program does not give any error, I believe that the recording is ended, but the file is not
8/18/23
shira Jacobs
,
Samuel Audet
2
6/5/23
java.lang.NoClassDefFoundError: org/bytedeco/javacpp/Pointer
If you're looking for a working example, please use this one: https://github.com/bytedeco/gradle-
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java.lang.NoClassDefFoundError: org/bytedeco/javacpp/Pointer
If you're looking for a working example, please use this one: https://github.com/bytedeco/gradle-
6/5/23
shira Jacobs
,
Keith Hall
5
2/18/23
Mat of Byte to Array falling
Hey @Keith Hall Thank you!! very much appreciated!! בתאריך יום ד׳, 8 בפבר׳ 2023 ב-20:30 מאת Keith
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Mat of Byte to Array falling
Hey @Keith Hall Thank you!! very much appreciated!! בתאריך יום ד׳, 8 בפבר׳ 2023 ב-20:30 מאת Keith
2/18/23
shira Jacobs
2/1/23
Is there a possibility in JavaCV to compare images that are not the same size when one is shorter and the other is narrower #1977
Hi, I'm looking for an algorithm to normalize images to be able to compare them with QualitySSIM.
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Is there a possibility in JavaCV to compare images that are not the same size when one is shorter and the other is narrower #1977
Hi, I'm looking for an algorithm to normalize images to be able to compare them with QualitySSIM.
2/1/23
shira Jacobs
1/21/23
compare imaging not in the same size JavaCv
Hey all, Im using - = QualitySSIM.compute(base, screenShot, diff); but hen I sent image that have 1
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compare imaging not in the same size JavaCv
Hey all, Im using - = QualitySSIM.compute(base, screenShot, diff); but hen I sent image that have 1
1/21/23
Menegussi
,
Samuel Audet
5
12/8/22
Problem to build the javacv-camera-preview project
Hi! I will try it. Do you have any idea why the project runs on the emulator and not in the
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Problem to build the javacv-camera-preview project
Hi! I will try it. Do you have any idea why the project runs on the emulator and not in the
12/8/22
Aurelio Maica
,
Keith Hall
9
11/30/22
Crossing Line Detection
please help me create an event when crossing this line friend, sorry to ask so much. Thanks Em sáb.,
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Crossing Line Detection
please help me create an event when crossing this line friend, sorry to ask so much. Thanks Em sáb.,
11/30/22
shira Jacobs
, …
Keith Hall
12
11/24/22
color a grayScale MAT
This will hopefully give you a clue why you can't color a grayscale image A grayscale Mat 2000
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color a grayScale MAT
This will hopefully give you a clue why you can't color a grayscale image A grayscale Mat 2000
11/24/22
shira Jacobs
,
Samuel Audet
3
11/16/22
Add column for Mat Javacv
Thanks Samuel! That works correctlly! ב-יום שלישי, 15 בנובמבר 2022 בשעה 01:38:30 UTC+2, Samuel Audet
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Add column for Mat Javacv
Thanks Samuel! That works correctlly! ב-יום שלישי, 15 בנובמבר 2022 בשעה 01:38:30 UTC+2, Samuel Audet
11/16/22
Aurelio Maica
11/14/22
Detect a face when crossing 2 fixed points?
how do i detect a face when crossing 2 fixed points? Thanks in advance
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Detect a face when crossing 2 fixed points?
how do i detect a face when crossing 2 fixed points? Thanks in advance
11/14/22
Tamada
,
Samuel Audet
2
11/9/22
Can't import some packages in JavaCV
On 11/7/22 21:17, Tamada wrote: > my top-level build.gradle: Adding dependencies there won't
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Can't import some packages in JavaCV
On 11/7/22 21:17, Tamada wrote: > my top-level build.gradle: Adding dependencies there won't
11/9/22
shira Jacobs
, …
Keith Hall
5
11/9/22
Diff image in JavaCV
Wooow u my men that works great! ב-יום שלישי, 8 בנובמבר 2022 בשעה 17:27:12 UTC+2, the.kei...@gmail.
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Diff image in JavaCV
Wooow u my men that works great! ב-יום שלישי, 8 בנובמבר 2022 בשעה 17:27:12 UTC+2, the.kei...@gmail.
11/9/22
Samuel Audet
,
shira Jacobs
2
11/8/22
Re: [javacv] JavaCV errorin cvHoughCircles: error:(-5:Bad argument) Unknown array type in function 'cv::cvarrToMat'
How to convert the image? ב-יום רביעי, 15 באפריל 2020 בשעה 03:52:56 UTC+3, Samuel Audet כתב/ה: That
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Re: [javacv] JavaCV errorin cvHoughCircles: error:(-5:Bad argument) Unknown array type in function 'cv::cvarrToMat'
How to convert the image? ב-יום רביעי, 15 באפריל 2020 בשעה 03:52:56 UTC+3, Samuel Audet כתב/ה: That
11/8/22
shira Jacobs
, …
Keith Hall
8
10/31/22
Identify the difference between two images and highlight the difference
!!Thank you ב-יום ראשון, 30 באוקטובר 2022 בשעה 17:23:25 UTC+2, the.kei...@gmail.com כתב/ה: Looks like
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Identify the difference between two images and highlight the difference
!!Thank you ב-יום ראשון, 30 באוקטובר 2022 בשעה 17:23:25 UTC+2, the.kei...@gmail.com כתב/ה: Looks like
10/31/22
Aurelio Maica
,
Samuel Audet
2
10/26/22
CanvasFrame In jpanel
Not really, but you can easily draw images in your own components. On Thu, Oct 27, 2022, 03:55
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CanvasFrame In jpanel
Not really, but you can easily draw images in your own components. On Thu, Oct 27, 2022, 03:55
10/26/22
Aurelio Maica
,
Keith Hall
3
9/24/22
JavaCv + Yolo
If you're using a video file rather than a camera feed then modify this : import org.bytedeco.
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JavaCv + Yolo
If you're using a video file rather than a camera feed then modify this : import org.bytedeco.
9/24/22
崔鹏飞
,
Samuel Audet
4
6/6/22
javacv-paltform-1.5.7 cann't recognize the "rotate" of a video-inputStream while 1.5.6 can.
Indeed, the "rotate" metadata appears in the output of ffprobe with FFmpeg 4.4.x, but not
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javacv-paltform-1.5.7 cann't recognize the "rotate" of a video-inputStream while 1.5.6 can.
Indeed, the "rotate" metadata appears in the output of ffprobe with FFmpeg 4.4.x, but not
6/6/22
Larienas
,
Samuel Audet
3
2/27/22
Quarkus never load Tensor flow
Hi Samuel, I have set the "org.bytedeco.javacpp.logger.debug" system property to "true
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Quarkus never load Tensor flow
Hi Samuel, I have set the "org.bytedeco.javacpp.logger.debug" system property to "true
2/27/22
v.f.b...@gmail.com
, …
Samuel Audet
36
12/29/21
problem with ffmpeg on pi arm build
Well, we also need to make sure we're trying to capture in a resolution and pixel format
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problem with ffmpeg on pi arm build
Well, we also need to make sure we're trying to capture in a resolution and pixel format
12/29/21
Aurelio Maica
, …
Keith Hall
3
12/17/21
Anybody helpe me translate this code from python to javacv?
Here's a start. It doesn't do anything with the OCR and I haven't implemented the imutils
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Anybody helpe me translate this code from python to javacv?
Here's a start. It doesn't do anything with the OCR and I haven't implemented the imutils
12/17/21
Vid Vartak
,
Samuel Audet
4
11/1/21
Buffer underflow warnings when generating video?
Well, for example, one could assume that the recommendations from YouTube are probably in line with
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Buffer underflow warnings when generating video?
Well, for example, one could assume that the recommendations from YouTube are probably in line with
11/1/21