2019-11-11 20:25:08 -0600 | received badge | ● Notable Question (source) |
2019-09-01 12:15:38 -0600 | received badge | ● Famous Question (source) |
2019-01-18 13:25:54 -0600 | received badge | ● Popular Question (source) |
2018-05-04 04:36:07 -0600 | received badge | ● Notable Question (source) |
2018-01-25 05:48:48 -0600 | received badge | ● Popular Question (source) |
2017-05-23 12:59:14 -0600 | asked a question | Need Code: Android OpenCV camera2 capture application Hello all. I need a simple reference to a code that opens the camera device using API android.hardware.camera2 , and pass the frame to a Mat object for OPENCV processing. All the code I manage to find use athe andorid.hardware.camera API, and I get low frame rates even when not doing any processing, just in preview mode. If anyone have an application with high speed frame rate camera output with Mat for openCV work, please share with me.. Thanks! |
2017-05-15 16:53:45 -0600 | answered a question | good capture card for HDMI capture with openCV anyone can help with this? |
2017-05-09 23:41:42 -0600 | asked a question | good capture card for HDMI capture with openCV Hi all. I need a recommendation on a good capture card for capturing HDMI stream that works 100% with OpenCV. the HDMI input is coming from a camera. I need a good model with minimum latency. from your experience, which one should I go for? |
2017-04-17 18:01:47 -0600 | received badge | ● Enthusiast |
2017-04-14 18:17:16 -0600 | commented question | getting openCV to read from an HDMI source Steven, Thanks for looking around for me, sucks that the HDMI input on the board is not supported.. So right now what should I consider as my best option? If I need to get a dongle or a capture card supported by openCV I would do that. The problem is I need somthing that can atleast in preview mode (as I dont need any actual recording) will allow me to see, say, my moving hand infront of the camera with practically no delay on my pc monitor. I cant have the surgeon see his camera movements with delay.. it's a big NO NO.. Is there anything out in the capture card market that can fit me? I'll take any idea you might have. P.S, my open cv code add litttle to no delay, its based on marking/drawing on live video. I dont use any heavy tracking ... (more) |
2017-04-13 12:52:13 -0600 | commented question | getting openCV to read from an HDMI source hi berak, camera is a Laparoscopic Surgery camera, I treat is as a black box with an HDMI output. I doubt It has an SDK. I just need to do some processing on openCV before i send the video to the TV monitor in the operating room. So openCV process letancy aside, i need the frames to arrive to the computer in real time. I also have a firefly RK-3288 reload development board running linux with an HDMI input .I can use it instead of a pc, , but I'm not sure how openCV can read from an HDMI input directly. |
2017-04-13 12:07:06 -0600 | asked a question | getting openCV to read from an HDMI source Hey, I need to make openCV use an hdmi source (a medical camera which connects to an HDMI input). my problem is, the camera out is HDMI, not usb, needless to say, it is not a webcam. what is the best way to get openCV to read the HDMI input? I have looked at video capture cards, but I dont really need to do any recording, I just need the video feed to go live in realtime. I dont need to save any of that data. any ideas? thanks. |
2017-04-04 06:00:25 -0600 | received badge | ● Editor (source) |
2017-04-04 06:00:07 -0600 | asked a question | OpenCV video window mouse cursor style Is it possible to change the crosshair style cursor when opening a video with openCV? (python) It's too small, I need a bigger one, with a different shape. Do I have to use a GUI for that? (using GUI like Tkinter slows down my FPS drastically when trying to resize for full screen) Would be happy if someone can lead me to a simple python code that lets me play a full screen video (or webcam..) with openCV, with a good sized mouse cursor, OR, tell me how to modify the highgui to give a different cursor |
2017-04-04 04:46:30 -0600 | commented question | Python + OpenCV + Tkinter playing video help Hi Eduardo, using |
2017-04-04 03:28:49 -0600 | asked a question | Python + OpenCV + Tkinter playing video help Hey, all. So here's my problem: I need a GUI to get a live webcam stream from openCV (or just open a video file), pass it to the Tkinter GUI window, and add some buttons and stuff to it. when I run the code and play the video, the video plays with proper FPS (same speed as just opening it with winows media player), however, the video window is small. It's very important that i get the video to full screen dimentions, perhaps a tad less so I can still see the GUI button. If i try to resize the video for full screen, by adding self.current_image= self.current_image.resize([2560,1440],PIL.Image.ANTIALIAS), my FPS drop and video is playing very slowly. going with self.root.attributes("-fullscreen",True) , the window just goes full screen but the video size itself is same. so that's no good either. How can I fill the screen with the video while keeping proper FPS? is it a code error or just slow processing? here is the code: thanks evryone (more) |