raspicam | Go package for controlling Raspberry Pi Camera Module
kandi X-RAY | raspicam Summary
kandi X-RAY | raspicam Summary
Provides a simple Go interface to the Raspberry Pi Camera board. For the moment we call the existing command line tools, though eventually hope to hook directly into the C API. We aim to create an idiomatic Go API whilst mirroring the functionality of the existing command line tools to allow for the best interoperability.
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Top functions reviewed by kandi - BETA
- Capture executes a CaptureCommand and sends it to w .
- NewStill returns a new Still struct
- NewStillYUV returns a new StillYUV struct
- Create a new Vid
- Get the Camera
- paramString joins the parameters into a string .
raspicam Key Features
raspicam Examples and Code Snippets
Community Discussions
Trending Discussions on raspicam
QUESTION
I'm trying to run a script automatic when booting Raspberry with DietPi. My script starts a Python3 programm which then at the end starts an external program MP4Box which merges 2 video files to a mp4 in a folder in my lighttp webserver.
When I start the script manually everything works. But when the script starts automatically on boot, when it comes to the external program MP4Box, I get an error:
...ANSWER
Answered 2020-Dec-24 at 18:24Contrary to the description, the scripts in postboot.d are not excuted as root. So I changed my script to:
QUESTION
Setup: Raspberry PI 4b 4GB with Coral USB accelerator.
I am running this detection program which is from the official Coral USB website.
Running detection with mobilenet_ssd_v2_face_quant_postprocess_edgetpu.tflite works at 30FPS. And the LED on the Coral USB pulses, which means the Edge TPU is running.
...ANSWER
Answered 2020-Jun-19 at 16:48Sounds to me that you haven't pas your model through the edgetpu_compiler.
QUESTION
My program includes a subdirectory, because a header and a source file are there which are needed. My project looks like this:
EDIT: Perhaps I didn't specify: my goal is to link frame_cap.cpp to the header grab_cut.h, as I require its functions.
...ANSWER
Answered 2020-Jun-15 at 19:23The error:
QUESTION
I have a working solution to build a TypeScript Node app when deploying to docker via the Dockerfile.template file:
...ANSWER
Answered 2020-Mar-29 at 15:23You would typically compile your TypeScript to JavaScript outside the container, and then just copy the resulting JavaScript to the container, e.g.
QUESTION
I posted this on the Pi forum but the only answer I received is that I posted it in the wrong place.
I managed to create a program that will display some buttons and an Image. Now I would like to update the image when a button is clicked. How do I do that?
Here is what I have so far, it all works but missing code to update the displayed image. The 3 second delay before camrea.grab is missing from this code but has been add to the code that I am using.
...ANSWER
Answered 2020-Feb-18 at 23:06I did a lot of research and found the solution.
I updated my function like this
QUESTION
I've been trying out my Node.js app on a Raspberry Pi 3 Model B using Docker and it runs without any troubles.
The problem comes when an app dependency (raspicam) requires raspistill
to make use of the camera to take a photo. Raspberry is running Debian Stretch and the pi camera is configured and tested. But I cant access it when running the app via Docker.
Basically, I build the image with Docker Desktop on a win10 64bit machine using this Dockerfile:
...ANSWER
Answered 2019-Mar-05 at 22:13Try replace this from the Dockerfile:
QUESTION
#include
#include
#include
#include
#include
using namespace std;
using namespace cv;
using namespace raspicam;
Mat frame;
void Setup ( int argc,char **argv, RaspiCam_Cv &Camera )
{
Camera.set ( CAP_PROP_FRAME_WIDTH, ( "-w",argc,argv,400 ) );
Camera.set ( CAP_PROP_FRAME_HEIGHT, ( "-h",argc,argv,240 ) );
Camera.set ( CAP_PROP_BRIGHTNESS, ( "-br",argc,argv,50 ) );
Camera.set ( CAP_PROP_CONTRAST ,( "-co",argc,argv,50 ) );
Camera.set ( CAP_PROP_SATURATION, ( "-sa",argc,argv,50 ) );
Camera.set ( CAP_PROP_GAIN, ( "-g",argc,argv ,50 ) );
Camera.set ( CAP_PROP_FPS, ( "-fps",argc,argv,100));
}
int main(int argc,char **argv)
{
RaspiCam_Cv Camera;
Setup(argc, argv, Camera);
cout<<"Connecting to camera"<
...ANSWER
Answered 2019-Sep-28 at 14:09The error message exactly show what you should do. Rebuild OpenCV with GUI support!
QUESTION
I'm wondering if it would be at all possible to use a Raspberry Pi camera (attached to a Pi 3) to read the ambient brightness of the environment, as a light sensor.
I would want to poll the sensor once every 1-5 seconds such that I can adjust a variable based on the value of brightness seen. Something resembling...
...ANSWER
Answered 2019-Aug-24 at 04:43I just wrote a python program that captures an image to a jpg file every 60 seconds, then reads the EXIF Brightness Value from the jpg file (logs it and another program plots it.)
(Not Javascript, but the concept is the same.)
EXIF Brightness Values:
- exactly 0.0 for total darkness
- roughly 0.05 in a dark room with light streaming through the doorway from kitchen 30 feet away
- roughly 0.7 for a small room lit only by 150 watt overhead lighting
- roughly 1.0 for a small room with one large window at evening light plus overhead lighting
- roughly 1.5 for a small room with one large window during end of the world storm outside
- roughly 2.6 for a small room with one large window with partial blinds and full sun outside
Code is here: https://github.com/slowrunner/Carl/tree/master/Projects/LogLightValueAndPlot
QUESTION
I am receiving an error when running my program, I think specifically about color manipulation in the OpenCV library.
I'm trying to build a program that takes a video feed from a Raspberry Pi camera and analyze it. I want to find the brightest point in the video and calculate the distance and angle the point is at from the center of the video feed.
The project I am doing has the camera pointed at the center of a dark box, with a moving point of light.
I am using OpenCV 4.0.0 and C++ on a Raspberry Pi 3, as well as the raspicam library.
I am taking pointers from this guide, but I am using C++ and a video feed instead of Python and a static image.
...ANSWER
Answered 2019-Jun-07 at 05:41You want to do color manipulation but your image has the type CV_8U1. It has to be at least a three channel image like CV_8UC3 or CV_32F. Try a different CV_Type
QUESTION
I am trying to calibrate RaspiCam Fisheye lens camera with OpenCV. I am using Python example code and the cheesboard row and column numbers are also correct but somehow I can not get a successful result. I have tested with a lso much of photos below you can see them. My source code: https://github.com/jagracar/OpenCV-python-tests/blob/master/OpenCV-tutorials/cameraCalibration/cameraCalibration.py
my chess board rows and columns: rows = 9, cols = 6
but does not get a successful result
Edit: my solution
https://gist.github.com/mesutpiskin/0412c44bae399adf1f48007f22bdd22d
...ANSWER
Answered 2018-Jun-15 at 08:19First at all, as far as I can see your camera has fisheye optics, but it doesn't give all the surface of fisheye image (usually it is a circle inside black frame). The second. The code you are using is for usual camera or wide angle (90-110 degrees) It's not for fisheye (~ 180 degrees). Third. You can use source code URL link from HERE
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