opencv tag

104 questions

2 answers
101 views
0

Raspberry PI program makes 'undefined reference to symbol' clock_gettime@@GLIBC_2.4' error, etc.

While reading the January 2014 issue of Interface, Raspberry Pie x Camera for authentic image processing, I am trying to run the Raspberry PI camera module with OpenCV.I'm going to compile and run on ...

opencv raspberry-pi makefile

2 years ago

1 answers
80 views
0

To automatically display a full screen image on an external screen

I'm developing in C++ at Qt Creator.I want to project a projection mapping image with a connected projector right after Qt is created, but I don't know how to automate it. I want to separate the deskt...

opencv qt qt-creator

2 years ago

1 answers
177 views
0

cv2.error:OpenCV(4.5.2)error:(-215:Assertion failed)!_src.empty() in function 'cv::cvtColor'

This error occurred while implementing Mask-RCNN.I am sorry for the poor writing, but I look forward to hearing from you.error messages: cv2.error: OpenCV(4.5.2) error:(-215: Assertion failed)!_src.em...

python python3 opencv anaconda

2 years ago

1 answers
96 views
0

I would like to resolve the errors in the executable file in opencv and GPU without using cmake.

Here's the source code.#include<opencv2/opencv.hpp>// Include file specification// # include <opencv2/opencv_lib.hpp>// Specify Static Link Library# include <opencv2/gpu/gpu.hpp># pr...

c++ opencv cuda

2 years ago

2 answers
132 views
0

I want to send a webcam image from the server to the client.

Hello, I'm a student currently programming on Qt. Now, I'm going to use the server-side program and the client-side program to take a picture taken with the computer's webcam. I'm writing the code to ...

opencv qt

2 years ago

1 answers
86 views
0

Understanding OpenCV Clone

An Access Violation error occurs when creating programs using OpenCV and analog cameras.I'm multi-threaded and I'm converting the image I got from the camera on the first thread to cv::Mat. I'm trying...

c++ opencv multi-threaded

2 years ago

1 answers
93 views
0

The image file cannot be read and the shape cannot be retrieved.

In order to prepare learning data for image recognition in Python, I am writing a program that uses OpenCV to clip and save all images in each of the following folders into squares to fit the shorter ...

python python3 opencv

2 years ago

1 answers
66 views
0

Setting the Include Path when Compiling Programs on the Command Line on the VS2015

I'm trying to build a distributed program using VS2015 x64 Native Tools Command Prompt.cd buildqmakenmake releaseInstructions are written as follows:Apparently using OpenCV and Qt.As a precaution, it ...

windows opencv qt

2 years ago

1 answers
143 views
0

Displaying jp2 Images Using Python's OpenCV

Purpose and Current StateI want to display the jp2 image on OpenCV, but I get an error.It seems that you can read things like jpeg.I don't know the cause, so please let me know.environmentubuntu uses ...

python python3 opencv

2 years ago

1 answers
106 views
0

I would like to output the coordinates of the square after the outline is enclosed in a square with opencv c++.

Same as the URL program.It's made up to the point where the outline is surrounded by a rectangle!I want to get the coordinates from there, but it doesn't work very well.Thank you. https://docs.opencv....

c++ opencv

2 years ago

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