An error occurred using opencv SLIC c++

ramge132 · October 28, 2021, 12:29pm

the original source:

opencv/opencv_contrib/blob/master/modules/ximgproc/samples/slic.cpp

#include <opencv2/imgproc.hpp>
#include <opencv2/highgui.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/core/utility.hpp>

#include <opencv2/ximgproc.hpp>

#include <ctype.h>
#include <stdio.h>
#include <iostream>

using namespace cv;
using namespace cv::ximgproc;
using namespace std;

static const char* window_name = "SLIC Superpixels";

static const char* keys =
    "{h help      | | help menu}"
    "{c camera    |0| camera id}"

This file has been truncated. show original

I’m using VisualStudio17, 19

the error message is:

|error|LNK2019|struct cv::Ptr __cdecl cv::ximgproc::createSuperpixelSLIC(class cv::debug_build_guard::_InputArray const &,int,int,float) (?createSuperpixelSLIC@ximgproc@cv@@YA?AU?$Ptr@VSuperpixelSLIC@ximgproc@cv@@@2@AEBV_InputArray@debug_build_guard@2@HHM@Z)main Unverifiable external symbols referenced by the function |SLIC|C:\Users\Taeyeong\source\repos\SLIC\SLIC\main.obj|1||

I downloaded contrib files on:

and

moved the folder and file “ximgproc, ximgproc.hpp”
in folder “opencv_contrib_master/modules/ximgproc/include/opencv2”

to

C:\opencv\build\include\opencv2
(the opencv folder that I use)

why the error occurred?

should I make the project file with “cmake”?
(I made project file directly using VisualStudio and set project debug properties to include opencv)

berak · October 28, 2021, 2:09pm

you have to link DEBUG libs (those ending with d), not RELEASE libs.
please check

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An error occurred using opencv SLIC c++

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