Open-CV - 未正确加载

Question

Open-CV - 未正确加载

Ber*_*rer 7 c++ ocr opencv tesseract image-processing

我正在使用Ubuntu 14.04并且我正在尝试编译此代码,但无论如何我都会遇到这些错误,我相信它与包含OpenCV库有关,但我不确定.任何人都可以帮我吗？错误:

main.cc:66:37:错误:'CV_RETR_EXTERNAL'未在此范围内声明

main.cc:66:55:错误:未在此范围内声明'CV_CHAIN_APPROX_NONE'

main.cc:81:28:错误:'CV_BGR2GRAY'未在此范围内声明

代码(抱歉格式化,我无法做到这一点):

#include <opencv2/imgproc.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <tesseract/baseapi.h>
#include <iostream>
void rgb2cmyk(cv::Mat& src, std::vector<cv::Mat>& cmyk)
{
CV_Assert(src.type() == CV_8UC3);

cmyk.clear();
for (int i = 0; i < 4; ++i)
    cmyk.push_back(cv::Mat(src.size(), CV_32F));

for (int i = 0; i < src.rows; ++i)
{
    for (int j = 0; j < src.cols; ++j)
    {
        cv::Vec3b p = src.at<cv::Vec3b>(i,j);

        float r = p[2] / 255.;
        float g = p[1] / 255.;
        float b = p[0] / 255.;
        float k = (1 - std::max(std::max(r,g),b));

        cmyk[0].at<float>(i,j) = (1 - r - k) / (1 - k); 
        cmyk[1].at<float>(i,j) = (1 - g - k) / (1 - k);
        cmyk[2].at<float>(i,j) = (1 - b - k) / (1 - k);
        cmyk[3].at<float>(i,j) = k;
    }
}
}

int main()
{
cv::Mat im0 = cv::imread("scratchcard.png");
if (!im0.data)
    return -1;

std::vector<cv::Mat> cmyk;
rgb2cmyk(im0, cmyk);

cv::Mat im1;
im1 = cmyk[3].mul(1 - cmyk[1]) > 0.25;

cv::Mat im2;
im1.convertTo(im2, CV_8U);

std::vector<std::vector<cv::Point> > contours;
cv::findContours(im2, contours, CV_RETR_EXTERNAL, CV_CHAIN_APPROX_NONE);

double max_area = 0;
int max_idx = 0;
for (int i = 0; i < contours.size(); i++)
{
    double area = cv::contourArea(contours[i]);
    max_idx  = area > max_area ? i : max_idx;
    max_area = area > max_area ? area : max_area;
}

im2.setTo(cv::Scalar(0));
cv::drawContours(im2, contours, max_idx, cv::Scalar(255), -1);

cv::Mat im3;
cv::cvtColor(im0, im3, CV_BGR2GRAY);
im3 = ((255 - im3) & im2) > 200;

cv::Mat dst = im3.clone();
cv::findContours(dst.clone(), contours, CV_RETR_EXTERNAL, CV_CHAIN_APPROX_NONE);
for (int i = 0; i < contours.size(); i++)
{
    if (cv::contourArea(contours[i]) < 100)
        cv::drawContours(dst, contours, i, cv::Scalar(0), -1);
}

tesseract::TessBaseAPI tess;
tess.Init(NULL, "eng", tesseract::OEM_DEFAULT);
tess.SetVariable("tessedit_char_whitelist", "0123456789");
tess.SetPageSegMode(tesseract::PSM_SINGLE_BLOCK);
tess.SetImage((uchar*)dst.data, dst.cols, dst.rows, 1, dst.cols);

char* out = tess.GetUTF8Text();
std::cout << out << std::endl;

cv::imshow("src", im0);
cv::imshow("dst", dst);
cv::waitKey();
return 0;
}

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更新:使用cv ::"whatever"修复了CV_RETR_EXTERNAL和CV_CHAIN_APPROX_NONE错误.但是,CV_BGR2GRAY错误仍然存在,如果更改为cv :: COLOR_BGR2GRAY,则整个代码会突出显示为错误.有人有线索吗？