Issue with imread. Strange float values

I'm trying to simple load an image (TIFF) and display a pixel value.

If I open the image using ImageJ the values are 32-bit float. But opening the same image using opencv I get really strange float values, e.g. 4.2039e-44.

If I read the value of a specific pixel using "int" the presented value is correct. Below is the code I use to test.

#include <opencv2/highgui/highgui.hpp>
#include <opencv2/core/core.hpp>
#include <iostream>

int main(int argc, char **argv) {
    std::string imageFile = "image.tiff";

    cv::Mat image;
    image = cv::imread(imageFile, CV_LOAD_IMAGE_ANYDEPTH);   // Read the file

    if (!image.data)                              // Check for invalid input
    {
        std::cout << "Could not open or find the image: " << imageFile << std::endl;
        return -1;
    }
    std::cout << "Image:" << image.rows << " x " << image.cols << " Channels: " << image.channels() << " Depth: " << image.depth() << std::endl;
    std::cout << "Value at 0,0: " << image.at<float>(0,1)<< std::endl; // Strange Value
    std::cout << "Value at 0,0: " << image.at<int>(0,1)<< std::endl; // Correct Value

    return (EXIT_SUCCESS);
}

Trying to move forward with the code, I decided to create a function to convert the data to "int" reading from the file. As a temporary solution this worked, but I'm still looking for the reason why the data is being loaded wrong.

int main(int argc, char **argv) {
    std::string imageFile = "/home/slepicka/XSConfig/image.tiff";

    cv::Mat image = openImage(imageFile);

    if (!image.data)                              // Check for invalid input
    {
        std::cout << "Could not open or find the image: " << imageFile << std::endl;
        return -1;
    }

    std::cout << "Image:" << image.rows << " x " << image.cols << " Channels: " << image.channels() << " Depth: " << image.depth() << " Type: " << image.type() << std::endl;
    std::cout << "Value at 0,0: " << image.at<int>(0,1)<< std::endl; // Correct Value
    //std::cout << "Data: " << image << std::endl;
    return (EXIT_SUCCESS);
}

cv::Mat openImage(std::string filename){
    cv::Mat imageLoad = cv::imread(filename, CV_LOAD_IMAGE_ANYDEPTH);

    if(imageLoad.type() == CV_32F){
        return convertToInt(imageLoad);
    }

    return imageLoad;

}

cv::Mat convertToInt(cv::Mat source){
    int r, c;
    cv::Mat converted;

    converted.create(source.rows, source.cols, CV_32SC1);

    for (r=0; r<source.rows;r++) {
        for (c=0; c<source.cols;c++) {
            converted.at<int>(r, c) = source.at<int>(r, c);
        }
    }
    return converted;
}