Unable to display image with cvbridge

edit

Hi,

I am reading an image using the cv-bridge API with ROS and I just want to display the image to see what cv_bridge is processing as I need to debug the algorithm. My code is :

static const std::string OPENCV_WINDOW = "Image window";
class abc 
{ 
    public:
    abc() {  cv::namedWindow(OPENCV_WINDOW); }
    void function();
};

void function()
{
    cv_bridge::CvImagePtr cv_ptr(new cv_bridge::CvImage);
    std::vector<cv::Mat> channels;
    std::vector<cv::Mat> a_ch(3);
    cv_ptr->image = cv::imread("jackal_flipped_image.png",CV_LOAD_IMAGE_COLOR);
    cv_ptr->encoding = "bgr8";
    ....blah...
    cv::imshow(OPENCV_WINDOW,cv_ptr->image);
    cv::waitKey(10);
}

The image window comes up but does not show anything. It is just white in color. What am I missing or doing wrong?

Regards, rsmitha.