Why the output of "Retina Magno" changed consistently when applying retina to a single picture

edit

what do you mean: cycle index ? (is there any code ?)

imho, picture b shows an input on the left side(with a cyclic grayscale ramp) and the parvo output img on the right

Thanks for your reply！

was it about the image above ? (i wasn't sure)

The code is as follows.

 inputFrame = cv::imread("F:/changed/13.png");
        myRetina->setup("RetinaDefaultParameters.xml");
        for (int i=0;i<=40;i=i+1)
        {
            // run retina filter
            myRetina->run(inputFrame);
            // Retrieve and display retina output
            myRetina->getParvo(retinaOutput_parvo);
            //myRetina->getMagno(retinaOutput_magno);
            cv::imshow("retina input", inputFrame);
            cv::imshow("Retina Parvo", retinaOutput_parvo);
            //cv::imshow("Retina Magno", retinaOutput_magno);
            cv::waitKey(10);
        }

With the cycle index being increased, the output of "Retina Magno" changed consistently and at last the output was a black image.

so, completely different, from what i thought ;)

well i tried, and i can side your findings more or less..

(well, it gets darker here, but not totally black)

it's one of those things, where you probably might want to ask the author for an explanation ?)

I just try to apply the retina to a single image.

The image I tested is a tank model that is on the desk. In the fifth loop, there is only a tank in the retinaOutput_magno. However, in the tenth loop, both the tank and the background appear in the retinaOutput_magno. I am intresting in the specific order in which different objects appear or disappear in the magno output. What factors affect the order?

just to clarify: the parvo img stays constant, right ?

As I observed, the parvo img is dynamic.

I added a new question ;)