How to change the values of HSV channels of a pixel using OpenCV4Android?

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The first of the following two images, rgbaMat.bmp, is a 5px*5px .bmp image in RGBA format. This image was read from sdcard using Highgui.imread and then converted to HSV using Imgproc.cvtColor(rgbaMat, hsvMat, Imgproc.COLOR_BGR2HSV); resulting in hsvMat.bmp (the second image):

The following are the same images enlarged to 100px*100px in MS Paint, for viewing purposes.

Then after executing the following code, the image I got changedMat.bmp is given as follows, followed by its enlarged version.

The problem is that what I expected when writing the code was that the alternate pixels should have white (H=0, S=0, V=255) and black (``) hues respectively, as can be checked in the HSV section on this website. But what I am getting is red and black.

The question is why? Where am I going wrong?

public void doProcessing(View view) {
    Mat rgbaMat = Highgui.imread("/mnt/sdcard/DCIM/rgbaMat.bmp");

    Mat hsvMat = new Mat();
    Imgproc.cvtColor(rgbaMat, hsvMat, Imgproc.COLOR_BGR2HSV);
    Highgui.imwrite("/mnt/sdcard/DCIM/hsvMat.bmp", hsvMat);//check

    int counter=1;
    for (int firstCoordinate = 0; firstCoordinate<hsvMat.rows(); firstCoordinate++) {
        for (int secondCoordinate = 0; secondCoordinate<hsvMat.cols(); secondCoordinate++) {
            Log.i(TAG, "HAPPY " + Arrays.toString(hsvMat.get(firstCoordinate, secondCoordinate)));//check

            double[] pixelChannels = hsvMat.get(firstCoordinate, secondCoordinate);

            if (counter%2 != 0) {
                pixelChannels[0]=0;
                pixelChannels[1]=0;
                pixelChannels[2]=255;
            } else {
                pixelChannels[0]=0;
                pixelChannels[1]=0;
                pixelChannels[2]=0;
            }

            hsvMat.put(firstCoordinate, secondCoordinate, pixelChannels);

            counter++;
            Log.i(TAG, "HAPPY PAPPY" + Arrays.toString(hsvMat.get(firstCoordinate, secondCoordinate)));//check
        }
    }
    Highgui.imwrite("/mnt/sdcard/DCIM/matChanged.bmp", hsvMat);//check
}

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EDIT:

The Log.i statements on Line#11 and Line#28 print out the following output, which is good.

01-12 13:46:44.445: I/MainActivity(29690): HAPPY [0.0, 0.0, 164.0]
01-12 13:46:44.445: I/MainActivity(29690): HAPPY PAPPY[0.0, 0.0, 255.0]
01-12 13:46:44.445: I/MainActivity(29690): HAPPY [29.0, 252.0, 255.0]
01-12 13:46:44.445: I/MainActivity(29690): HAPPY PAPPY[0.0, 0.0, 0.0]
01-12 13:46:44.445: I/MainActivity(29690): HAPPY [0.0, 0.0, 164.0]
01-12 13:46:44.446: I/MainActivity(29690): HAPPY PAPPY[0.0, 0.0, 255.0]
01-12 13:46:44.446: I/MainActivity(29690): HAPPY [29.0, 252.0, 255.0]
01-12 13:46:44.446: I/MainActivity(29690): HAPPY PAPPY[0.0, 0.0, 0.0]
01-12 13:46:44.446: I/MainActivity(29690): HAPPY [0.0, 0.0, 164.0]
01-12 13:46:44.446: I/MainActivity(29690): HAPPY PAPPY[0.0, 0.0, 255.0]
01-12 13:46:44.446: I/MainActivity(29690): HAPPY [29.0, 252.0, 255.0]
01-12 13:46:44.447: I/MainActivity(29690): HAPPY PAPPY[0.0, 0.0, 0.0]
01-12 13:46:44.447: I/MainActivity(29690): HAPPY [0.0, 0.0, 164.0]
01-12 13:46:44.447: I/MainActivity(29690): HAPPY PAPPY[0.0, 0.0, 255.0]
01-12 13:46:44 ...