As part of business requirement , we need two modes square(360*360) and
landscape(400*192) of same image (actual image dimension is 1000*1000) .
We created image presets(wid & hei parameters added) & found that we
will get white background appended on the border of image if actual
image is landscape & we are trying to retrieve square image & vice versa
.So to remove white background, we applied format alpha-png which helped
us in removing transparent background but created another problem of