extracted table cell coordinates(stream) do not corresponds to page image converted from pdf

[baleris]

My problem is similar to #486 , only changes here is instead of border table we have a non bordered table(flavor='stream'). I have followed the same procedure suggested in #486 however its not working for non-border one. Looks like the conversion of coordinates from pdf level to image level is different here.
Could any one help me to get the converted coordinates for image level (converted from pdf page).

is there any chance to get img = table._image[0] in "stream" ?