Image segmentation for transparent or grey objects

Hi,I am just wondering is there any way that I can use image segmentation to show all the objects in this image whit the same color cz I tried converting it to a binary image and I got the background whit a white color and the objects whit dark color but there are some objects whit gray or transparent color that disappeared when I tried to set to a binary image cz what i am trying to do is to calculate the area of the objects in this image and there is some objects that have the same color of the background aka gray or transparent and when I tried to set it to a binary image they just disappeared whit background color except for objects whit deep colors . Cz I already tried Calculating the area of all the objects but the area of the gray objects Is missing