["python","image","arrays","python-imaging-library"]
Convert PIL Image to byte array?

I have an image in PIL Image format. I need to convert it to byte array. img = Image.open(fh, mode='r') roiImg = img.crop(box) Now I need the roiImg as a byte array.
import io from PIL import Image img = Image.open(fh, mode='r') roi_img = img.crop(box) img_byte_arr = io.BytesIO() roi_img.save(img_byte_arr, format='PNG') img_byte_arr = img_byte_arr.getvalue() With this, I don't have to save the cropped image on my disk and I am able to retrieve the byte array from a PIL cropped image.