SystemError: tile cannot extend outside image
def crop_center(pil_img, crop_width, crop_height):
img_width, img_height = pil_img.size
return pil_img.crop(((img_width - crop_width) // 2,
(img_height - crop_height) // 2,
(img_width + crop_width) // 2,
(img_height + crop_height) // 2))
im_new = crop_center(im, 300, 150)
im_new.save('img.jpg', quality=95)