<td><a href="#"><img src="{{ $article->images['thumb'] ? "http://www.placehold.it/400" }}" width="100px"></a></td> code example
Example 1: create transparent placeholder img
from PIL import Image
img = Image.new('RGB', (32,32), color='white')
img.save('empty.png')
quit()
Example 2: create transparent placeholder img
convert -size 32x32 xc:white empty.jpg