Answers for "image in bootstrap column"

responsive image in bootstrap

<img src="..." class="img-responsive">

img class bootstrap

<!-- Circuler Image -->
 <img src="cinqueterre.jpg" class="img-circle" alt="Cinque Terre"> 
 
<!-- Image With some border-raduis property  -->
 <img src="cinqueterre.jpg" class="img-rounded" alt="Cinque Terre"> 
 
<!-- Image like thumbnail  -->
 <img src="cinqueterre.jpg" class="img-thumbnail" alt="Cinque Terre">

Bootstrap turn an image into a thumbnail with Bootstrap

<img src="example.png" class="img-thumbnail">