CSS - Retirar scroll na vertical com imagem de height 100%

<style>
    html, body {height:100%;}
    /* RESOLVE O PROBLEMA DA BARRA NA VERTICAL */
    img {height:100%; vertical-align:top;}
</style>
<img src='imagem.jpg' />

Fonte: http://stackoverflow.com/questions/9281820/scrollbar-issue-when-image-height-is-set-to-100