public String getResolution() {
        return this.resolution;
    }
<important>
<p>
To better control resolution and aspect ratio of thumbnails, we recommend that you use the values
<code>MaxWidth</code>, <code>MaxHeight</code>, <code>SizingPolicy</code>, and <code>PaddingPolicy</code> instead
of <code>Resolution</code> and <code>AspectRatio</code>. The two groups of settings are mutually exclusive. Do
not use them together.
</p>
</important>
<p>
The width and height of thumbnail files in pixels. Specify a value in the format <code> <i>width</i> </code> x
<code> <i>height</i> </code> where both values are even integers. The values cannot exceed the width and height
that you specified in the <code>Video:Resolution</code> object.
</p>

@return <p>
        To better control resolution and aspect ratio of thumbnails, we recommend that you use the values
        <code>MaxWidth</code>, <code>MaxHeight</code>, <code>SizingPolicy</code>, and <code>PaddingPolicy</code>
        instead of <code>Resolution</code> and <code>AspectRatio</code>. The two groups of settings are mutually
        exclusive. Do not use them together.
        </p>
        </important>
        <p>
        The width and height of thumbnail files in pixels. Specify a value in the format
        <code> <i>width</i> </code> x <code> <i>height</i> </code> where both values are even integers. The
        values cannot exceed the width and height that you specified in the <code>Video:Resolution</code> object.
aws-java-sdk-elastictranscoder/src/main/java/com/amazonaws/services/elastictranscoder/model/Thumbnails.java