Filtered up-sampling using different filters.
Performed using the Imagemagick convert program.

<table><tr><th rowspan=3>rgb</th><td>box:<br><img src="rgb-box.png" style="border:2px solid blue" alt="box (rgb)"></td>
<td>triangle:<br><img src="rgb-triangle.png" style="border:2px solid blue" alt="triangle (rgb)"></td>
<td>hermite:<br><img src="rgb-hermite.png" style="border:2px solid blue" alt="hermite (rgb)"></td>
<td>hanning:<br><img src="rgb-hanning.png" style="border:2px solid blue" alt="hanning (rgb)"></td>
<td>hamming:<br><img src="rgb-hamming.png" style="border:2px solid blue" alt="hamming (rgb)"></td>
</tr><tr><td>blackman:<br><img src="rgb-blackman.png" style="border:2px solid blue" alt="blackman (rgb)"></td>
<td>gaussian:<br><img src="rgb-gaussian.png" style="border:2px solid blue" alt="gaussian (rgb)"></td>
<td>quadratic:<br><img src="rgb-quadratic.png" style="border:2px solid blue" alt="quadratic (rgb)"></td>
<td>cubic:<br><img src="rgb-cubic.png" style="border:2px solid blue" alt="cubic (rgb)"></td>
<td>catrom:<br><img src="rgb-catrom.png" style="border:2px solid blue" alt="catrom (rgb)"></td>
</tr><tr><td>mitchell:<br><img src="rgb-mitchell.png" style="border:2px solid blue" alt="mitchell (rgb)"></td>
<td>lanczos:<br><img src="rgb-lanczos.png" style="border:2px solid blue" alt="lanczos (rgb)"></td>
<td>bessel:<br><img src="rgb-bessel.png" style="border:2px solid blue" alt="bessel (rgb)"></td>
<td>sinc:<br><img src="rgb-sinc.png" style="border:2px solid blue" alt="sinc (rgb)"></td>
</tr></table><hr>