To achieve a smoother enlargement this plug-in resamples an original image upwards just a little at a time, spreading the color and brightness smoothly at each enlargement, until the desired final dimensions are reached.

The Figure shows a original thumbnail of 100 x 75 pixels that has been resampled in a single pass. While the image on the right was passed through the Image Enlarge plug-in and, as you can see from the insets, there is almost no pixelation.

This plug-in helps to reduce pixellation caused by enlarging an image