Image processing-how does php resize small images?

I want to resize a small image in the same way as a windows desktop. it is tiled to a large size. what should I do? I still cannot find a clue after using Imagick for a long time. I want to resize a small image in the same way as a windows desktop. it is tiled to a large size. what should I do? I still cannot find a clue after using Imagick for a long time.

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I want to resize a small image in the same way as a windows desktop. it is tiled to a large size. what should I do? I still cannot find a clue after using Imagick for a long time.

Imagick has a monage tool.
The usage is as follows:

To tile a set of images, allowing ImageMagick to pick the layout for you: $ montage *. jpg out.jpg To tile a set of 7 images, arranged in a single row: $ montage *. jpg-tile 7x1 out.jpg To tile a set of 5 images, arranged in a single column: $ montage *. jpg-tile 1x5 out.jpg To tile a set of 10 images, arranged in two rows: $ montage *. jpg-tile 5x2 out.jpg To specify that only a spacing of 2 pixels be used between images in the above setting: $ montage *. jpg-tile 5x2-geometry + 2 + 2 out.jpg Tried with: ImageMagick 6.6.9-7 and Ubuntu 12.04