Possible tile node improvements

[Shrinks99]

I don't usually make requests for new features but I've stumbled upon a few areas where I think the tile node could be improved. Hopefully these suggestions aren't too far beyond the scope of work being done! I don't think any of these additions would interfere with the tile node's current default operation.

Reformatting

Currently the tile node takes the source input and tiles it while maintaining the source input format. This results in a loss of quality of the image as it gets tiled according to how many rows and columns the user has set.

While this currently works as expected the end result isn't always desirable. An option to tile the source while maintaining its original resolution and increasing the output format size accordingly would be quite nice.

Offsets

Currently the tile node does not have an option to offset the tiling. This would be nice to have for both the rows and columns.

Additional tile patterns?

This is possibly beyond the scope of the tile node but implementing different shapes such as hexagonal or triangular tiling (by cropping the edges of the source input) or Histogram-preserving hex-tiling (PDF) could be neat?

[rodlie]

All ImageMagick nodes (not related to IO) should be re-written, sadly don't have the time.