Turn latlngs into image file?

I have a huge CSV file of WGS84 latitudes and longitudes, and I would like to turn these into a large image file that I can print (with each point being a pixel on the image).

What is the best way to do this?

Currently I'm planning to convert them into eastings/northings and then use imagemagick to print a circle at each point, following the approach taken by this author (in the imagemagick script at the bottom of the post).

But I'm wondering if there's a simpler way. I'm not a GIS expert, and perhaps there's even a dedicated geospatial library for doing this?

UPDATE

As requested, here's a sample of the data. The points are all within the UK, but they don't form a regular grid.

Time,latitude,longitude
2014-12-27 18:35:10,51.7438644,-2.2094204
2014-12-27 18:34:08,51.7438657,-2.2094219
2014-12-27 18:33:06,51.7438657,-2.2094219
2014-12-27 18:32:04,51.7438689,-2.2094198
2014-12-27 18:31:03,51.7438716,-2.2094109
2014-12-27 18:30:01,51.7438537,-2.2094211