in 2021

After 2020, 2021 was a another really quiet year on this blog, this time with a grand total of five articles posted… And, of those five articles, four were part of the tutorial Reconstruction of a Real Dataset. Although I do have to say that that tutorial took an enormous amount of time to write in comparison with an average article.

So, the quantity was low this year. But how about the quality? I’ll leave the final assessment to you, but one encouraging sign is that, in the six months that the complete tutorial has been online, already almost twenty people have requested the download link for the Apple dataset. Twenty readers of a blog post is not a lot, of course, but we’re talking about twenty people sending a personal request for a dataset that is only useful to actually run the code from the tutorial in practice, where the tutorial is for one particular Toolbox for reconstruction in computed tomography, in itself already not a widely known subject…

And, with that, I’ll wrap up the review of 2021 already…

As last year, I’d like to leave you with my best wishes for 2021 and the front of the (paper) greeting card that we sent to our friends and family (leaving off the line in Dutch saying “We puzzle towards a very nice year!”). This year, our card featured a so-called nonogram puzzle (this particular nonogram was designed by my daughter Riet).

Figure 1. Nonogram puzzle.Figure 1. Nonogram puzzle.

The back of the card contained an explanation of how to attack the puzzle. Roughly translated from Dutch: “The numbers next to and above the diagram indicate how many squares must be colored in the respective row or column. Between each group of colored squares in a row or in a column, there is at least one empty square. Indicate that a square is empty by putting a dot in it.” See the nonogram page on Wikipedia for more info.

The two empy squares that you get for free in the above puzzle are needed to make the solution of this particular nonogram unique. If you want to have a go at it, here’s a pdf to download for better quality printing.


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Submitted on 2 January 2022