One such example is a 2012 Nature Materials article which is based on 6 types of nanoparticles, 3 ‘stripy’ and 3 ‘not stripy’ but where STM images had been provided for only one of the six samples. In his data request, Philip Moriarty had asked for the 6 data sets underpinning this article.
Some data have been finally released yesterday, but, as far as I can see, the data related to the Nature Materials 2012 article only include 3 data sets, the ones which are supposed to be stripy. It is of course critical to be able to examine the other ones too as the article is based on the idea that a difference in conductivity stems from a difference in monolayer structure.
Still it is worth looking at the raw data shared yesterday (I discuss here only the data related to this Nature Materials 2012 article, more posts will follow). First, here is the published image.
Can you spot those particles in the image below (unprocessed raw data, LUT chosen to be similar to the above)?
Did you find them?
Here is the same image, but with some contrast adjustment (but no filtering/processing).
Can you find them now? I can crop…
If I zoom in with a bilinear interpolation (thanks ImageJ),
it looks ‘better’…
Clearly these are the particles shown in the article. I think it is the right scan too but I may be wrong (there are two other scans of the same area in the folder shared yesterday but this one seems to be the closest). Here is a challenge: what image processing steps do you need to get from the raw data to the image presented in Nature Materials 2012?
Update 1 (20/05/2013): Fair points by ‘Commentator’ below. I insist though that I have found
Wally the right set of nanoparticles. See below.