Hello,
I was wondering if it is possible to produce a plot, with Nevron, similar to this:

95% of original size (was 531x448) - Click to enlarge

The labels on the x and y axes will refer to the indices of entries of a matrix. The matrix contains values that are represented as the square blocks of colour (discretely) with a corresponding colour bar. Each axis label should be displayed from the midpoint (not corners) of the block edges, as shown in the above picture. Being able to reverse the ordering on the y-axis would be ideal too.

Any help is much appreciated.

Best regards,
Connor Rourke
(Software Engineer at SMT)

(Sent from my colleague's account since your Register button is not currently working, at least from our end.)