Correction to: Vis Comput Ind Biomed Art 3, 22 (2020)

https://doi.org/10.1186/s42492-020-00058-6

Following publication of the original article [1], the keywords are missing in the article.

Keywords: Photoacoustic microscopy, Spatial weight matrix, Dimensionality reduction, Distortion correction, Mutual information

The original article has been updated.