Using an appropriate file format and an appropriate set of options, MATLAB can export graphics of publication quality.
Refer to the "formattype" section of the "print" documentation to explore the different available figure formats. The vector graphics file formats may often render the best quality exports.
In addition, the "export_fig" File Exchange submission can assist you with exporting graphics. Note, however, that this code is created by the community and not officially supported by MathWorks. More information on these functions and exporting graphics can be found in the following MathWorks blog post: Creating and Exporting Publication-Quality Graphics.
