Change output resolution by export_fig

Hello, I'm trying to save my diagrams with png higher resolution, but I can't find a right code.

My output looks so:

export_fig(Full_Plot_Path_Name);

I tried already:export_fig(Full_Plot_Path_Name) -m2;

export_fig(Full_Plot_Path_Name -m2);
export_fig(Full_Plot_Path_Name '-m2');
export_fig(Full_Plot_Path_Name, '-m2');

Its not working, what can i do?

Resolution - by default, export_fig exports bitmaps at screen resolution. However, you may wish to save them at a different resolution. You can do this using either of two options: -m<val>, where is a positive real number, magnifies the figure by the factor for export, e.g. -m2 produces an image double the size (in pixels) of the on screen figure; -r<val>, again where is a positive real number, specifies the output bitmap to have pixels per inch, the dimensions of the figure (in inches) being those of the on screen figure. For example, using:

export_fig test.png -m2.5

Full_Plot_Path_Name = 
    /home/nik/workspace/QT/Software_2.0_QT/IO/An_Ab_1_3-02/An_Ab_1_3-02_RES_F2/An_Ab_1_3-02_Plt_SNR_-030.png

Answer 1

[Nik Rocky]

I found it:

export_fig('-m3', Full_Plot_Path_Name)

Answer 2

[Fangjun Jiang]

export_fig() must be a customized function. You have to look at its syntax to learn how to specify resolution.

You could use the built-in function printf(). It can specify format and resolution.

[Nik Rocky]

Hey Fangjun, yes I know, thanks. I read documentation but not found special input rules.

pintf() not alowe me to make some special datatypes/rules.

export_fig https://de.mathworks.com/matlabcentral/fileexchange/23629-export_fig