intensity graph pixel size

[Husain111]

Can I control the pixel size in Intensity graph. I have 2D array but I want some elements to take larger area than the others.  For example, If I have 3X3 area I will get 9 pixel with equal area. I want to make, for example, the first element to be presented by 90% of the first raw in the graph and the other two with 5% each. 

Thanks

[MarcDub]

Simply create a 20x20 array and assign the values of your first row to the first 18 rows and the rest of yourvalues to the last 2 rows, and then plot the 20x20 array into the intensity graph.

[Husain111]

the array is generated by another software. What I said before was just an example. It might turn to be 1000x2000 array depending on the input of the other program. I am trying to make a LV code read and plot the arrays without human intervention. The software gives the boundary of the voxels, which I can use to set the pixels size.