imagesc
Display a matrix as an image with scaled colors.
Syntax
h = imagesc(z)
h = imagesc(x, y, z)
h = imagesc(..., [cmin cmax])
Inputs
- x, y, z
- Range of the x, y, and z axes.
- cmin, cmax
- Range of the colormap.
Outputs
- h
- Handle of the imagesc graphics object.
Examples
Simple imagesc example:
cla;
z = [1 2 3; 4 5 6; 7 8 9];
imagesc(z)
colorbar
Figure 1. imagesc with colormap limits example:
cla;
z = [1 2 3; 4 5 6; 7 8 9];
imagesc(z, [3 7]);
colorbar
Figure 2. Comments
If there are no axes, they will be created first. If x and y are omitted, the index of the z columns is used for the x coordinates and the index of the z rows is used for the y coordinates.