The image is a whiteboard with a flowchart drawn on it. The flowchart is titled "Spot height (X,Y) Digital Elevation Model" and it appears to be a diagram or flowchart that shows the relationship between a spot height and a digital elevation model. 

The flowchart has several boxes and arrows connecting them, each representing a different step in the process. The first box is labeled "Y = 1.2" and the second box is labelled "Regression Layer". The arrows indicate the direction of the flow of the data, while the third box is marked with a dotted line.

There are also several other boxes and boxes labeled with text in Thai, which likely provide further information about the data. The text is written in both English and Thai, and there is a legend at the bottom of the image that explains the meaning of each box. The background of the whiteboard is a light green color.