how can i make the isotherm plot from excel data using MATLAB

right now i m using FLIR camera by which i can get the single image data as well i can capture the whole video which is in .seq file.after that i export the data .by which i get the data in .csv file thn by using excel sheet i m able to convert the data points to .xls.but now i am facing prblm that how can i plot the data without having x,y coordinate only it shows the temperature reading(around 1lakh temp points are thr) to get isotherm plot.is it possible to draw in matlab plz help me if possible

Answer 1

[Grzegorz Knor]

Try function contour or imagesc.