Infrared and thermal imaging is a global area inspection technique that detects and measures temperature and temperature differences to detect indication of disbond, delamination, cracks, residual stress and other conditions that impact heat flow. IR images provides temperature maps. Thermography is the use of IR imaging and measurement camera to see and measure thermal energy. Thus thermography measures heat which is constantly radiating away from any surface. This method is attractive for diagnosis because of its safe and non-invasive nature. Thermal images are observed in a color gradation from hot to cold. We can see a spectrum of colors from darker to lighter ones as a temperature increase is being examined.As temperature increase is an indication of most of the diseases IR imaging technique can be used for diagnostic purposes. IR imaging techniques are used in industries for checking the corrosion damage of exposed pipelines, delamination, cracks etc.