cppThermalCamera v0.2.0
keymap:
     f  | flip frame horizontally
     i  | toggle information (display [thermal area outline, colormap name])
     s  | scaling interpolation
     c  | toggle crosshair
     x  | change crosshair color
     w  | toggle temp conversion
    h l | toggle High/Low points
    b n | thermal area - +
     m  | cycle through Colormaps
     p  | save frame to PNG file
    r t | record / stop Video avi file
     q  | quit