The problem with 16 bit imaging is that the image being captured has to be rendered in 8 bits so that it can be viewed on the computer screen. Moreover, the interesting parts of the data are very dim and with a simple scaling of the results to 8 bits, much of the object being image will probably be invisible. What is needed are transfer functions that will brighten, in a non-linear fashion, the image data, so that the fainter parts of the object are revealed. These transformations are only made to the displayed image, leaving the saved data untouched. AstroDMx Capture for Linux has been given a number of controls to optimise the visualisation of the data being captured. Here we were testing a gammalog display function to help reveal the object whilst being captured.
Final image of M8, the Lagoon Nebula
The images were captured while testing the new gammalog image display function in AstroDMx Capture for Linux.
The preview image can be brightened or dimmed using the other non-destructive controls of gamma, brightness and contrast.
Additional display transformation functions are being implemented now and will be tested as soon as possible.