Gamma Calculation page

Gamma script

Submit your own data file for gamma calculation. Two methods are implemented.

1. For grayscale, standard SRGB encoding formula (V) is used to fit the input and output data:

out = [(in+b) / (1+b)]gamma

2. For grayscale ramp, log-log gamma is also calculated together with standard SRGB encoding formula:

log (out) = gamma * log (in) + k

3. For RGB ramps, the data is fit either to the above SRGB encoding formula or to "classical" power function - depends on quality of the fit :

out = k * ingamma

These are in principle three different gamma values. The log-log gamma is what is often being referred to as "display gamma".

Choose one option per submission Grayscale gamma RGB Ramps - gamma
Select type of the data (grayscale or color ramps).
Upload File

Choose tab delimited file (*.txt).