Converting digital image data

Abstract

The present disclosure relates to a processing arrangement for converting digital image data. Conventional approaches suffer from speed or non-ideal compressing schemes. These drawbacks are overcome by the processing arrangement for determining a digital output value from a digital input value based on a linear function and a square root function. The processing arrangement includes a first calculation block configured to determine a first output value of the linear function, a second calculation block configured to determine a second output value of the square root function. A selector is configured to select, based on a comparison between the digital input value and a threshold value, whether the digital output value is determined by the first calculation block or by the second calculation block.

Dependencies are inferred from the claim text.