Abstract: A method for converting a digital image to an analog-simulative film-like digital image includes (a.) obtaining digital image input values for a number of pixels, each pixel having a digital image input value X, wherein the range of input values for all pixels defines the input dynamic range; (b.) for each pixel, determining an analog-simulative film-like output value Y = ∑ i = 1 M ⁢   ⁢ A i ⁢   ⁢ X Pi + Bi wherein Ai, pi, and Bi are real numbers, and M is an integer value greater than or equal to 1; and (c.) communicating the analog-simulative film-like digital image or data associated therewith to a remote facility over a network.

Abstract: A method for converting a digital image to an analog-simulative film-like digital image is described wherein input pixel values (designated X) from the original digital image are converted to film-like output values (designated Y) wherein Y=AXp+B. The input values X, which range from Xmin to Xmax, are divided into consecutive intervals wherein different values of A, p, and B are applied for each interval. Most preferably, three intervals are defined so as to correspond to low, medium, and high light/radiation response intervals on film. In a low light/radiation region wherein X<X1, A is generally chosen to be less than 1 to provide range compression at the low end of the input dynamic range, and p is generally chosen to be greater than 1 to provide increasing light response. In a high light/radiation region wherein X>X2, p is generally chosen to be less than 1 to provide range compression.