1 .\" RCSid goes here.

     2 .TH "PDELTA" "1" "16/01/2011" "RADIANCE" ""

     3 .SH "NAME"

     4 pdelta \- compute 1976 CIE Lab deltaE* between two Radiance pictures

     5 .SH "SYNOPSIS"

     6 .B pdelta image1.hdr image2.hdr

     7 .SH "DESCRIPTION"

     8 .I pdelta

     9 calculates the color difference deltaE* between two HDR images. The operation

    10 takes place in 1976 CIE Lab color space. The result is an HDR image which is 

    11 sent to STDOUT.

    12 .SH "EXAMPLES"

    13 To calculate the deltaE* Lab color difference between two HDR images

    14 and store the result in output.hdr

    15 .IP "" .2i

    16 pdelta image1.hdr image2.hdr > output.hdr