File: InvertGammaTable.m

package info (click to toggle)
psychtoolbox-3 3.0.19.14.dfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 86,796 kB
  • sloc: ansic: 176,245; cpp: 20,103; objc: 5,393; sh: 2,753; python: 1,397; php: 384; makefile: 193; java: 113
file content (23 lines) | stat: -rw-r--r-- 724 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
function iGammaTable = InvertGammaTable(gammaInput,gammaTable,precision)
% iGammaTable = InvertGammaTable(gammaInput,gammaTable,precision)
%
% Build an inverse gamma table.
%
% 1/21/95	dhb	  Wrote it.
% 8/4/96    dhb   Update for stuff bag routines.
% 8/21/97   dhb   Update for structures.
% 11/21/06  dhb   Update for PTB-3.

% Allocate space for the inverse table
[nInputLevels,nDevices] = size(gammaTable);
iGammaTable = zeros(precision,nDevices);

% Set up actual output levels
outDelta = 1/precision;
outputLevels = 0:outDelta:1-outDelta;
searchValues = outputLevels+outDelta/2;
gamutValues = searchValues(ones(nDevices,1),:);

% Make the table
iGammaTable = GamutToSettingsSch(gammaInput,gammaTable,gamutValues)';