%?Taylor?Johnson
%?Sarah?McGee
%?Robert?Ortman
%?Tianhe?Yang
%?ELEC301
%?Project?-?HDR?Image?Creation?Algorithms
%?2006-12-10

%hdriCreating?Creates?an?HDR?image
%param?algorithm:?string?algorithm?to?use
%param?fileNPre:?base?file?name?prefix
%param?fileNSuf:?base?file?name?suffix
%param?startIndx:?index?to?start?at
%param?N:?number?of?input?images
function?[mRed?mGreen?mBlue]?=?hdriCreating（algorithm?algorithmParam?fileNPre?fileNSuf?startIndx?N）
????bitrate?=?algorithmParam（1）;

????%iterate?over?input?images
????for?（i=startIndx:N）
????????%read?the?ith?image:?expects?filenames?like?img001.jpg?img002.jpg?img003.jpg?...
????????strNum?=?strcat（floor（i/100）?+?‘0‘?floor（i/10）?+?‘0‘?mod（i10）?+?‘0‘）;
????????[imgData?imgMap]?=?imread（strcat（fileNPre?strNum?fileNSuf））;

????????[x?y?z]?=?size（imgData）;

????????reds（::i-startIndx+1）?=?imgData（::1）;
????????greens（::i-startIndx+1）?=?imgData（::2）;
????????blues（::i-startIndx+1）?=?imgData（::3）;
????end

????switch?lower（algorithm）
????????case?{‘createaverage‘}
????????????[imgRed?imgGreen?imgBlue]?=?createAverage（reds?greens?blues?bitrate）;
????????case?{‘createweighted‘}
????????????[imgRed?imgGreen?imgBlue]?=?createWeighted（reds?greens?blues?bitrate）;
????????case?{‘createupsample‘}
????????????[imgRed?imgGreen?imgBlue]?=?createRandomUpsample（reds?greens?blues?bitrate）;
????????case?{‘createpiece‘}
????????????[imgRed?imgGreen?imgBlue]?=?createPiece（reds?greens?blues?bitrate）;
????????otherwise
????????????[imgRed?imgGreen?imgBlue]?=?createAverage（reds?greens?blues?bitrate）;
????end

????%we‘ll?return?the?composite?matrix?at?this?point
????mRed?=?imgRed;
????mGreen?=?imgGreen;
????mBlue?=?imgBlue;
end

%createAverage
%Divides?each?images‘?color?data?by?the?total?number?of?images?and?adds?them
%together?so?each?part?of?each?image?is?given?equal?weight
function?[mRed?mGreen?mBlue]?=?createAverage（reds?greens?blues?bitrate）
????[x?y?N]?=?size（reds）;
????%set?up?output?matrices
????pixels?=?x*y;
????imgRed?=?double（zeros（xy））;
????imgGreen?=?double（zeros（xy））;
????imgBlue?=?double（zeros（xy））;

????%iterate?over?input?images
????for?（i=1:N）
????????%add?luminance?values?from?ith?image?to?running?total
????????imgRed?=?imgRed?+?（double（reds（::i））.*（2^bitrate）?./?（N））;
????????imgGreen?=?imgGreen?+?（double（greens（::i））.*（2^bitrate）?./?（N））;
????????imgBlue?=?imgBlue?+?（double（blues（::i））.*（2^bitrate）?./?（N））;
????end

????%return?the?result
????mRed?=?imgRed;
????mGreen?=?imgGreen;
????mBlue?=?imgBlue;
end

%createWeighted
%Weights?each?images‘?color
function?[mRed?mGreen?mBlue]?=?createWeighted（reds?greens?blues?bitrate）
????[x?y?N]?=?size（reds）;
????%set?up?output?matrices
????pixels?=?x*y;
????imgRed?=?（zeros（xy））;
????imgGreen?=?（zeros（xy））;
????imgBlue?=?（zeros（xy））;

????bitrateDefault?=?8;

????%iterate?over?input?images?to?find?average?and?

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件????????8769??2006-12-14?00:25??hdriCreating.m
?????文件????????3806??2006-12-14?00:44??hdriMain.m
?????文件????????2865??2006-12-13?22:55??hdriTest.m
?????文件???????21950??2006-12-13?23:20??hdriToneMapping.m
?????目錄???????????0??2006-12-21?01:36??images\
?????文件??????308217??2006-12-13?04:18??images\belg001.jpg
?????文件??????353702??2006-12-13?04:18??images\belg002.jpg
?????文件??????411739??2006-12-13?04:18??images\belg003.jpg
?????文件??????457056??2006-12-13?04:18??images\belg004.jpg
?????文件??????516290??2006-12-13?04:18??images\belg005.jpg
?????文件??????543131??2006-12-13?04:18??images\belg006.jpg
?????文件??????554866??2006-12-13?04:18??images\belg007.jpg
?????文件??????556535??2006-12-13?04:18??images\belg008.jpg
?????文件??????534141??2006-12-13?04:19??images\belg009.jpg
?????文件??????516226??2006-12-13?04:20??images\cathedral001.jpg
?????文件???????95057??2006-12-13?04:39??images\cathedral001s.jpg
?????文件??????729468??2006-12-13?04:20??images\cathedral002.jpg
?????文件??????106042??2006-12-13?04:39??images\cathedral002s.jpg
?????文件???????70582??2006-12-13?04:26??images\chairs001.jpg
?????文件???????99272??2006-12-13?04:26??images\chairs002.jpg
?????文件??????111318??2006-12-13?04:26??images\chairs003.jpg
?????文件??????126837??2006-12-13?04:26??images\chairs004.jpg
?????文件??????121237??2006-12-13?04:26??images\chairs005.jpg
?????文件??????114287??2006-12-13?04:24??images\door001.jpg
?????文件??????116826??2006-12-13?04:24??images\door002.jpg
?????文件???????84614??2006-12-13?04:24??images\door003.jpg
?????文件???????37021??2006-12-13?04:24??images\door004.jpg
?????文件???????18918??2006-12-13?04:25??images\door005.jpg
?????文件???????14567??2006-12-13?04:25??images\door006.jpg
?????文件???????30579??2006-11-20?03:28??images\ebony001s.jpg
?????文件???????34853??2006-11-20?03:28??images\ebony002s.jpg
............此處省略222個(gè)文件信息