fractal-mosaics/reference/upstream-matlab/std_calc.m

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Mathematica
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clear all
close all
color = 0;
% ----------------------------- get jpeg file paths --------------------
'getting image paths...'
if color ==0
path = ['../library_images/graffiti_256_black_white/'];
else
path = ['C:\Americano\library_images\graffiti_256_color\'];
end
% files = dir('C:\Image_registration\flickr_spider\graffiti_library\*.jpg'); % get file names
directories = dir(path); % get directory names
num_files = 0;
file_count = 0;
dir_temp = directories(3).name; % get first directory name
files = dir([path,dir_temp,'/*.jpg']); % get file names for first directory
file_count = length(files);
% add directory path to jpeg files name
for j=1:length(files)
files(j).name = [path,dir_temp,'/',files(j).name];
end
for i=2:(length(directories)-2) % offset by 2 because first two entries are '.' and '..'
dir_temp = directories(i+2).name; % get next directory name
files_temp = dir([path,dir_temp,'/*.jpg']); % get file names for given directory
% add directory path to jpeg files name
for j=1:length(files_temp)
files_temp(j).name = [path,dir_temp,'/',files_temp(j).name];
end
% concatenate file paths from next directory to existing
files((file_count+1):(file_count+length(files_temp))) = files_temp;
file_count = file_count+length(files_temp);
% pause
end
% bins = 16;
% hist_x = [(255/bins)/2:255/bins:(255-(255/bins)/2)];
% hist_matrix = zeros(length(files),bins);
% radial_freq = 6;
% angular_freq = 6;
% vector_len = radial_freq*angular_freq;
std_matrix = zeros(length(files),1);
% gfd_matrix = zeros(8000,vector_len);
size_v = [128 128];
% avg_gfd = zeros(radial_freq,angular_freq);
for i=1:length(files)
i
Im_lib = imread([files(i).name]); % read in library image
Im_lib = imresize(Im_lib,size_v); % resize image to 128
std_lib = std2(Im_lib);
std_matrix(i) = std_lib;
% figure(1),subplot(2,1,1),imshow(Im_lib)
% subplot(2,1,2),imshow(Im_lib)
% subplot(3,1,3),mesh(I1_fm)
% figure(1),subplot(1,2,1),imshow(Im_lib)
% subplot(1,2,2),mesh(I1_fm);
% pause
% subplot(1,2,1),imshow(Im_lib)
% subplot(1,2,2),plot(histo)
end
% pause
% std_matrix = single(gfd_matrix);
save('std_matrix_graffiti_128', 'std_matrix')
% save('std_matrix_SF_128', 'std_matrix')