From f618466c25d43f3bae9e40920273bf77de1e1149 Mon Sep 17 00:00:00 2001
From: leochanj105 <leochanj@live.unc.edu>
Date: Mon, 19 Oct 2020 23:09:30 -0400
Subject: initial sd-vbs

initial sd-vbs

add sd-vbs

sd-vbs
---
 .../toolbox_basic/pyramid/091399fbn-jets.3.jpg     | Bin 0 -> 25886 bytes
 .../common/toolbox/toolbox_basic/pyramid/expand.m  |   8 +++++++
 .../toolbox/toolbox_basic/pyramid/gauss_lowpass.m  |   9 +++++++
 .../common/toolbox/toolbox_basic/pyramid/gen_w.m   |  12 ++++++++++
 .../common/toolbox/toolbox_basic/pyramid/reduce.m  |   7 ++++++
 .../common/toolbox/toolbox_basic/pyramid/session.m |  26 +++++++++++++++++++++
 .../common/toolbox/toolbox_basic/pyramid/startup.m |   5 ++++
 7 files changed, 67 insertions(+)
 create mode 100755 SD-VBS/common/toolbox/toolbox_basic/pyramid/091399fbn-jets.3.jpg
 create mode 100755 SD-VBS/common/toolbox/toolbox_basic/pyramid/expand.m
 create mode 100755 SD-VBS/common/toolbox/toolbox_basic/pyramid/gauss_lowpass.m
 create mode 100755 SD-VBS/common/toolbox/toolbox_basic/pyramid/gen_w.m
 create mode 100755 SD-VBS/common/toolbox/toolbox_basic/pyramid/reduce.m
 create mode 100755 SD-VBS/common/toolbox/toolbox_basic/pyramid/session.m
 create mode 100755 SD-VBS/common/toolbox/toolbox_basic/pyramid/startup.m

(limited to 'SD-VBS/common/toolbox/toolbox_basic/pyramid')

diff --git a/SD-VBS/common/toolbox/toolbox_basic/pyramid/091399fbn-jets.3.jpg b/SD-VBS/common/toolbox/toolbox_basic/pyramid/091399fbn-jets.3.jpg
new file mode 100755
index 0000000..b91732f
Binary files /dev/null and b/SD-VBS/common/toolbox/toolbox_basic/pyramid/091399fbn-jets.3.jpg differ
diff --git a/SD-VBS/common/toolbox/toolbox_basic/pyramid/expand.m b/SD-VBS/common/toolbox/toolbox_basic/pyramid/expand.m
new file mode 100755
index 0000000..64e9fda
--- /dev/null
+++ b/SD-VBS/common/toolbox/toolbox_basic/pyramid/expand.m
@@ -0,0 +1,8 @@
+function J = expand(I)
+%
+%
+
+[sy,sx] = size(I);
+[x,y] = meshgrid(1:2*sx+1,1:2*sy+1);
+
+nx = 
\ No newline at end of file
diff --git a/SD-VBS/common/toolbox/toolbox_basic/pyramid/gauss_lowpass.m b/SD-VBS/common/toolbox/toolbox_basic/pyramid/gauss_lowpass.m
new file mode 100755
index 0000000..87ad4f1
--- /dev/null
+++ b/SD-VBS/common/toolbox/toolbox_basic/pyramid/gauss_lowpass.m
@@ -0,0 +1,9 @@
+function J = gauss_lowpass(I,a)
+
+if (nargin < 2),
+  a = 0.4;
+end
+
+w = gen_w(a);
+
+J = conv2(conv2(I,w,'same'),w','same');
diff --git a/SD-VBS/common/toolbox/toolbox_basic/pyramid/gen_w.m b/SD-VBS/common/toolbox/toolbox_basic/pyramid/gen_w.m
new file mode 100755
index 0000000..b255751
--- /dev/null
+++ b/SD-VBS/common/toolbox/toolbox_basic/pyramid/gen_w.m
@@ -0,0 +1,12 @@
+function w = gen_w(a)
+%
+
+if (nargin == 0),
+  a = 0.4;
+end
+
+w(3) = a;
+w(1) = 1/4 - a/2;
+w(5) = 1/4 - a/2;
+w(2) = 1/4;
+w(4) = 1/4;
diff --git a/SD-VBS/common/toolbox/toolbox_basic/pyramid/reduce.m b/SD-VBS/common/toolbox/toolbox_basic/pyramid/reduce.m
new file mode 100755
index 0000000..6837e8a
--- /dev/null
+++ b/SD-VBS/common/toolbox/toolbox_basic/pyramid/reduce.m
@@ -0,0 +1,7 @@
+function J = reduce(I)
+
+[nr,nc,nb] = size(I);
+for j=1:nb,
+    tmp = gauss_lowpass(I(:,:,j));
+    J(:,:,j) = tmp(1:2:nr,1:2:nc);
+end
\ No newline at end of file
diff --git a/SD-VBS/common/toolbox/toolbox_basic/pyramid/session.m b/SD-VBS/common/toolbox/toolbox_basic/pyramid/session.m
new file mode 100755
index 0000000..9d0aa6c
--- /dev/null
+++ b/SD-VBS/common/toolbox/toolbox_basic/pyramid/session.m
@@ -0,0 +1,26 @@
+%image_dir = '/home/barad-dur/d/malik/jshi/';
+%I = gifread([image_dir,'tape9/t9a1_L.40.gif']);
+I = pgmread('car100x100_0001');
+Io = I;
+
+B = [];
+
+done = 0;
+st = 2;
+sz = size(I);
+while (~done),
+   w = max(1,round(0.05*size(I,1)));
+   b = zeros(round(0.5*size(Io)),round(0.5*size(I)));
+   %J = smooth(I,w);
+   %I = J(1:st:size(J,1),1:st:size(J,2));
+   I = reduce(I);
+   sz = [sz;size(I)];
+   b(1:size(I,1),1:size(I,2)) = I;
+   disp(int2str(size(I,1)));
+
+   B = [B,b];
+
+   if (size(I,1) < 8),
+    done = 1;
+   end
+end
diff --git a/SD-VBS/common/toolbox/toolbox_basic/pyramid/startup.m b/SD-VBS/common/toolbox/toolbox_basic/pyramid/startup.m
new file mode 100755
index 0000000..f86f9f4
--- /dev/null
+++ b/SD-VBS/common/toolbox/toolbox_basic/pyramid/startup.m
@@ -0,0 +1,5 @@
+home_dir = '/home/nef0/malik/jshi/jshi/matlab/';
+path([home_dir,'toolbox/io'], path)
+path([home_dir,'toolbox/filter'],path)
+path(path,[home_dir,'vision/vision94/tracking/'])
+clear home_dir
\ No newline at end of file
-- 
cgit v1.2.2