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
---
 SD-VBS/common/toolbox/toolbox_basic/io/readppm.m | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100755 SD-VBS/common/toolbox/toolbox_basic/io/readppm.m

(limited to 'SD-VBS/common/toolbox/toolbox_basic/io/readppm.m')

diff --git a/SD-VBS/common/toolbox/toolbox_basic/io/readppm.m b/SD-VBS/common/toolbox/toolbox_basic/io/readppm.m
new file mode 100755
index 0000000..b9dd566
--- /dev/null
+++ b/SD-VBS/common/toolbox/toolbox_basic/io/readppm.m
@@ -0,0 +1,23 @@
+function [I,r, g, b] = readppm(name)
+
+  fid = fopen(name, 'r');
+  fscanf(fid, 'P6\n');
+  cmt = '#';
+  while findstr(cmt, '#'),
+    cmt = fgets(fid);
+    if length(findstr(cmt, '#')) ~= 1
+      YX = sscanf(cmt, '%d %d');
+      y = YX(1); x = YX(2);
+    end
+  end
+  fgets(fid); 
+  packed = fread(fid,[3*y,x],'uint8')';
+  r = packed(:,1:3:3*y);
+  g = packed(:,2:3:3*y);
+  b = packed(:,3:3:3*y);
+  fclose(fid);
+
+ I(:,:,1) = r;
+ I(:,:,2) = g;
+ I(:,:,3) = b;
+ I  =  I/255;
-- 
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