Spread the images.

diff --git a/mypapers/drafts/geg2210/assignment-8.html b/mypapers/drafts/geg2210/assignment-8.html
index 79531c0b7d4bbb4a561f1b1435cd32c74821c16e..7e3d51987f13c54a65d7785419bec40fad520d49 100644 (file)
--- a/mypapers/drafts/geg2210/assignment-8.html
+++ b/mypapers/drafts/geg2210/assignment-8.html
@@ -12,23 +12,31 @@
         Photogrammetry</p>
 
     <h1>Image enhancement, filtering and sharpening</h1>
         Photogrammetry</p>
 
     <h1>Image enhancement, filtering and sharpening</h1>

+<img src="jotunheimen-ir-2band.jpeg">
+<img src="jotunheimen-truecolor.jpeg">
+<img src="jotunheimen-std-ir-eq.jpeg">

 
     <p>By Petter Reinholdtsen and Shanette Dallyn, 2005-05-01.</p>
 
 
     <p>By Petter Reinholdtsen and Shanette Dallyn, 2005-05-01.</p>
 

-Logged into jern.uio.no using ssh to run ERDAS Imagine.  Started by
-using 'imagine' on the command line.  The images were loaded from
-/mn/geofag/gggruppe-data/geomatikk/
+<p>This exercuse was performed by logging into jern.uio.no using ssh
+and runnign ERDAS Imagine.  Started by using 'imagine' on the command
+line.  The images were loaded from /mn/geofag/gggruppe-data/geomatikk/

 
 

-Tried to use svalbard/tm87.img, but it only have 5 bands.  Next tried
-jotunheimen/tm.img, which had 7 bands.
+<p>We tried to use svalbard/tm87.img, but it only have 5 bands.  We
+decided to switch, and next tried jotunheimen/tm.img, which had 7
+bands.

 
 

-The pixel values in a given band is only a using a given range of
+<p>The pixel values in a given band is only a using a given range of

 values.  This is because sensor data in a single image rarely extend
 over the entire range of possible values.
 
 values.  This is because sensor data in a single image rarely extend
 over the entire range of possible values.
 

+<p>The peak values of the histograms represent the the spectral
+sensitivity values that occure the most often with in the image band
+being analysed.
+

 <h2>Evaluation of the different bands</h2>
 
 <h2>Evaluation of the different bands</h2>
 

-<h3>band 1, blue (0.45-0.52 um)</h3>
+<h3>band 1, blue (0.45-0.52 micrometer - um)</h3>

 
   Visible light, and will display a broad range of values both over
   land and water.  Reflected from ice, as those are visible white and
 
   Visible light, and will display a broad range of values both over
   land and water.  Reflected from ice, as those are visible white and


@@ -53,6 +61,7 @@ over the entire range of possible values.
   peaks at 0 and 255.  The mean value is 34.3403.
 
 <h3>band 4, near-infraread (0.76-0.90 um)</h3>
   peaks at 0 and 255.  The mean value is 34.3403.
 
 <h3>band 4, near-infraread (0.76-0.90 um)</h3>

+<img align="right" width="20%" src="jotunheimen-band4-hist.jpeg">

 
   Water acts as an absorbing body so in the near infrared spectrum,
   water features will appear dark or black meaning that all near
 
   Water acts as an absorbing body so in the near infrared spectrum,
   water features will appear dark or black meaning that all near


@@ -82,20 +91,22 @@ over the entire range of possible values.
   The mean is 24.04, and there are one wide peak at 130 and a smaller
   peak at 83, in addition to one peak at 0.
 
   The mean is 24.04, and there are one wide peak at 130 and a smaller
   peak at 83, in addition to one peak at 0.
 

-Image enhancement
------------------
+<h3>Image enhancement</h3>

 
 We can get a good contrast stretch by using the histogram
 equalisation.  This will give us the widest range of visible
 separation between features.
 
 
 We can get a good contrast stretch by using the histogram
 equalisation.  This will give us the widest range of visible
 separation between features.
 

-Displaying colour images
-------------------------
+<h3>Displaying colour images</h3>
+
+<p><img width="40%" src="http://home.online.no/~oe-aase/jotunheimen/jotun2000topper.jpg">
+<!-- img src="jotunheimen-map.jpeg" -->

 
 

-<p>Comparing a map we found on the web,
-<img src="http://home.online.no/~oe-aase/jotunheimen/jotun2000topper.jpg">
-and the standard infrared image composition, we can identify some
-features from the colors used:
+<img width="40%" src="jotunheimen-std-ir.jpeg">
+
+<p>Comparing a map we found on the web, and the standard infrared
+image composition, we can identify some features from the colors
+used:</p>

 
 <ul>
 
 
 <ul>
 


@@ -149,11 +160,11 @@ thermal band is actually 4x4 pixels.  Because of this, we tried with a
 
 <p><table align="center">
   <tr><td>
 
 <p><table align="center">
   <tr><td>

-<tr><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td></tr>
-<tr><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td></tr>
-<tr><td>-1</td><td>-1</td><td>24</td><td>-1</td><td>-1</td></tr>
-<tr><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td></tr>
-<tr><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td></tr>
+    <tr><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td></tr>
+    <tr><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td></tr>
+    <tr><td>-1</td><td>-1</td><td>24</td><td>-1</td><td>-1</td></tr>
+    <tr><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td></tr>
+    <tr><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td></tr>

   </table></p>
 
 Next, we tried some different weight:
   </table></p>
 
 Next, we tried some different weight:


@@ -166,7 +177,8 @@ Next, we tried some different weight:
     <tr><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td></tr>
   </table></p>
 
     <tr><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td></tr>
   </table></p>
 

-<p>This one gave more lines showing the borders between the thermal
+<p><img align="right" width="40%"src="jotunheimen-therm-unsharp5x5.jpeg">
+This one gave more lines showing the borders between the thermal

 pixels.
 
 From: shanette Dallyn <shanette_dallyn@yahoo.ca>
 pixels.
 
 From: shanette Dallyn <shanette_dallyn@yahoo.ca>