Morph-M

Morph-M Python - Python Active Windows » History » Revision 2

Revision 1 (Serge Koudoro, 10/23/2009 04:19 PM) → Revision 2/4 (Serge Koudoro, 10/23/2009 04:22 PM)

h1. Morph-M Python - Python Active Windows 

 h2{color:#8B0000;background:#ddd}. Introduction 

 *What Active windows does ?*   

 Sometimes, you do not need to work on the whole image. Active window is here to help you ! Define 1,2,3 or more active window on your image, then get all these pixel and work with them.  

 Example with images are better than words, so try all example.    

 h2{color:#8B0000;background:#ddd}. Example: Construct 3D volume with image stack  

 h2{color:#8B0000;background:#ddd}. Example : 1: Build 1 image with some part of 2 different images 

 | !{width:400px}http://morphm.ensmp.fr/attachments/84/active_windows_1.PNG! |<pre><code class="ruby"> 
 import morphee as mp 

 def combineImage(ImIn1,ImIn2): 
         #we activate the same window on each image (Red windows) 
         ImIn1.setActiveWindow(201,14,1,30,30,1) 
         ImIn2.setActiveWindow(201,14,1,30,30,1) 

         #copy only active window 
         mp.ImCopy(ImIn1,ImIn2) 

         # remove active window so all image is actived 
         ImIn1.resetActiveWindow() 
         ImIn2.resetActiveWindow() 

         #Now, we activate the same window on each image(Blue windows) 
         ImIn1.setActiveWindow(45,73,0,50,40,1) 
         ImIn2.setActiveWindow(45,73,0,50,40,1) 

         #copy only active window 
         mp.ImCopy(ImIn1,ImIn2) 

         #remove active window so all image is actived 
         ImIn1.resetActiveWindow() 
         ImIn2.resetActiveWindow() 

         return ImIn2 

 if __name__=='__main__': 
     #Read im1 and im2. 
     im1=mp.fileRead(images_dir+ "\\Gray\\tools.png") 
     im2=mp.fileRead(images_dir+ "\\Gray\\tw.png") 

     final_image = combineImage(im1,im2) 

     #write result 
     mp.fileWrite(final_image,"D:\\final_image.png") 
 </code></pre>| 

 h2{color:#8B0000;background:#ddd}. Example : 2: Mathematical Morphology operation on Active window 

 | !{width:400px}http://morphm.ensmp.fr/attachments/85/active_windows_2.PNG! |<pre><code class="ruby"> 
 import morphee as mp 

 def ErodeImagePart(im): 
         imEro = mp.getSame(im) 

         #create structuring element 
         nl = mp.NeighborList.neighborsSquare2D 

         #we activate the same window on each image (Red box) 
         im.setActiveWindow(1,1,1,66,66,1) 
         imEro.setActiveWindow(1,1,1,66,66,1) 
        
         #Erode active window 
         mp.ImErode( im, mp.HomotheticSE(nl,10), imEro) 
        
         # remove active window so all image is actived 
         im.resetActiveWindow() 
         imEro.resetActiveWindow() 

         return imEro 

 if __name__=='__main__': 
     #Read image 
     im=mp.fileRead(images_dir+ "\\Bin\\balls.png") 

     final_image = ErodeImagePart(im) 

     #write result 
     mp.fileWrite(final_image,"D:\\final_image.png") 
 </code></pre>| 

 h2{color:#8B0000;background:#ddd}. Example : 3: Set image Boundary with Active window 

 | !{width:400px}http://morphm.ensmp.fr/attachments/86/active_windows_3.png! |<pre><code class="ruby"> 
 import morphee as mp 

 def set_boundary(im, depth, value = 255): 
        
         for i in [(0,0,0),(im.wxSize-depth, 0, 0)]: 
                 im.setActiveWindow(i[0], i[1], i[2], depth,  
                                           im.wySize,im.wzSize) 
                 mp.ImSetConstant(im, value) 
                 im.resetActiveWindow() 
         for i in [(0, 0, 0),(0, im.wySize-depth, 0)]: 
                 im.setActiveWindow(i[0], i[1], i[2], im.wxSize,  
                                                    depth,im.wzSize) 
                 mp.ImSetConstant(im, value) 
                 im.resetActiveWindow() 
         if im.getZSize() == 3: 
                 for i in [(0, 0, 0),(0, 0, im3d.wzSize-depth)]: 
                         im.setActiveWindow(i[0], i[1], i[2], im.wxSize, 
                                                           im.wySize,depth) 
                         mp.ImSetConstant(im, value) 
                         im.resetActiveWindow() 
         return im 

 if __name__=='__main__': 
     #Read image 
     im=mp.fileRead(images_dir+ "\\Gray\\tw.png") 

     final_image = set_boundary(im, 50, 0): 

     #write result 
     mp.fileWrite(final_image,"D:\\final_image.png") 
 </code></pre>|