diff --git a/linux/osmbundler/__init__.py b/linux/osmbundler/__init__.py
index 9f0569e..4f48466 100755
--- a/linux/osmbundler/__init__.py
+++ b/linux/osmbundler/__init__.py
@@ -5,13 +5,13 @@
 from PIL import Image
 from PIL.ExifTags import TAGS
 
-import defaults
+from . import defaults
 
-import matching
-from matching import *
+from . import matching
+from .matching import *
 
-import features
-from features import *
+from . import features
+from .features import *
 
 # a helper function to get list of photos from a directory
 def getPhotosFromDirectory(photoDir):
@@ -86,7 +86,7 @@ def __init__(self):
         logging.info("Working directory created: "+self.workDir)
         
         if not (os.path.isdir(self.photosArg) or os.path.isfile(self.photosArg)):
-            raise Exception, "'%s' is neither directory nor a file name" % self.photosArg
+            raise Exception(f"{self.photosArg} is neither directory nor a file name")
         
         # initialize mathing engine based on command line arguments
         self.initMatchingEngine()
@@ -152,7 +152,7 @@ def preparePhotos(self, *kargs, **kwargs):
         if os.path.isdir(self.photosArg):
             # directory with images
             photos = getPhotosFromDirectory(self.photosArg)
-            if len(photos)<3: raise Exception, "The directory with images should contain at least 3 .jpg photos"
+            if len(photos)<3: raise Exception("The directory with images should contain at least 3 .jpg photos")
             for photo in photos:
                 photoInfo = dict(dirname=self.photosArg, basename=photo)
                 self._preparePhoto(photoInfo)
@@ -208,8 +208,8 @@ def checkCameraInDatabase(self, photoPath):
             ccdWidth = self.getCcdWidthFromDatabase(exifMake, exifModel)
             if ccdWidth==None:
                 while True:
-                    print "Type CCD width in mm for the camera %s, %s. Press Enter to skip the camera." % (exifMake, exifModel)
-                    userInput = raw_input("CCD width in mm: ")
+                    print("Type CCD width in mm for the camera %s, %s. Press Enter to skip the camera." % (exifMake, exifModel))
+                    userInput = input("CCD width in mm: ")
                     # Enter key was pressed
                     if not userInput: return
                     try:
@@ -217,17 +217,17 @@ def checkCameraInDatabase(self, photoPath):
                         if ccdWidth==0: raise ZeroValueException
                         self.dbCursor.execute("insert into cameras(make, model, ccd_width, source) values(?, ?, ?, 2)", (exifMake, exifModel, ccdWidth))
                     except ZeroValueException:
-                        print "\nCCD width can not be equal to zero."
+                        print("\nCCD width can not be equal to zero.")
                     except ValueError:
-                        print "\nIncorrect value for the CCD width. Please enter CCD width in mm."
+                        print("\nIncorrect value for the CCD width. Please enter CCD width in mm.")
                     except:
-                        print "\nCan not insert CCD width to the database."
+                        print("\nCan not insert CCD width to the database.")
                     else:
-                        print "CCD width %s for the cameras %s,%s has been successively inserted to the database" % (ccdWidth, exifMake, exifModel)
+                        print("CCD width %s for the cameras %s,%s has been successively inserted to the database" % (ccdWidth, exifMake, exifModel))
                         return
-	    else:
-		print "Camera is already inserted into the database"
-                return
+        else:
+            print("Camera is already inserted into the database")
+            return
                 
     def _preparePhoto(self, photoInfo):
         photo = photoInfo['basename']
@@ -288,7 +288,7 @@ def _getExif(self, photoHandle):
         exif = {}
         info = photoHandle._getexif()
         if info:
-            for attr, value in info.items():
+            for attr, value in list(info.items()):
                 decodedAttr = TAGS.get(attr, attr)
                 if decodedAttr in exifAttrs: exif[decodedAttr] = value
         if 'FocalLength' in exif: exif['FocalLength'] = float(exif['FocalLength'][0])/float(exif['FocalLength'][1])
@@ -321,7 +321,7 @@ def initMatchingEngine(self):
             matchingEngineClass = getattr(matchingEngine, matchingEngine.className)
             self.matchingEngine = matchingEngineClass(os.path.join(distrPath, "software"))
         except:
-            raise Exception, "Unable initialize matching engine %s" % self.featureExtractor
+            raise Exception("Unable initialize matching engine %s" % self.featureExtractor)
 
     def initFeatureExtractor(self):
         try:
@@ -329,7 +329,7 @@ def initFeatureExtractor(self):
             featureExtractorClass = getattr(featureExtractor, featureExtractor.className)
             self.featureExtractor = featureExtractorClass(os.path.join(distrPath, "software"))
         except:
-            raise Exception, "Unable initialize feature extractor %s" % self.featureExtractor
+            raise Exception("Unable initialize feature extractor %s" % self.featureExtractor)
 
     def extractFeatures(self, photo):
         # let self.featureExtractor do its job
@@ -368,12 +368,14 @@ def printHelpExit(self):
     
     def openResult(self):
         if sys.platform == "win32": subprocess.call(["explorer", self.workDir])
-	if sys.platform == "linux2": subprocess.call(["xdg-open", self.workDir])
-        else: print "Thanks"
+    if sys.platform == "linux2":
+        subprocess.call(["xdg-open", self.workDir])
+    else:
+        print("Thanks")
     
     def printHelp(self):
         helpFile = open(os.path.join(distrPath, "osmbundler/help.txt"), "r")
-        print helpFile.read()
+        print(helpFile.read())
         helpFile.close()
 
     # a helper function to get CCD width from sqlite database
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diff --git a/linux/osmbundler/features/__pycache__/siftlowe.cpython-310.pyc b/linux/osmbundler/features/__pycache__/siftlowe.cpython-310.pyc
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diff --git a/linux/osmbundler/features/__pycache__/siftvlfeat.cpython-310.pyc b/linux/osmbundler/features/__pycache__/siftvlfeat.cpython-310.pyc
new file mode 100644
index 0000000..21fe086
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diff --git a/linux/osmbundler/features/__pycache__/siftvlfeat.cpython-38.pyc b/linux/osmbundler/features/__pycache__/siftvlfeat.cpython-38.pyc
new file mode 100644
index 0000000..90bb87c
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diff --git a/linux/osmbundler/features/sift.py b/linux/osmbundler/features/sift.py
index a5f5edb..f0851c2 100755
--- a/linux/osmbundler/features/sift.py
+++ b/linux/osmbundler/features/sift.py
@@ -1,6 +1,6 @@
 import sys, os, logging
 
-from extractor import FeatureExtractor
+from .extractor import FeatureExtractor
 
 class Sift(FeatureExtractor):
     
diff --git a/linux/osmbundler/features/siftlowe.py b/linux/osmbundler/features/siftlowe.py
index 04e13fb..86e55ce 100755
--- a/linux/osmbundler/features/siftlowe.py
+++ b/linux/osmbundler/features/siftlowe.py
@@ -1,6 +1,6 @@
 import os, subprocess, gzip
 
-from sift import Sift
+from .sift import Sift
 
 className = "LoweSift"
 class LoweSift(Sift):
@@ -19,7 +19,7 @@ def extract(self, photo, photoInfo):
         siftTextFile.close()
         # gzip SIFT file and remove it
         siftTextFile = open("%s.key" % photo, "r")
-        siftGzipFile = gzip.open("%s.key.gz" % photo, "wb")
+        siftGzipFile = gzip.open("%s.key.gz" % photo, "wt")
         siftGzipFile.writelines(siftTextFile)
         siftGzipFile.close()
         siftTextFile.close()
diff --git a/linux/osmbundler/features/siftvlfeat.py b/linux/osmbundler/features/siftvlfeat.py
index c967772..6632f0c 100755
--- a/linux/osmbundler/features/siftvlfeat.py
+++ b/linux/osmbundler/features/siftvlfeat.py
@@ -1,6 +1,6 @@
 import os, subprocess, gzip, logging
 
-from sift import Sift
+from .sift import Sift
 
 className = "VlfeatSift"
 class VlfeatSift(Sift):
@@ -16,7 +16,7 @@ def extract(self, photo, photoInfo):
         subprocess.call([self.executable, "%s.jpg.pgm" % photo, "-o", "%s.key" % photo])
         # perform conversion to David Lowe's format
         vlfeatTextFile = open("%s.key" % photo, "r")
-        loweGzipFile = gzip.open("%s.key.gz" % photo, "wb")
+        loweGzipFile = gzip.open("%s.key.gz" % photo, "wt")
         featureStrings = vlfeatTextFile.readlines()
         numFeatures = len(featureStrings)
         # write header
diff --git a/linux/osmbundler/matching/__pycache__/__init__.cpython-310.pyc b/linux/osmbundler/matching/__pycache__/__init__.cpython-310.pyc
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diff --git a/linux/osmbundler/matching/__pycache__/manual.cpython-310.pyc b/linux/osmbundler/matching/__pycache__/manual.cpython-310.pyc
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diff --git a/linux/osmbundler/matching/__pycache__/manual.cpython-38.pyc b/linux/osmbundler/matching/__pycache__/manual.cpython-38.pyc
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diff --git a/linux/osmbundler/matching/bundler.py b/linux/osmbundler/matching/bundler.py
index 298b830..078b1f1 100755
--- a/linux/osmbundler/matching/bundler.py
+++ b/linux/osmbundler/matching/bundler.py
@@ -1,6 +1,6 @@
 import sys,os,subprocess,logging
 
-from engine import MatchingEngine
+from .engine import MatchingEngine
 
 className = "BundlerMatching"
 class BundlerMatching(MatchingEngine):
diff --git a/linux/osmbundler/matching/manual.py b/linux/osmbundler/matching/manual.py
index 6084d2c..d884f84 100755
--- a/linux/osmbundler/matching/manual.py
+++ b/linux/osmbundler/matching/manual.py
@@ -1,4 +1,4 @@
-from engine import MatchingEngine
+from .engine import MatchingEngine
 
 className = "ManualMatching"
 class ManualMatching(MatchingEngine):
diff --git a/linux/osmcmvs/__init__.py b/linux/osmcmvs/__init__.py
index f86184f..9c5aa60 100755
--- a/linux/osmcmvs/__init__.py
+++ b/linux/osmcmvs/__init__.py
@@ -47,7 +47,7 @@ def __init__(self):
         logging.info("Working directory created: "+self.workDir)
         
         if not (os.path.isdir(self.bundleOutArg) or os.path.isfile(self.bundleOutArg)):
-            raise Exception, "'%s' is neither directory nor a file name" % self.bundleOutArg
+            raise Exception("'%s' is neither directory nor a file name" % self.bundleOutArg)
 
     def parseCommandLineFlags(self):
         try:
@@ -77,21 +77,21 @@ def doBundle2PMVS(self):
         os.mkdir("pmvs/models")
         
         #$BASE_PATH/bin32/Bundle2PMVS.exe list.txt  bundle/bundle.out
-        print "Running Bundle2PMVS to generate geometry and converted camera file"
+        print("Running Bundle2PMVS to generate geometry and converted camera file")
         subprocess.call([bundler2PmvsExecutable, "list.txt", "bundle/bundle.out"])
 		
         # Apply radial undistortion to the images
-        print "Running RadialUndistort to undistort input images"
+        print("Running RadialUndistort to undistort input images")
         subprocess.call([RadialUndistordExecutable, "list.txt", "bundle/bundle.out", "pmvs"])
 		
-        print "Running Bundle2Vis to generate vis.dat"
+        print("Running Bundle2Vis to generate vis.dat")
         subprocess.call([Bundle2VisExecutable, "pmvs/bundle.rd.out", "pmvs/vis.dat"])
 
         os.chdir(os.path.join(self.workDir,"pmvs"))
         #Rename all the files to the correct name
         undistortTextFile = open("list.rd.txt", "r")
         imagesStrings = undistortTextFile.readlines()
-        print "Move files in the correct directory"
+        print("Move files in the correct directory")
         cpt = 0
         for imageString in imagesStrings:
           image = imageString.split(".")
@@ -123,16 +123,16 @@ def doCMVS(self):
       #  for file in files:
       #    if "option-" in file:
       #      subprocess.call([pmvsExecutable, "./", file])
-	print "Finished! See the results in the '%s' directory" % self.workDir
+	print("Finished! See the results in the '%s' directory" % self.workDir)
 	if sys.platform == "win32": subprocess.call(["explorer", self.workDir])
 	if sys.platform == "linux2": subprocess.call(["xdg-open", self.workDir])
-        else: print "Thanks"
+        else: print("Thanks")
         
     def doPMVS(self, path, optionFile):
         os.chdir(os.path.join(path,"pmvs"))
-        print "Run PMVS2 : %s " % pmvsExecutable
+        print("Run PMVS2 : %s " % pmvsExecutable)
         subprocess.call([pmvsExecutable, "./", optionFile])
-	print "Finished! See the results in the '%s' directory" % self.workDir
+	print("Finished! See the results in the '%s' directory" % self.workDir)
     
     def printHelpExit(self):
         self.printHelp()
@@ -140,11 +140,11 @@ def printHelpExit(self):
     
     def openResult(self):
         if sys.platform == "win32": subprocess.call(["explorer", self.workDir])
-        else: print "See the results in the '%s' directory" % self.workDir
+        else: print("See the results in the '%s' directory" % self.workDir)
     
     def printHelp(self):
-        print "Error"
+        print("Error")
         helpFile = open(os.path.join(distrPath, "osmcmvs/help.txt"), "r")
-        print helpFile.read()
+        print(helpFile.read())
         helpFile.close()
 
diff --git a/linux/osmpmvs/__init__.py b/linux/osmpmvs/__init__.py
index 02177d8..7de92b2 100755
--- a/linux/osmpmvs/__init__.py
+++ b/linux/osmpmvs/__init__.py
@@ -43,7 +43,7 @@ def __init__(self):
         logging.info("Working directory created: "+self.workDir)
         
         if not (os.path.isdir(self.bundleOutArg) or os.path.isfile(self.bundleOutArg)):
-            raise Exception, "'%s' is neither directory nor a file name" % self.bundleOutArg
+            raise Exception("'%s' is neither directory nor a file name" % self.bundleOutArg)
 
     def parseCommandLineFlags(self):
         try:
@@ -71,21 +71,21 @@ def doBundle2PMVS(self):
         os.mkdir("pmvs/models")
         
         #$BASE_PATH/bin32/Bundle2PMVS.exe list.txt  bundle/bundle.out
-        print "Running Bundle2PMVS to generate geometry and converted camera file"
+        print("Running Bundle2PMVS to generate geometry and converted camera file")
         subprocess.call([bundler2PmvsExecutable, "list.txt", "bundle/bundle.out"])
 		
         # Apply radial undistortion to the images
-        print "Running RadialUndistort to undistort input images"
+        print("Running RadialUndistort to undistort input images")
         subprocess.call([RadialUndistordExecutable, "list.txt", "bundle/bundle.out", "pmvs"])
 		
-        print "Running Bundle2Vis to generate vis.dat"
+        print("Running Bundle2Vis to generate vis.dat")
         subprocess.call([Bundle2VisExecutable, "pmvs/bundle.rd.out", "pmvs/vis.dat"])
 
         os.chdir(os.path.join(self.workDir,"pmvs"))
         #Rename all the files to the correct name
         undistortTextFile = open("list.rd.txt", "r")
         imagesStrings = undistortTextFile.readlines()
-        print "Move files in the correct directory"
+        print("Move files in the correct directory")
         cpt = 0
         for imageString in imagesStrings:
           image = imageString.split(".")
@@ -102,12 +102,12 @@ def doBundle2PMVS(self):
         logging.info("Finished!")
         
     def doPMVS(self):
-        print "Run PMVS2 : %s " % pmvsExecutable
+        print("Run PMVS2 : %s " % pmvsExecutable)
         subprocess.call([pmvsExecutable, "./", "pmvs_options.txt"])
-	print "Finished! See the results in the '%s' directory" % self.workDir
+	print("Finished! See the results in the '%s' directory" % self.workDir)
 	if sys.platform == "win32": subprocess.call(["explorer", self.workDir])
 	if sys.platform == "linux2": subprocess.call(["xdg-open", self.workDir])
-        else: print "Thanks"
+        else: print("Thanks")
 
     def printHelpExit(self):
         self.printHelp()
@@ -115,11 +115,11 @@ def printHelpExit(self):
     
     def openResult(self):
         if sys.platform == "win32": subprocess.call(["explorer", self.workDir])
-        else: print "See the results in the '%s' directory" % self.workDir
+        else: print("See the results in the '%s' directory" % self.workDir)
     
     def printHelp(self):
-        print "Error"
+        print("Error")
         helpFile = open(os.path.join(distrPath, "osmpmvs/help.txt"), "r")
-        print helpFile.read()
+        print(helpFile.read())
         helpFile.close()
 
diff --git a/ppt_gui_start b/ppt_gui_start
index cfdcfb6..e7b4bc6 100755
--- a/ppt_gui_start
+++ b/ppt_gui_start
@@ -1,4 +1,4 @@
 #!/bin/sh
-cd /home/steve/Desktop/3D/osm-bundler/linux/
-export LD_LIBRARY_PATH="/home/steve/Desktop/3D/osm-bundler/linux/software/bundler/bin"
+cd /home/casper/Documents/rendering/photogrammetry/linux/
+export LD_LIBRARY_PATH="/home/casper/Documents/rendering/photogrammetry/linux/software/bundler/bin"
 python ./ppt_gui.py
diff --git a/to_jpg.py b/to_jpg.py
new file mode 100644
index 0000000..ccaddb0
--- /dev/null
+++ b/to_jpg.py
@@ -0,0 +1,13 @@
+from PIL import Image 
+import os 
+PATH = "/home/casper/Documents/rendering/DATASET/1"
+
+files = os.listdir(PATH) # list of files in directory
+
+for file in files:  
+
+    if file.endswith('.png'): # check if file is png
+        file_path = f"{PATH}/{file}"
+
+        im = Image.open(file_path).convert("RGB") # open file as an image object                
+        im.save(f'{PATH}/jpgs/{file[:-4]}.jpg',quality=95, optimize=True)        
\ No newline at end of file