Update gitignore, correct minor error in diffBetween2ImagesAlgo

Author: SpicyPaper

.gitignore

@@ -123,3 +123,5 @@ dmypy.json
 *.mid
 \.vscode/
 *.mp3
+
+*.png

sources/Generator.py

@@ -284,6 +284,7 @@ def diffBetween2Images(self, factor, th = 127, maxNote = 64):
             else:
                 if imagesCounter % everyNImages == 0:
 
+                    self.__diffBetween2Images_display(previousFrame, frame, th, imagesCounterTot)
                     previousNbOfDiff, note = self.__diffBetween2Images(maxNote, factor, previousNbOfDiff, previousFrame, frame, th)
 
                     notesCounter += 1
@@ -300,6 +301,7 @@ def diffBetween2Images(self, factor, th = 127, maxNote = 64):
                         if(cap.isOpened()):
                             self.__resetTrackParams(self.num, self.instru, self.blocDuration)
                             ret, frame = cap.read()
+                            imagesCounterTot += 1
                             imagesCounter += 1
 
                             previousNbOfDiff, note = self.__diffBetween2Images(maxNote, factor, previousNbOfDiff, previousFrame, frame, th)