.

Analyzer.py

@@ -1,3 +1,44 @@
+from imutils.video import VideoStream
+import argparse
+import datetime
+import imutils
+import time
+import cv2
+import os
+import traceback
+import _thread
+import imageio
+import numpy as np
+import matplotlib.pyplot as plt
+
 class Analyzer:
-    def __init__(self):
-        print("Analyzer constructed")
+    def __init__(self, videoPath):
+        print("Analyzer constructed")
+        data = self.readIntoMem(videoPath)
+
+        vs = cv2.VideoCapture(videoPath)
+        threashold = 13
+        res, image = vs.read()
+        firstFrame = None
+        i = 0
+        diff = []
+        while res:
+            res, frame = vs.read()
+            if not res:
+                break
+            frame = imutils.resize(frame, width=500)
+            gray = cv2.cvtColor(frame, cv2.COLOR_BGR2LAB)
+            if firstFrame is None:
+                firstFrame = gray
+                continue
+            frameDelta = cv2.absdiff(gray, firstFrame)
+            thresh = cv2.threshold(frameDelta, threashold, 255, cv2.THRESH_BINARY)[1]
+            diff.append(np.count_nonzero(thresh))
+            i+=1
+            if i % (60*30) == 0:
+                print("Minutes processed: ", i/(60*30))
+                #print(diff)
+
+        plt.plot(diff)
+        plt.ylabel('some numbers')
+        plt.show()

ContourExctractor.py

@@ -5,7 +5,6 @@ import imutils
 import time
 import cv2
 import os
-import numpy as np
 import traceback
 import _thread
 import imageio
@@ -16,7 +15,7 @@ class ContourExtractor:
     #X = {frame_number: [(contour, (x,y,w,h)), ...], }
     extractedContours = dict()
     min_area = 500
-    max_area = 7000
+    max_area = 28000
     threashold = 13
     xDim = 0
     yDim = 0
@@ -33,7 +32,7 @@ class ContourExtractor:
         threashold = self.threashold
 
         # initialize the first frame in the video stream
-        vs = cv2.VideoCapture(videoPath)
+        vs = VideoCapture(filename)
 
         res, image = vs.read()
         self.xDim = image.shape[1]
@@ -53,10 +52,10 @@ class ContourExtractor:
 
             frame = imutils.resize(frame, width=resizeWidth)
             
-            gray = cv2.cvtColor(frame, cv2.COLOR_BGR2LAB)
-            gray = np.asarray(gray[:,:,1]/2 + gray[:,:,2]/2).astype(np.uint8)
+            gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
+            #gray = np.asarray(gray[:,:,1]/3 + gray[:,:,2]/3 + gray[:,:,0]/6).astype(np.uint8)
             
-            #gray = cv2.GaussianBlur(gray, (5, 5), 0)
+            gray = cv2.GaussianBlur(gray, (5, 5), 0)
 
             # if the first frame is None, initialize it
             if firstFrame is None:

Layer.py

@@ -28,7 +28,7 @@ class Layer:
         self.length = len(self.bounds)
         return self.length
     
-    def fill(self, inputPath):
+    def fill(self, inputPath, resizeWidth):
         '''reads in the contour data, needed for export'''
         
         cap = cv2.VideoCapture(inputPath) 
@@ -39,7 +39,7 @@ class Layer:
             ret, frame = cap.read() 
             
             if ret:
-                frame = imutils.resize(frame, width=512)
+                frame = imutils.resize(frame, width=resizeWidth)
                 (x, y, w, h) = self.bounds[i]
                 self.data[i] = frame[y:y+h, x:x+w]
             i+=1

LayerFactory.py

@@ -10,11 +10,28 @@ class LayerFactory:
         if data is not None:
             self.extractLayers(data)
 
-    def freeData(self, maxLayerLength):
+    def removeStaticLayers(self):
+        '''Removes Layers with little to no movement'''
+        layers = []
+        for i, layer in enumerate(self.layers):
+            checks = 0
+            if abs(self.layers[i].bounds[0][0] - self.layers[i].bounds[-1][0]) < 5:
+                checks += 1
+            if abs(self.layers[i].bounds[0][1] - self.layers[i].bounds[-1][1]) < 5:
+                checks += 1
+            if checks <= 2:
+                layers.append(layer)
+        self.layers = layers
+
+
+    def freeData(self, maxLayerLength, minLayerLength):
         self.data.clear()
-        #for i in range(len(self.layers) - 2):
-            #if self.layers[i].getLength() > maxLayerLength:
-                #del self.layers[i] 
+        layers = []
+        for l in self.layers:
+            if l.getLength() < maxLayerLength and l.getLength() > minLayerLength:
+                layers.append(l) 
+        self.layers = layers
+        self.removeStaticLayers()
 
 
     def extractLayers(self, data = None):
@@ -55,20 +72,18 @@ class LayerFactory:
                     self.layers.append(Layer(frameNumber, (x,y,w,h)))
 
     def contoursOverlay(self, l1, r1, l2, r2): 
-      
         # If one rectangle is on left side of other 
         if(l1[0] >= r2[0] or l2[0] >= r1[0]): 
             return False
-    
         # If one rectangle is above other 
         if(l1[1] <= r2[1] or l2[1] <= r1[1]): 
             return False
     
         return True
 
-    def fillLayers(self, footagePath):
+    def fillLayers(self, footagePath, resizeWidth):
         for i in range(len(self.layers)):
-            self.layers[i].fill(footagePath)
+            self.layers[i].fill(footagePath, resizeWidth)
 
     def sortLayers(self):
         # straight bubble

README.md

@@ -1 +1,4 @@
 time compression
+
+
+Time consumed reading video:  369.0188868045807s     3.06GB 26min 1080p downscaled 500p 30fps

main.py

@@ -3,6 +3,7 @@ import time
 from ContourExctractor import ContourExtractor
 from Exporter import Exporter
 from LayerFactory import LayerFactory
+from Analyzer import Analyzer
 import cv2
 #TODO
 #   finden von relevanten Stellen anhand von zu findenen metriken für vergleichsbilder
@@ -11,18 +12,21 @@ def demo():
     print("startup")
     resizeWidth = 512
     maxLayerLength = 1*60*30
+    minLayerLength = 3
     start = time.time()
 
     footagePath = os.path.join(os.path.dirname(__file__), "./generate test footage/3.mp4")
+    #analyzer = Analyzer(footagePath)
+    print("Time consumed reading video: ", time.time() - start)
     contours = ContourExtractor().extractContours(footagePath, resizeWidth)
     print("Time consumed in working: ", time.time() - start)
     layerFactory = LayerFactory(contours)
     print("freeing Data", time.time() - start)
-    layerFactory.freeData(maxLayerLength)
+    layerFactory.freeData(maxLayerLength, minLayerLength)
     print("sort Layers")
     layerFactory.sortLayers()
     print("fill Layers")
-    layerFactory.fillLayers(footagePath)
+    layerFactory.fillLayers(footagePath, resizeWidth)
     underlay = cv2.VideoCapture(footagePath).read()[1]
     Exporter().exportOverlayed(underlay, layerFactory.layers, os.path.join(os.path.dirname(__file__), "./short.mp4"), resizeWidth)
     print("Total time: ", time.time() - start)