use LAB color space

This commit is contained in:
Askill 2020-10-04 14:51:16 +02:00
parent 11cae0e6f5
commit 39635ded4c
8 changed files with 23 additions and 15 deletions

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@ -16,8 +16,8 @@ class ContourExtractor:
#X = {frame_number: [(contour, (x,y,w,h)), ...], }
extractedContours = dict()
min_area = 500
max_area = 5000
threashold = 20
max_area = 7000
threashold = 13
xDim = 0
yDim = 0
@ -51,8 +51,10 @@ class ContourExtractor:
frame = imutils.resize(frame, width=resizeWidth)
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
gray = cv2.GaussianBlur(gray, (5, 5), 0)
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2LAB)
gray = np.asarray(gray[:,:,1]/2 + gray[:,:,2]/2).astype(np.uint8)
#gray = cv2.GaussianBlur(gray, (5, 5), 0)
# if the first frame is None, initialize it
if firstFrame is None:
@ -60,6 +62,7 @@ class ContourExtractor:
continue
frameDelta = cv2.absdiff(gray, firstFrame)
thresh = cv2.threshold(frameDelta, threashold, 255, cv2.THRESH_BINARY)[1]
# dilate the thresholded image to fill in holes, then find contours
thresh = cv2.dilate(thresh, None, iterations=3)
@ -78,9 +81,12 @@ class ContourExtractor:
#cv2.rectangle(frame, (x, y), (x + w, y + h), (0, 255, 0), 2)
if len(contours) != 0:
extractedContours[frameCount] = contours
if frameCount % (60*30) == 0:
print("Minutes processed: ", frameCount/(60*30))
frameCount += 1
#cv2.imshow( "annotated", frame )
#cv2.imshow( "annotated", thresh )
#cv2.waitKey(10) & 0XFF
self.extractedContours = extractedContours
return extractedContours

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@ -16,19 +16,21 @@ class Exporter:
writer.append_data(np.array(frame))
writer.close()
def exportLayers(self, layers, outputPath):
def exportLayers(self,underlay, layers, outputPath, resizeWidth):
fps = self.fps
writer = imageio.get_writer(outputPath, fps=fps)
i=0
for layer in layers:
data = layer.data
contours = layer.bounds
if len(data) < 10:
continue
for frame in data:
(x, y, w, h) = frame[1]
frame = frame[0]
frame1 = np.zeros(shape=[1080, 1920, 3], dtype=np.uint8)
frame1 = imutils.resize(frame1, width=512)
for frame, contour in zip(data, contours):
(x, y, w, h) = contour
frame = frame
frame1 = underlay
frame1 = imutils.resize(frame1, width=resizeWidth)
frame1 = cv2.cvtColor(frame1, cv2.COLOR_BGR2RGB)
frame1[y:y+frame.shape[0], x:x+frame.shape[1]] = frame
cv2.putText(frame1, str(i), (30,30), cv2.FONT_HERSHEY_SIMPLEX, 1,(255,255,255), 2)
writer.append_data(np.array(frame1))

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@ -47,7 +47,7 @@ class LayerFactory:
print("LayerFactory: Layer knew no bounds")
continue
if frameNumber - layer.lastFrame <= 20:
if frameNumber - layer.lastFrame <= 5:
(x2,y2,w2,h2) = layer.bounds[-1]
if self.contoursOverlay((x-tol,y+h+tol), (x+w+tol,y-tol), (x2,y2+h2), (x2+w2,y2)):
foundLayer = True

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@ -10,10 +10,10 @@ import cv2
def demo():
print("startup")
resizeWidth = 512
maxLayerLength = 5*50*30
maxLayerLength = 1*60*30
start = time.time()
footagePath = os.path.join(os.path.dirname(__file__), "./generate test footage/3.MP4")
footagePath = os.path.join(os.path.dirname(__file__), "./generate test footage/out.mp4")
contours = ContourExtractor().extractContours(footagePath, resizeWidth)
print("Time consumed in working: ", time.time() - start)
layerFactory = LayerFactory(contours)
@ -21,7 +21,7 @@ def demo():
layerFactory.sortLayers()
layerFactory.fillLayers(footagePath)
underlay = cv2.VideoCapture(footagePath).read()[1]
Exporter().exportOverlayed(underlay, layerFactory.layers, os.path.join(os.path.dirname(__file__), "./short.mp4"), resizeWidth)
Exporter().exportLayers(underlay, layerFactory.layers, os.path.join(os.path.dirname(__file__), "./short.mp4"), resizeWidth)
print("Total time: ", time.time() - start)
def init():
print("not needed yet")

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short.mp4

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