def subtract(self, thres_chan):
cv.RunningAvg(thres_chan, self.accumulator, self.adaptation_rate)
cv.CvtScale(thres_chan, self.green32_img)
cv.Sub(self.green32_img, self.accumulator, self.difference_img)
cv.Threshold(self.difference_img, self.thresholded_img, self.threshold, 1, cv.CV_THRESH_BINARY)
cv.Dilate(self.thresholded_img, self.thresholded_img, iterations=1)
blob.remove_large_blobs(self.thresholded_img, max_area = self.max_area)
return self.thresholded_img
def subtract(self, thres_chan):
cv.RunningAvg(thres_chan, self.accumulator, self.adaptation_rate)
cv.CvtScale(thres_chan, self.green32_img)
cv.Sub(self.green32_img, self.accumulator, self.difference_img)
cv.Threshold(self.difference_img, self.thresholded_img, self.threshold,
1, cv.CV_THRESH_BINARY)
cv.Dilate(self.thresholded_img, self.thresholded_img, iterations=1)
blob.remove_large_blobs(self.thresholded_img, max_area=self.max_area)
return self.thresholded_img
def threshold(self, thres_low, thres_high, thres_chan):
result_val = 1 #Change result_val to 255 if need to view image
cv.Threshold(thres_chan, self.thresholded_low, thres_low, result_val, cv.CV_THRESH_BINARY)
cv.Dilate(self.thresholded_low, self.thresholded_low) #thresholded_low thresholded image using threshold for dark regions
blob.remove_large_blobs(self.thresholded_low, self.max_area)
cv.Threshold(thres_chan, self.thresholded_high, thres_high, result_val, cv.CV_THRESH_BINARY)
cv.Dilate(self.thresholded_high, self.thresholded_high) #thresholded_high thresholded image using threshold for bright regions
blob.remove_large_blobs(self.thresholded_high, self.max_area)#, show=True)
cv.Or(self.thresholded_low, self.thresholded_high, self.thresholded_combined)
return self.thresholded_combined
def threshold(self, thres_low, thres_high, thres_chan):
result_val = 1 #Change result_val to 255 if need to view image
cv.Threshold(thres_chan, self.thresholded_low, thres_low, result_val,
cv.CV_THRESH_BINARY)
cv.Dilate(
self.thresholded_low, self.thresholded_low
) #thresholded_low thresholded image using threshold for dark regions
blob.remove_large_blobs(self.thresholded_low, self.max_area)
cv.Threshold(thres_chan, self.thresholded_high, thres_high, result_val,
cv.CV_THRESH_BINARY)
cv.Dilate(
self.thresholded_high, self.thresholded_high
) #thresholded_high thresholded image using threshold for bright regions
blob.remove_large_blobs(self.thresholded_high,
self.max_area) #, show=True)
cv.Or(self.thresholded_low, self.thresholded_high,
self.thresholded_combined)
return self.thresholded_combined