Top "Threshold" questions

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Efficient thresholding filter of an array with numpy

I need to filter an array to remove the elements that are lower than a certain threshold. My current code …

python filter numpy threshold
How to use the OTSU Threshold in opencv?

I was using a fixed threshold but turns out that it's not so good for me. Then, someone told me …

opencv threshold
How to define a threshold value to detect only green colour objects in an image :Opencv

I just want to detect only green objects from an image which captured in natural environment.How to define it? …

python opencv image-processing threshold
Sharepoint: The view cannot be displayed because the number of lookup and workflow columns it contains exceeds the threshold (8)

I have following problem with my Sharepoint website. (The view cannot be displayed because the number of lookup and workflow …

sharepoint threshold
Difference between adaptive thresholding and normal thresholding in opencv

I have this gray video stream: The histogram of this image: The thresholded image by : threshold( image, image, 150, 255, CV_THRESH_…

c++ image-processing opencv threshold
how to calculate roc curves?

I write a classifier (Gaussian Mixture Model) to classify five human actions. For every observation the classifier compute the posterior …

matlab classification threshold false-positive roc
Python OpenCV - Find black areas in a binary image

There is any method/function in the python wrapper of Opencv that finds black areas in a binary image? (like …

python opencv colors detection threshold
OpenCV Binary Image Mask for Image Analysis in C++

I'm trying to analyse some images which have a lot of noise around the outside of the image, but a …

c++ opencv image-processing mask threshold
Adaptive threshold of blurry image

I have a fairly blurry 432x432 image of a Sudoku puzzle that doesn't adaptively threshold well (take the mean over …

image-processing opencv threshold
openCV AdaptiveThreshold versus Otsu Threshold. ROI

I'm tried to use both of the methods but it seems like Adaptive threshold seems to be giving a better …

c++ opencv threshold roi adaptive-threshold