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Questions tagged [threshold]
715 questions
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votes
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ANDROID autoCompleteView suggestions
I want to show suggestions not only as starting character but also a containing character... means 's' suggestions should be like tags,pas,also, and so on.
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1 answer
Matlab - Dynamic Thresholding
I am trying to make a dynamic thresholding, but It is appearing some errors. I am trying to adapt from this code: http://www.inf.ed.ac.uk/teaching/courses/ivr/lectures/ivr5hand.pdf
function [Output ] = dinamicthresh()
[filename,pathname] =…
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1 answer
Need to count objects on a white background in Python, shadows cause trouble
This question is kind of a follow-up to my 2 previous auestions: Python Image tutorial works, other images behaves differently (showing images with Pylab) and Detect objects on a white background in Python .
What I am trying to achieve is being able…
E. V. d. B.
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2 answers
plotting from histogram threshold value
% OTSU THRESHOLDING
% X=imread('cameraman.tif')
% a=ones(256,1)*[1:256];
% c2=double(X).*(a/2+50)+(1-double(X)).*a/2;
% c3=uint8(255*mat2gray(c2));
% IDX = otsu(c3,2);
%----------------------------------------------------------
%
% function…
Fleron-X
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How to threshold intensity values for an image in R?
I have written a function in R which reads a text file and generates a color map using the coordinate information and intensity value for each co-ordiante within that file.
Now, I want to apply a specific threshold value for the intensities such…
novicegeek
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2 answers
NoneType error .convert appear
i would like to do some program by capture image from webcam, then cropped it. after crop, i do some image processing and from the process it will run my robots. Here the full program:
import cv2
from cv2 import *
import numpy as np
import…
timekeeper
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1 answer
Various Thresholding Methods Implementation in Python Opecv2
I want to compare the performance of various thresholding methods. Literally, I found various thresholding methods are
Histogram shape based methods (Ex:- Otsu Method)
Clustering based methods
Entropy based methods
Attribute similarity methods…
Thamizh
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1 answer
Threshoding image between certain range
How to Threshold image between certain range?
i have done this but it doesn't work.
for (int i=0;i(j,i));
if (k>6 && k<10)
…
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votes
2 answers
T-SQL Calculate threshold from a recordset
I have the following result set :
ContentSendId ContentId NewsletterId Position IsConditionMatch SendDate NumberOfSends IsSendValid
------------- ----------- ------------ ----------- ----------------…
Murtaza Mandvi
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How to draw a Multi Coloured Line Chart in FLutter
In Flutter, is there any possibility to change the color of the Line Chart or Below Line Chart based on some thresholds?
I tried using the Flutter Package fl_chart: ^0.63.0, but unfortunately the color of chart is sold and cant have multiple colors…
Rebellious
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votes
1 answer
Darking image lines using OpenCV
How can the gridlines in the image below be blackened using OpenCV so that they are more prominent? I tried thresholding but it washes out the gridlines.
user840
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1 answer
Python: find the number of black pixels in images
I have a video file for image processing. In the video I've captured samples in exact times like figure, thresholded by using OpenCV. Now I want to find differences in the number of black pixels in order to reach the graphic of time vs. difference.…
Çağlar Çepni
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How can I code a moving circle according to gravitational acceleration?
New programmer here - Used PsychoPy to generate a circle moving across the screen. Super basic, but I want to simulate different realistic acceleration profiles.
Basically I want one of the profiles to be the circle moving at the acceleration of…
Steve Beukema
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1 answer
Image Thresholding
I am currently exploring OpenCV and have come across the thresholding function. I have implemented a few basic thresholding programs and I understand the concept of it. However, I would like to know what is the purpose of it. I only know it's used…
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2 answers
How average page load time differs in Google Analytic's and New Relic
In one of my website I'm tracking with Google Analytic's and New Relic ?
But Google Analytic's is showing 12 sec and New Relic is showing 9 Sec.
may I know why this difference occurs usually ?
Does it by threshold which is not correct in New Relic…
sasibhushan M
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