Most voted "computer-vision" questions
Computer Vision is a sub-area of Computer Science that uses digital image processing algorithms to solve various problems.
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21
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answer2331
viewsWhat is it and what is PCA, LDA, ICA for?
I’m conducting a survey on Facial Detection and Recognition for future implementation, my research has reached the algorithm of Viola Jones and reading more I came to the concepts of: PCA -…
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14
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answer2902
viewsHow does google’s "Search for similar image" feature work?
I need to create a manager for a very large image bank, where in this manager besides the search for title and description, there should be a resource that searches for visually similar images. For…
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answer1704
viewsWhat are the terms "Cascade" and "Classifier" in relation to computer vision?
Always when I read something about Opencv and computer vision I come up with two terms that are Cascade and Classifier, these terms leave me very confused as to what they may be or mean. Therefore,…
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answers1531
viewsHow to identify heat regions in thermal images?
I’m developing a project where I need to process photos taken from a thermal camera. The idea is to try to identify fires in these images. I would like to know what techniques I can use for such a…
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5
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answer1306
viewsIdentify objects in an image with javascript/php
Is it possible to identify objects in a given image with Javascript or PHP? Facial recognition I know has how, and how would other objects?
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5
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answer992
viewsImage segmentation with Canny Edge Opencv
I’m trying to target the edge of both the iris and the pupil using Canny Edge from Opencv. However all the parameters I used do not meet the criterion of leaving well delimited the two edges. The…
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5
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answer247
viewsRemove eye shine on image
Well, I’m trying to apply Canny edge to the image but the brightness that is contained in the pupil hinders the result because to have an edge with cv2.Canny() or feature.canny() needs there to be a…
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4
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answer1728
viewsHow to save a video captured by webcam without showing it using Opencv in python?
I’m starting to learn Computer Vision. I’m using the Opencv module for Python 3. Reading tutorials, discover the following script: import cv2 cap = cv2.VideoCapture(0) fourcc =…
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3
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answer58
viewsUse Opencv in Ubuntu c++
I am using Ubuntu with Opencv to develop a computer vision method, previously used in windows Opencv and put the following configuration in qtCreator to recognize Openccv. INCLUDEPATH +=…
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2
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answer5336
viewsDetecting colors or geometric shapes of an image
Is there a framework for detecting colors or geometric shapes within a static image, such as a . jpg? Preferably for C# or java Hypothetical scenario: The framework would identify that there are 3…
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2
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answers103
viewsProblems with Opencv - Eyes Cascade and Face Cascade
Hey! What’s up? I am making a program in C++ with Opencv and when running appears the error below This is the error that is occurring without Try-catch This is the error occurring with Try-catch int…
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1
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answers189
viewsStereo Vision in Matlab
Hello! I’m trying to run a matlab algorithm that uses only matlab functions. The program should initially calibrate the cameras, extract their parameters and generate a disparity map through two…
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answers50
viewsCOMPUTER VISION - MULTI-TARGET TRACKING
How to track people in images and video. I would like you to tell me efficient Apis or libraries that perform this task. I wish for a result similar to that video. Well I’m running the risk of…
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1
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answer185
viewsError finding the center of an Opencv Python object
Hello, I am studying opencv to use in a drone and while I was implementing a code of a tutorial that detected objects and drew a circle in the center of it, and for that you should take half the…
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answers120
viewsDefine sections in a color recognition program
I am working on a project, which next year will become my TCC. I am learning the language of Python, and for now I have had some advances. I was reading about computer vision, but I still have some…
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answer73
viewsProblem Running Watershed Distance Transform in Opencv 4.0.0
I am working on an object detection project. I use Opencv 4.0.0 and codeblocks 16.01 on Ubuntu 18.04.1. I am testing the Watershed Distance Transform technique using the code of this tutorial:…
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answer48
viewsHow can I print my results in a text file?
Well, I need to solve some linear systems through the Jacobi method using Python 3.8 programming, I made the code (which I’ll leave below), but I can’t make a print file that stores my results in an…
python-3.x mathematics file-system computer-vision programming-principlesasked 4 years, 1 month ago Victor Cunha 1