Questions tagged [computer-vision]

Computer vision is a field that includes methods for acquiring, processing, analyzing, and understanding images and, in general, high-dimensional data from the real world in order to produce numerical or symbolic information, e.g., in the forms of decisions.

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What software can I use to identify a specific visual event in a video and trigger actions once it's located?

I'm currently planning out an application that takes a video input, searches for a pre-defined event (an existing image) in said video and then triggers actions upon locating a defined event. The ...
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What technology should I use for smart cards?

I am an undergrad student majoring in CS. I recently took my FYP to upgrade my university's overall status in using advanced technology. Put simply, what I proposed was to use an ALL-IN-ONE smart card ...
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Searching for Open source employees AI face check software

I have one request from the industry (mining industry), for having one Employee Check In & Out by using the AI face detection methods. So I have googled and found some of ready AI face detection ...
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Software for Passport ID OCR

Can you recommend open source software for recognizing passport numbers in photographs? Or some other tool that can be used to solve this problem. We have data on which we can train software. ...
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Self-hosted OCR

I am looking for self-hosted OCR software. Requirements: Optical character recognition on images Not just documents but also natural-scene-images Linux Support List item Examples: https://ocr.space/...
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Is there a software that stitch 4 images together to form 1 big image?

Suppose I have a phone with bad camera, I want a good quality image. I take a photo at each corner of a document. So I will have 4 photos. I want to concatenate these photos together to get one big ...
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What Python library / API would you recommend for basic on-screen image and text processing?

I am building an application that interacts with my business's websites, as well as will hopefully manage some of the internal emailing as well. The emailing part is the tricky one; for the rest, I ...
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Extracting pieces of information from faces

I need to extract person features from photos. Features that I care about: sex race age hair color* eye color* (Features with * is nice to have but it's not necessary)
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Need .NET library for machine vision

I am writing something in C#/.NET in Visual Studio to find blobs (small white circles on a dark background. I need to translate these center points of the blob to real world coordinates. I would need ...
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Pre-built Ubuntu setup for deep learning

I want to work on deep learning and computer vision in Linux, say Ubuntu. I know there are pre-built images in AWS, Azure for this purpose. But I want to install it on my PC to VirtualBox or to hard ...
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Is there a python library for classifying whether an image contains handwritten text?

I don't require what is written inside that image, i just want to know whether an image has any handwritten text.
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Create your own Cascade File

I have started to study object detection with Python-OpenCV. I want to create my own cascade files. Is there any software that will do it instead of me? For example, I can just give the positive and ...
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Object tracking recomendations?

I'm looking for recommendation on what exactly i should try to learn to tackle this problem: I'm trying to analyze the physical characteristics (ie: location, velocity, and acceleration) of a ball ...
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Computer vision without internet connection?

I want to recognize a purple flower between green grass and to do this I will use computer vision. I read that most used methods is OpenCV but I have a problem. I will use this technique with a robot ...
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Merge two point clouds that have different scale but represent the same object

I'm working on a reproduction of a statue. I ended up with those two point clouds: The tiny one on the right is not far away - it's right to the big one. I need software that would allow me to ...
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How to simply check the visibility of cubes?

I have a camera and a pile of up to 10 cubes. I know the position and orientation of the cubes and the camera. Now I would like to figure out what pixel belongs to what cube and create a labeled image ...
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Finding almost duplicate images in scanned photos

I have a lot of printed photos which I have been digitalising. As it happens, some photos were printed more than once, and as such they have been digitalised more than once. I am trying to find those ...
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Image processing software for extracting fields from a form

I am looking for recommendations for a somewhat intelligent image processing library. My use case: I will scan multiple physical paper forms. I want to intelligently identify the edges of the form (...
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2 answers
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Compare two images, and return the rate of similarity (e.g., in %)

I am looking for a program that can compare two images, and return the rate of similarity (e.g., in %). Any license, price, and operating system is fine. I mostly interested in the quantity of the ...
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A library for C# that compares colors from webcam feed

I want to write a program that can grab a frame from a webcam feed (usb webcam), takes a color sample from a specific coordinate, compares to a previous frame or specified color, and then takes an ...
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2 votes
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Is there a consumer level handwriting synthesis engine?

A number of papers have been written on handwriting synthesis using techniques such as computer vision and neural networks. Can anyone recommend any software (including reusable code) which can ...
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Could I use Amazon Rekognition to uniquely identify animals?

My team is starting a project that will use computer vision to identify animals. This is not a simple computer vision problem like: 'is it a frog?: yes|no`. The idea is that a camera takes photos of ...
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Machine learning for traffic sign recognition

I am working on a project and I need to detect traffic sign. Given my limited experience with machine learning and deep learning, I was wondering if someone could point me to any open project or ...
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1 answer
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Automatically find small objects in picture and extract them as smaller images

We plan to create photographs of small particles using a microscope. These small elements tend to be convex and they are not supposed to touch each other. The background can be a little bit noisy, but ...
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Onscreen image recognition for Linux

I am looking for an open source program to recognise known features, letters, numbers and symbols, displayed on my screen on a 2D plane. There may be some occlusion or particle effects over the ...
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2 votes
1 answer
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What software can I use to extract motion from a video file?

I have video files recorded by a surveillance camera. Every file is 24 hours long. While I use Linux' motion to do motion detection in real time directly from the camera, I also would like to check ...
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5 votes
2 answers
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Movement detection in and out of a perimeter from a live video feed

I have a school project and I need to do perimeter control in an open area. So I have a drone up in the air to provide live video feed into my computer but I have no idea how to detect when ...
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2 votes
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Output some development metric for each muscle of the human body given a picture of a human

I am looking for a program or web service that takes as input a picture of a human, and outputs some development metric for each muscle of the human body. By development metric, I mean some metric ...
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4 votes
1 answer
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Open source ready-to-use computer vision to tell whether a picture shows a dog/car/etc

I have a million pictures, and need to categorize them with keywords. Example: A picture of a dog driving a car near the Eiffel Tower would get the keywords "dog" and "car" and "eiffel tower". ...
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2 votes
4 answers
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Camera video software motion

I have a 12 hours of videos with 9 channel that I need to review. Is there a software that would allow me to know where in the video there was movement or at least anything to help in the process? ...
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1 vote
1 answer
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Image recognition library that accepts transparency

In order to complete a personal project I need to know what the "tools" (libraries) will be in order to do so. I need a library that would be capable of detecting images in a 3D game (so that I can ...
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1 vote
1 answer
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Freeware that detects entities in pictures

I'm looking for freeware most preferably with open code that detects basic entities in pictures. It means if I run it over a picture (gif, jpg, etc.) the system will find basic entities such as ...
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What is the best algorithm/library to use to detect vehicles in an image/video?

I have used opencv to train HAAR cascade, and I implemented it with opencv-java and found out that it gives false positives and its only good for face recognition. There is HOG descriptor, but ...
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Affordable real-time stereo reconstruction software?

Here's more information: I’m interested in capturing the real-time deformation of a small object on the centimeter scale. My price limit is $USD 500.00 The OS I'm using is OS X El Capitan. ideally ...
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1 vote
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Parallel version of SIFT?

I know that SIFT is considered (according to many paper) the most accurate detector & descriptor available. Btw, it's one the slowest solutions also. So, there is any parallel implementation (...
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Webcam-based behavior analysis of users reading a MS Word file

I am looking for a free software application to analyze reading behavior (where do they more stop while reading, etc.) of the readers of MS Word files. I guess such program would probably use an eye ...
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1 vote
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Any Computer Vision library that can detect and recognize my face?

There are many Image recognition library that can detect alphabets,face or object like OpenCV, EmuguCV, SharpCV... but is there any library that can recognize my face? It would recognize my face from ...
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4 votes
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Motion sequences

I'm looking for a software to script motion sequences, e.g. if you move your right hand forward press →. I have two normal webcams. It must: Be gratis and open-source Detect motion of at least: ...
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2 votes
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Fast deep learning framework for Android?

I'm going to participate in a team competition in robotics, which involves identifying and interacting with a number of objects in the surrounding, amongst others a red button and a human. To detect ...
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2 votes
1 answer
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Command line software which returns image descriptions

I have a lot of images and I search a very specific one. The file name is probably not meaningful, I only know it's a jpg image (I have 25000 on my PC). I have no idea about when the picture was taken ...
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3 votes
1 answer
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C library that can detect when eyes blink from a video

I m looking for a library of C algorithms which: can get an input video from a video camera can realize a software that can detect when eyes blink can be embedded to altium 3000 nanoboard is free or ...
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2 votes
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Extract circuit from schematic image

For my circuits homework, I like to use circuit lab (the same service that electrical engineering uses) to verify my work, but manually entering the circuits can be painful when they become large like ...
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1 answer
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Windows application that compare two similar pictures and find the difference [closed]

You know the spot the difference puzzles. Is there a app that can do that automatically?
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2 votes
1 answer
291 views

Finding duplicate images using SIFT / SURF algorithm

I have a large quantity of photos that I own spread across many sub directories on Windows 8. I wish to find all duplicate images, where the image may be resized, cropped, rotated or a border added ...
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23 votes
6 answers
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Find visually similar images to a given image on Linux

I’m looking for a tool/software that will take an image as an example and scan my hard drive to find similar images to it, just like what Google Images does on the Web. Must run on Linux. See Find ...
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14 votes
4 answers
12k views

Find visually similar images for a given image file (on Windows)

I want a software for Windows to find visually similar images (pictures) on my hard disk. My need is it must find a given image is visually similar. That is, take a sample image as input and search ...
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7 votes
2 answers
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Libraries for identifying the face structure

I am working on a medical project to identify a syndrome based on the dimensions of face as a whole, eye, nose and mouth. Just to make it clear, I am not looking for facial recognition (to input a ...
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2 votes
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Software to tell what a cloud looks like?

So, after XKCD's Tasks comic, Flickr created a solution for the problem mentioned there. Now I'm interested whether is there a solution to the problem mentioned in the Cloud comic. . So is there a ...
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2 votes
1 answer
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Sky camera software with motion detection and color change detection

I'm looking for sky camera software with motion detection (for meteors and other objects). The camera is plugged in the computer (using an USB cable) and the software should look at the camera's view ...
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10 votes
3 answers
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Filter motion in video file (surveillance video)

I recorded my 1 year old son in sleep with a night vision camera (to monitor twitching). I now want to automatically create a video containing all movement, e.g. I want to filter only the frames that ...
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