Stack Overflow
Stack Overflow

Questions tagged [image-recognition]

Classification of a detected object into different known categories.

The classical problem in computer vision, image processing, and machine vision is that of determining whether or not the image data contains some specific object, feature, or activity. There are different varieties of this , such as object detection, Identification (like face recognition ), Content-based image retrieval ( like similar images option in google image search) etc.

1351 questions
0
votes
0 answers

mobile scan and recognize image for iphone

I've just been asked to build an iphone app that presents some typical static content. However, some content is locked until the user takes the phone and scans an image of a logo that belongs to client's company. If the scanned logo is valid, then…
John
  • 32,403
  • 80
  • 251
  • 422
0
votes
1 answer

Is there a library that can take an image and do processing to determine things about it?

Is there a library that can take an image and do processing to determine things about it (such as: is the image a person of female or male)? Is there such a free tool out there?
TIMEX
  • 259,804
  • 351
  • 777
  • 1,080
0
votes
1 answer

create equations from lines in image in python 2.7

What python library would be useful in creating an equation from an image of straight edges. Something that would take an image, divide it up into a xy grid, recognize that there is a straight line and find the linear equation of that line with…
Jkallus
  • 431
  • 1
  • 4
  • 16
0
votes
2 answers

Color-based image segmentation method for detecting square or triangular shapes

Could you suggest an approach for color-based segmentation for square or triangular shapes? I'm working on an iOS app for recognizing road signs and have implemented it for round signs but that approach doesn't seem to work with other forms. For the…
Vladimir Tchernitski
  • 361
  • 2
  • 5
0
votes
1 answer

Compressing BMP methods

I am working on a project to losslessly compress a specific style of BMP images that look like this I have thought about doing pattern recognition, to find repetitive blocks of N x N pixels but I feel like it wont be fast enough execution time. Any…
George L
  • 1,673
  • 2
  • 26
  • 39
0
votes
0 answers

Image Recognition iPhone facing issues

I have used the following help Image recognition library/API for iPhone code to use an API - http://www.moodstocks.com/ to create an image recognition app. Now my questions are: 1> I want to play a video when the user scans the image successfully in…
ScarletWitch
  • 522
  • 6
  • 23
0
votes
1 answer

Object Detection with Hamming distance

I am using FAST and FREAK to get the descriptors of a couple of images and then I apply knnMatch with a BruteForceMatcher matcher and next I am using a loop to separate the good matches: float nndrRatio = 0.7f; std::vector keypointsA,…
Str1101
  • 859
  • 2
  • 12
  • 22
0
votes
1 answer

Disable animation on image recognition with Wikitude SDK 3.0

I'm integrating a modified SDK 3.0 sample into a big app in which I'm working. When I detect whatever Trackable2DObject and show an ImageDrawable (for example, the surf table), this ImageDrawable appears from the z-index very slowly. Is there any…
Neonigma
  • 1,825
  • 17
  • 20
0
votes
1 answer

Which methods can I use to recognize characters/letters without an OCR?

I want to know if there are some methods to recognize letters (my case is a little easier, I need to recognize only capital letters) without using an OCR. At the moment my application can produce a binary version of each character, not very precise…
Univers3
  • 935
  • 1
  • 13
  • 34
0
votes
2 answers

Algorithm to filter out photographs out of a bunch of random images

i need a way to determine wheter a picture is a photograph or not. I've got a bunch of random image files (paper document scans, logos and of course photographs taken by a camera) and i need to filter out only the photographs for creating a…
user2333113
  • 3
  • 1
0
votes
1 answer

What is the simplest way to identify seperate shapes in binary image?

So I have the following image: Now I wish to find the center point of each individual disconnected shape. I would also like to find the width and height if possible. I'm using Java and the java.awt.image package but even just a general solution to…
Z-Mehn
  • 268
  • 1
  • 2
  • 12
0
votes
2 answers

Image/scene recognition

Hi guys I'm looking for a solution to that enable a user compare a image to a previously store image. For example, i take a picture on my iPhone of a chair and then it will compare to a locally store image, if the similarity is reasonable then it…
frank
  • 1
  • 1
0
votes
1 answer

Is it possible to do object recognition of a movie file (mp4, mov,...)

Is it possible to do object recognition of a movie file (mp4, mov,...)? For example, stream a movie and look for objects or people and determine who the person is or what products are in the movie? Would the process boil down to taking many…
Michael Thamm
  • 131
  • 1
  • 6
0
votes
1 answer

Getting Weird Results From Sklearn SVM Models

I am attempting to train a support vector machine from scikit-learn, but I dont seem to be getting any results and Im wondering if any svm or scikit learn experts out there might know why. Here is the example I am running. I have some hand written…
David Williams
  • 8,388
  • 23
  • 83
  • 171
0
votes
1 answer

Cryptic Error Message from Scikit Learn Svm Fit

I am attempting to train a support vector machine with scikit learn using these docs but I am getting an error message I do not understand. Am I doing something wrong? Here is my script. The idea is I have a file where each line is of the form…
David Williams
  • 8,388
  • 23
  • 83
  • 171
1 2 3
…
90 91