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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.

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What's the best marker in a video for recognition?

I'm currently building an automatic synchronisation processing between a video track (coming from a camera) and an audio tracks (coming from a micro). To do that, I plan to build a small web application who will display a clapper with my smartphone…
mbreton
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C# image recognition

I'm currently searching for a C# image recognition library. What I want to do: I want to write a function that scans an image and returns if another image is part of it. Or at least something that looks familiar in case that the angles of the two…
Mickey
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What are good features for classifying photos of clothing?

I want to build a clothing classifier that takes a photo of an item of clothing and classifies it as 'jeans', 'dress', 'trainers' etc. Some examples: These images are from retailer websites, so are typically taken from the same angle, typically…
Wilfred Hughes
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Differences between two images with slightly different point of view and lighting conditions with OpenCV

With the method explained in CV - Extract differences between two images we can identify the differences between two aligned images. How to do this with OpenCV when the camera angle (point of view) and the lighting condition are slightly…
Basj
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OpenCV shape matching between two similar shapes

I'm trying to match a slightly irregular shape to a database of shapes. For example, here the contour I'm trying to match: For more information, this is an outline of an HDMI connector, represented as a contour. It is slightly rough as this was…
Cyon
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Classify faces from VNFaceObservation

I'm working with Vision framework to detect faces and objects on multiple images and works fantastic. But I have a question that I can't find on documentation. The Photos app on iOS classify faces and you can click on face and show all the images…
mhergon
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Retrain Tensorflow final layer but still use previous Imagenet classes

My objective is to "add" more classes to the existing 1000 Imagenet classes that came with Tensorflow Inception. Now I could just re-run the whole thing by training from scratch using bazel-bin/inception/imagenet_train but that would take a long…
HP.
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Using Nearest Neighbour Algorithm for image pattern recognition

So I want to be able to recognise patterns in images (such as a number 4), I have been reading about different algorithms and I would really like to use the Nearest Neighbour algorithm, it looks simple and I do understand it based on this…
user293895
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Distance between hyperplanes

I'm trying to teach myself some machine learning, and have been using the MNIST database (http://yann.lecun.com/exdb/mnist/) do so. The author of that site wrote a paper in '98 on all different kinds of handwriting recognition techniques, available…
michael dillard
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Real time OCR in python

The problem Im trying to capture my desktop with OpenCV and have Tesseract OCR find text and set it as a variable, for example, if I was going to play a game and have the capturing frame over a resource amount, I want it to print that and use it. A…
Novet
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How to search for an image on screen in C#?

I want to search for an image on screen using C# or other .NET languages(like powershell). Something like i give an image location in the file system and the code consider the whole screen as an image and search the image in the file system in the…
Just a learner
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Retrieve the pixel values of an image with Haskell

Is there a way or a library available that can load an image (jpeg, png, etc) and assign the pixel values of that image into a list or matrix? I'd like to do some experiments with image and pattern recognition. A little nudge in the right direction…
subtlearray
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Logo detection using OpenCV

I'm attempting to implement an easter egg in a mobile app I'm working on. These easter egg will be triggered when a logo is detected in the camera view. The logo I'm trying to detect is this one: . I'm not quite sure what the best way to approach…
dbotha
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Image downscaling algorithm

Could you help me find the right algorithm for image resizing? I have an image of a number. The maximum size is 200x200, I need to get an image with size 15x15 or even less. The image is monochrome (black and white) and the result should be the…
user1131662
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Shape Recognition - counting mangoes

I would like to be able to process a close-up image of a mango tree so that I can identify and count the mangoes. A mango is roughly an oval or ellipse shape that is uniquely different from the leaves and branches in the image. I would like to be…
Joy Buchanan
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