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Questions tagged [image-comparison]

Methods, algorithms and techniques for the programmatic comparison of image data.

Methods, algorithms and techniques by which images can be programmatically compared, either to one another or to a database of extracted image features.

Meaningful image comparison will typically involve the extraction of some of features from the images in question, as metadata. Many techniques for feature extraction (and subsequent feature selection) come from the content-based image retrieval field.

Typical image-comparison schemes necessitate some manner of image processing as well.

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Image compare autoit

Is there a way to look for similar images in a folder but of different dimensions or minor differences like say 90% match. I would prefer a sample code or external plugin or any library function (I don't know any library function that works without…
user6608083
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Image Comparison in VB.Net

After reading many related posts on this site on the subject of image comparison I'm thinking I'll try implementing a PCA on each image in order to see if an image is 'similar' or not, but I'm not sure how to get the data from my images - is there a…
Becky Green
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Find the differences between two images for screen sharing apps

Hi I'm writing a client/server remote viewer (desktop sharing) application where screenshots of the desktop are sent across the network over a socket. I'd like to reduce the size of the transfer by getting the difference between the two images and…
Thomas
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How to Compare the quality of two images?

I have applied Two different Image Enhancement Algorithm on a particular Image and got two resultant image , Now i want to compare the quality of those two image in order to find the effectiveness of those two Algorithms and find the more…
Deepak kumar Jha
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Euclidean distance returning strange results

im writing a program to compare two images against each other based on color and im using the Euclidean distance algorithm however when i run it and pass in two images i get one distance and then when i pass in the same images but the other way…
Roy James Schumacher
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how to implement comparing two screenshots in one test with playwright

I am very new to playwright and i have a problem. I am trying to implement comparing two screenshots (before and after) in one test. this is what i want to achieve: navigate to webpage take screenshot (before.png) do some stuff,state changes,…
Luka Mis
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Selenium Java image comparison

I am trying to compare two screen shots on a webpage. It is a practice page on saucelab. When you login as a standart_user and click the login button, it takes you to the products page. Then you see the pictures of products. (Backpacks, t-shirts…
Alex
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How to turn asset image into bitmap in Flutter/Dart?

I need to compare two images thus I need to decode these two images (assets) into bitmaps. I tried this: import 'package:flutter/services.dart'; import 'package:image/image.dart'; var imageData = await…
Oleksandr
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move overlap images over one another to get accurate difference

I want to get the image Difference for the print which is captured using camera. I tried many solution using python libraries: opencv, image-magic, etc. The solution I found for image comparison is for better accuracy is: move image : left to right…
mithil
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How can I compare images of the same origin that were cropped?

Suppose I have an image file/URL, and I want my software to search it within a set of up to 100 images (or at least in that order of magnitude). The target image that the software should find should be the "same" image as the given image, but it…
yby
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compare two images using OpenCV

I want to compare two images using OpenCV. Could I filter the nearest matching result among other training data set..? Example : the Database containing training image which show number 5 in using one hand. Is it possible to match someone else ,same…
devan
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Image comparison using im4java

public class im4jav extends test{ public static void main(String[] args) throws IOException { WebDriver driver = new FirefoxDriver(); driver.get("https://www.google.co.in/?gfe_rd=cr&ei=fkKzVqasB8yl8wefrraoCg&gws_rd=ssl"); File scrFile…
Suraj Prasad
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Image comparison in php

My scenario is as follows: I have to save 1000 of images in database, and then I have to compare new image with database images for matches (match should be 70% or more) to get the best match image from database in php. is there any algorithm or…
Vikas Kad
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How to compare two images in ColdFusion

I am trying to compare images and find if they are same or not. Images can have same name but the actual image might be different. The code that I have so far.
Roman
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Matching images using Histogram comparison c++

I have a base image(a number or an operator) which i have to compare with 14 images(0 to 9 and * / - +) to know which one matches with the base image. I created the base image's histogram and using a loop I create for all the 14 images' histograms…
user2919740
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