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OpenCV Reviews & Product Details

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What do you like best about OpenCV?

Good question. I never got the chance to find out. Review collected by and hosted on G2.com.

What do you dislike about OpenCV?

I just tried getting started with OpenCV and immediately ran into trouble. This program works off the old DOS like shell, so goodbye using a GUI (graphical user interface). It takes over 200 GBytes to fit on the hard drive, so I couldn't put it on my C drive. The program doesn't like operating from any other drive and immediately failed. I'm really saddened that this OpenCV doesn't even work on my computer. I had saved my money to enroll in this course, only to be very disappointed. I hope I get my money back because I'm totally broke and have no job. Review collected by and hosted on G2.com.

Recommendations to others considering OpenCV:

Try running your software on a drive other than C drive. Review collected by and hosted on G2.com.

What problems is OpenCV solving and how is that benefiting you?

It doesn't work. I followed the instructions, but the program says that it can't locate the file. I think the program is having trouble find the file on the C drive because it's operating from the G drive. I had installed it on the G drive because it's too big to fit on my C drive. Review collected by and hosted on G2.com.

OpenCV Overview

What is OpenCV?

OpenCV is a tool that has has C++, C, Python and Java interfaces and supports Windows, Linux, Mac OS, iOS and Android for computational efficiency and with a strong focus on real-time applications, written in optimized C/C++, the library can take advantage of multi-core processing and enabled to take advantage of the hardware acceleration of the underlying heterogeneous compute platform

OpenCV Details
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Product Description

OpenCV is a tool that has has C++, C, Python and Java interfaces and supports Windows, Linux, Mac OS, iOS and Android for computational efficiency and with a strong focus on real-time applications, written in optimized C/C++, the library can take advantage of multi-core processing and enabled to take advantage of the hardware acceleration of the underlying heterogeneous compute platform


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OpenCV
Year Founded
2000
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Twitter
@opencvlibrary
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Recent OpenCV Reviews

Subham S.
SS
Subham S.Enterprise (> 1000 emp.)
5.0 out of 5
"Best library for Computer Vision and Image Processing"
1. As a Data Scientist, I have to work on computer vision projects involving complex image processing tasks. The OpenCV library makes it easy to ma...
deniz y.
DY
deniz y.Enterprise (> 1000 emp.)
4.5 out of 5
"The best image manipulation library"
An image processing library that makes you feel like Hari Seldon when used with TensorFlow. An open-source library with many algorithms for image p...
Chandresh M.
CM
Chandresh M.Mid-Market (51-1000 emp.)
4.5 out of 5
"Library you need for Image Manipulation"
The first thing I like about OpenCV is, it's free of cost. I don't have to pay to use it. Another thing I like is it occupies very little memory. O...
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38 out of 39 Total Reviews for OpenCV

4.5 out of 5
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38 out of 39 Total Reviews for OpenCV
4.5 out of 5
38 out of 39 Total Reviews for OpenCV
4.5 out of 5

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Subham S.
SS
Data Scientist
Enterprise(> 1000 emp.)
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Verified Current User
Review source: G2 invite
Incentivized Review
What do you like best about OpenCV?

1. As a Data Scientist, I have to work on computer vision projects involving complex image processing tasks. The OpenCV library makes it easy to manipulate the image data as per our requirements.

2. It is fast and with a lot of inbuilt functionalities along with classical and State-of-the-art algorithms, which makes our job easier.

3. It has very good memory management which makes it efficient. Review collected by and hosted on G2.com.

What do you dislike about OpenCV?

I faced some issues while displaying images using the OpenCV library. It used to freeze the display window on my Macbook. Later I had to replace it with matplotlib. Other than this it has been a boon to us for all kinds of computer vision tasks. Review collected by and hosted on G2.com.

What problems is OpenCV solving and how is that benefiting you?

OpenCV is a very powerful library that is being used for various tasks like Image Processing, Object detection, Image recognition, OCR and many more.

OpenCV has helped me :

1. In solving complex tasks in Kaggle competitions(Computer Vision). For example, Detecting digits/numbers in an image when the background is a checkerboard(black and white patches). Here, we had to modify the background into a desired one so that we could fetch the numbers using the contours function in OpenCV and then apply a model trained on the MNIST dataset to identify the number. It surely was a very interesting competition.

2. Also helped me in working with some real-world Face Recognition and Object detection tasks as well. Review collected by and hosted on G2.com.

Chandresh M.
CM
System Engineer
Mid-Market(51-1000 emp.)
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Review source: G2 invite
Incentivized Review
What do you like best about OpenCV?

The first thing I like about OpenCV is, it's free of cost. I don't have to pay to use it. Another thing I like is it occupies very little memory. OpenCV wrote in C++ language, so it is swift. Using OpenCV, I can do many image-related operations like edge detection, masking, pattern matching, etc. I can use it in Python language, which is very easy. Review collected by and hosted on G2.com.

What do you dislike about OpenCV?

I don't like that if I wrote the code in an older version of the OpenCV package. And when I tried to use it in a newer version, then it threw me an error. So I have to check some functions to correct it. Review collected by and hosted on G2.com.

Recommendations to others considering OpenCV:

If you want to learn Image Processing, then you should start with OpenCV. It is straightforward to understand. Review collected by and hosted on G2.com.

What problems is OpenCV solving and how is that benefiting you?

I am using OpenCV to create projects related to Deep Learning and Image Processing. I have developed a few projects using the OpenCV python package. Review collected by and hosted on G2.com.

deniz y.
DY
Business Intelligence Manager
Enterprise(> 1000 emp.)
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(Original )Information
What do you like best about OpenCV?

An image processing library that makes you feel like Hari Seldon when used with TensorFlow. An open-source library with many algorithms for image processing and machine learning. It is platform independent and has a bsd license. It has local binary pattern, fisher faces and eigenfaces algorithms ready for face scanning and face recognition. It was also used in interesting fields such as agriculture. Review collected by and hosted on G2.com.

What do you dislike about OpenCV?

I'm happy with Opencv, but sometimes it's slow. Review collected by and hosted on G2.com.

What problems is OpenCV solving and how is that benefiting you?

I use Open CV when classifying and analyzing Instagram posts. Review collected by and hosted on G2.com.

Shekhar P.
SP
Artificial Intelligence Engineer
Enterprise(> 1000 emp.)
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Frank M.
FM
Managing Partner
Small-Business(50 or fewer emp.)
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Review source: Organic
What do you like best about OpenCV?

As a new start-up, open-source software is important because of its cost. Review collected by and hosted on G2.com.

What do you dislike about OpenCV?

improving the accuracy of image recognition Review collected by and hosted on G2.com.

What problems is OpenCV solving and how is that benefiting you?

Recognition of fruit buds on fruit Trees Review collected by and hosted on G2.com.

Sarthak S.
SS
Machine Learning Engineer
Small-Business(50 or fewer emp.)
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What do you like best about OpenCV?

We can easily use prebuilt classifiers and its opensource, which is awesome Review collected by and hosted on G2.com.

What do you dislike about OpenCV?

its hard to use because its different versions are different in syntax Review collected by and hosted on G2.com.

Recommendations to others considering OpenCV:

good library Review collected by and hosted on G2.com.

What problems is OpenCV solving and how is that benefiting you?

using opencv to solve computer vision problems like pattern detection and image processing Review collected by and hosted on G2.com.

Stanley D.
SD
Data Engineer
Computer Hardware
Small-Business(50 or fewer emp.)
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Incentivized Review
What do you like best about OpenCV?

I love the fact that one can perform resizing, transformation, and many other image processing techniques on images with the use of simple functions. Sometimes, I even choose to edit my photos using OpenCV rather than commercial image editors. Review collected by and hosted on G2.com.

What do you dislike about OpenCV?

OpenCV is very perfect for me at the moment, I haven't had any reason to dislike it. Review collected by and hosted on G2.com.

What problems is OpenCV solving and how is that benefiting you?

While working on an image recognition task, I needed to resize and also change the dimension format of the images in the image dataset from (3, 400, 400) to (500, 800, 3). With just a single function in OpenCV, I was able to solve the problem. Review collected by and hosted on G2.com.

RS
Software Developer
Mid-Market(51-1000 emp.)
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What do you like best about OpenCV?

In OpenCV, I primarily like the way it effortlessly detects the objects in a live image(from a camera module); image recognition is what I find quite better in OpenCV. Another feature of OpenCV is Color masking ad colour tracking, which I use a lot in my one the projects for differentiation if the objects in the image. It takes very less time to detect an object with optimum accuracy in OpenCV compared to other similar libraries. As it is written in Python integration ease and performance both are high. Review collected by and hosted on G2.com.

What do you dislike about OpenCV?

So far so best library for image recognition, and I have not complains using it til the date. Review collected by and hosted on G2.com.

Recommendations to others considering OpenCV:

I recommend using the OpenCV library to everyone, who is doing their current development in object detection or any other computer vision related project. As it makes this so easy and time-saving. And also it is opensource library to use free of cost. Review collected by and hosted on G2.com.

What problems is OpenCV solving and how is that benefiting you?

With the help of OpenCV, I have developed one module during my internship session at my organization, in which I used it to detect the image from the camera and find similar images from the gallery without an internet connection. I have successfully done that with OpenCV library and tesorflowLite. Review collected by and hosted on G2.com.

SS
Sonu singh
Mid-Market(51-1000 emp.)
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Review source: G2 invite
Incentivized Review
What do you like best about OpenCV?

Opencv is a open source computer vision library. It is developed for c++ and python. It supports windows, linux, mac, ios. This has many functions that help in image processing. It treat the image as 2D array of pixels. There are functions that changes the coloured image to gray. It helps in object and face detection, edge detection, sharpens and blurres the image etc. It is available free and it has best online support so one can easily use it and learn it. It so many methods that plays with different properties of an image or videos and changes it. Review collected by and hosted on G2.com.

What do you dislike about OpenCV?

Till now nothing is to be disliked for me Review collected by and hosted on G2.com.

Recommendations to others considering OpenCV:

Yes use it as it is best for image processing Review collected by and hosted on G2.com.

What problems is OpenCV solving and how is that benefiting you?

I have used it in my project where i have to read digits from an image. I used opencv different function for python and change the coloured image to gray, did edge detection and extracted area of interest from the image. It is very fast and easy to understand. A lot of support is also available to make it understand. Now i am using it for pedestrians analysis. Review collected by and hosted on G2.com.

shukai c.
SC
Graduate Research Assistant
Biotechnology
Enterprise(> 1000 emp.)
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Incentivized Review
What do you like best about OpenCV?

official interface to Android java and python Review collected by and hosted on G2.com.

What do you dislike about OpenCV?

a few interpolation algorithm in resize function tend to generate Moiré pattern when running multiple resize operation in a loop Review collected by and hosted on G2.com.

What problems is OpenCV solving and how is that benefiting you?

synthesis of imaging data for artificial intelligence application

easy to be integrated with python numpy for Review collected by and hosted on G2.com.