Top "Computer-vision" questions

Use this tag for questions related to Computer Vision -- any aspect of software that enables computers to perceive, understand and react to their environment using cameras.

How to verify CuDNN installation?

I have searched many places but ALL I get is HOW to install it, not how to verify that it …

cuda computer-vision caffe conv-neural-network cudnn
Image comparison - fast algorithm

I'm looking to create a base table of images and then compare any new images against that to determine if …

image algorithm comparison computer-vision
Simple Digit Recognition OCR in OpenCV-Python

I am trying to implement a "Digit Recognition OCR" in OpenCV-Python (cv2). It is just for learning purposes. I would …

python opencv numpy computer-vision ocr
Converting RGB to grayscale/intensity

When converting from RGB to grayscale, it is said that specific weights to channels R, G, and B ought to …

image-processing colors computer-vision language-agnostic rgb
Convert RGB to Black & White in OpenCV

I would like to know how to convert an RGB image into a black & white (binary) image. After conversion, …

c++ c image-processing opencv computer-vision
How to draw a rectangle around a region of interest in python

I'm having trouble with import cv in my python code. My issue is I need to draw a rectangle around …

python opencv computer-vision draw
Converting an OpenCV Image to Black and White

How do you convert a grayscale OpenCV image to black and white? I see a similar question has already been …

python image-processing opencv computer-vision
OpenCV Error: (-215)size.width>0 && size.height>0 in function imshow

I am trying to make a face tracker that combines Haar Cascade Classification with Lucas Kanade good feature detection. However, …

python image opencv computer-vision opencv3.0
Combining Two Images with OpenCV

I'm trying to use OpenCV 2.1 to combine two images into one, with the two images placed adjacent to each other. …

python image-processing opencv computer-vision
Simple and fast method to compare images for similarity

I need a simple and fast way to compare two images for similarity. I.e. I want to get a …

image-processing opencv computer-vision