OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
I successfully implemented the OpenCV square-detection example in my test application, but now need to filter the output, because it’s quite messy – … Read more
opencv
ImportError: numpy.core.multiarray failed to import
I’m trying to run this program import cv2 import time cv.NamedWindow(“camera”, 1) capture = cv.CaptureFromCAM(0) while True: img = cv.QueryFrame(capture) cv.ShowImage(“camera”, img) if … Read more
How to resize an image with OpenCV2.0 and Python2.6
I want to use OpenCV2.0 and Python2.6 to show resized images. I used and adopted this example but unfortunately, this code is for … Read more
How to remove convexity defects in a Sudoku square?
I was doing a fun project: Solving a Sudoku from an input image using OpenCV (as in Google goggles etc). And I have … Read more
Python – Extracting and Saving Video Frames
So I’ve followed this tutorial but it doesn’t seem to do anything. Simply nothing. It waits a few seconds and closes the program. … Read more
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 high value if they … Read more
Is there a way to detect if an image is blurry? [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so … Read more
How do I install Python OpenCV through Conda?
I’m trying to install OpenCV for Python through Anaconda, but I can’t seem to figure this out. I tried conda install opencv conda … Read more
How to crop an image in OpenCV using Python
How can I crop images, like I’ve done before in PIL, using OpenCV. Working example on PIL im = Image.open(‘0.png’).convert(‘L’) im = im.crop((1, … Read more
Cannot find module cv2 when using OpenCV
I have installed OpenCV on the Occidentalis operating system (a variant of Raspbian) on a Raspberry Pi, using jayrambhia’s script found here. It … Read more