i would need some help for getting correct distance from disparity map ( had read through the opencv Book and checked forums but not sure where i got wrong)
i have done these steps:
single calibrate for both camera
Stereo calibrate both f…
I have this image : https://imgur.com/9A7542w
And i am trying to get the contours of the image but as we can see in this : https://imgur.com/VU7KqiS
where there is glare, the contours of some circles are not drawn.
I assume that if i get …
I am trying to get thin line from a broad un-even needle object.
I have followed the below step for the approach.
Find the edges, use contours to remove small area regions, and draw a line over the needle using diagonal.
But I am not able …
I have an Ubuntu 20.04 on which I am installing opencv-4.2.0. When I ran the make command, it threw a syntax error at the very end of the make process:
[100%] Built target opencv_version
ubuntu@ubuntu:~/opencv-4.2.0/build$ inlined from…
I come across this question, and wonder if there is any issue with it. The title says swapping GREEN and BLUE is desired. The "obvious" solution is said to use cv2.cvtColor(img, cv2.COLOR_BGR2RGB).
However, that seems to swap B…
Traceback (most recent call last):
File "C:\Users\hp\HumanCounter.py", line 59, in
cv2.imshow(‘a’,oldFgmask) #Maskeli goruntuyu actik.
error: OpenCV(4.5.1) C:\Users\appveyor\AppData\Local\Temp\1\pip-req-build-4kjsgr0j\opencv\mod…
I am working on a project to process images from a camera in real time
using a neural network . I have trained the
model already and it works quite well with the function
predict from Keras and show processed output images of my input ima…
I’m using canny to try to find the edges on an image, the problem I have is canny make my vertex rounder. In the 4° image you can see the result of Canny where the vertex are curve.
Result of operation
I try one more complex code from here…
I am a long time I have a problem with the introduction of modifications. Below is just a fraction of the code that I have shortened and simplified to the limit.
from tkinter import *
from tkinter import filedialog
from tkinter import mess…
I have some Images like this. I need to find the boundary of each pellet in these images. I’m using python and OpenCV. I try some approaches like waterShed and hough circle but the result wasn’t good.enter image description here
enter imag…
I am trying to detect the eyes using OpenCV and hear cascade files…I have the files for both left and right eye but the problem was during live testing:
the left eye is getting registered as both left and right eye and the same for right…
Recently I’ve been working on cable position/height approximation using canny and contours. When no area found in roi, it will print out text that says "error". But when I do elif area < 0: then print out some text, area of co…
I am implementing a contour-finding algorithm for pixel-wide contours in binary images. It needs to be robust against deletion of individual pixels (i.e. pixel-wide gaps).
Various attempts at dilation & erosion kernels have not yielded…
My image is 640 columns x 480 rows, I enqueued my kernel with a global size equal to columns and rows and with a local size of 32×32.
So here is my Kernel:
__kernel void grayKernel(__global uchar* data, __global uchar* output) {
const int…
First i’m a beginner in Linux and CUDA so i apologize for any missing information.
I am working on a JETSON Xavier on Ubuntu 18.04
I already installed OpenCV 4.5.1 with Cuda 10.2 following this tutorial : https://qengineering.eu/install-op…
I’ve been thinking of a way to read the uploaded Video from POST request with ffmpeg-python or OpenCV so I can process it before saving, so is it possible?
And if not, then is it safe to save the video into disk and then do all the process…
I am trying to open a yuv format image. I can open it with rawpixels.net and display it after setting the following
width:1920
height:1080
predefined format: yuv420 (nv12)
pixel format yuv
But if I open with opencv with the following code…
def translate(phrase):
translation = ""
for letter in phrase:
if letter.lower() in "aeiou":
if letter.isupper():
translation = translation + "G"
else:
…
Background
Given a black & white image covered with bright color bars, the goal is to identify it. The original image is still visible, though it isn’t sharp enough to identify.
Question
Given a pixel as RGB format, I need to identify…
My first foray into using a GPU has been disappointing due to weird timing results. Below is a snippet of code using UMat in OpenCV to find dead-space at the top and bottom of a binary image. Most of the time the findNonZero call excutes …