HOW TO SOLVE THIS ERROR IN A CODE
import numpy as np import matplotlib.pyplot as plt import cv2 img = cv2.imread("foot.jpeg") blur = cv2.blur(img,(5,10)) rows,cols,ch = img.shape point=[[170,270],[480,220],[240, 710],[540,650]] pts1 =...
View ArticleHorizontal projection of area between 2 circles
I use OpenCV library with python. I would like to make an horizontal projection of area between two circles. As show in image below. 
View Articlehow to solve this opencv-program
http://jwlee2218.blogspot.com/2017/11/opencv-feature-matching.html i want to make a program that searches the wally. this is a code: import bumpy as np import cv2 import matplotlib.pyplot as pat...
View ArticleOpencv Email Notification
Hello, I've run into a road block in my opencv motion detection script while trying to adapt an "import smtplib" into my loop. I did not create the original script so I can't take any credit for that....
View Articlecan't open URL video source with opencv-python cv2.VideoCapture()
I'm using a 3rd party python app which uses the opencv-python module to retrieve mp4 video and do object detection. However when I try to run this on my local fedora 28 desktop, I am unable to retrieve...
View ArticleHow does opencv convert floating points data to uint8 in imwrite function to...
There is a 3 dimensional image array that contain floating points. I could save it with opencv-python as `cv2.imwrite('.jpg',image_array)`. If I load the saved image with opencv, It produce output with...
View ArticleHow to recognize outdoor objects from different angles
Hi, I'd like to get my wheeled robot with it's vision system to be able to identify various objects that are located in an out-door car park. The objects are things like ... a door...a window ......
View ArticleIs it possible to record in 4 bit greyscale with recording in color then...
Is it possible to record in 4 bit greyscale with recording in color then converting to 4 bit greyscale with opencv
View Articlehow to detect waterdroplet in given images
Hi, I am using python programming to detect water droplet its size and position in these images in real time image processing scenario. I used opencv version 4 in python. I already used canny edge...
View Articledelay of VideoCapture::read (python)
I try to capture frame from IP camera by VideoCapture::read. cap = cv2.VideoCapture(url) while True: ret, frame = cap.read() But, capture of 1st frame is delayed about 3 seconds, and subsequent...
View Articlechanging the fps of a video?
I have some demo videos with the FPS=60. I would like to change the FPS to 30. I am using OpenCV 3.4.I used the following code. This is just a snippet of the code. while True: cap =...
View Articlechanging the fps of a video?
I have some demo videos with the FPS=60. I would like to change the FPS to 30. I am using OpenCV 3.4.I used the following code. This is just a snippet of the code. while True: cap =...
View Articlechanging the fps of a video?
I have some demo videos with the FPS=60. I would like to change the FPS to 30. I am using OpenCV 3.4.I used the following code. This is just a snippet of the code. while True: cap =...
View Articlechanging the fps of a video?
I have some demo videos with the FPS=60. I would like to change the FPS to 30. I am using OpenCV 3.4.I used the following code. This is just a snippet of the code. while True: cap =...
View Articlechanging the fps of a video?
I have some demo videos with the FPS=60. I would like to change the FPS to 30. I am using OpenCV 3.4.I used the following code. This is just a snippet of the code. while True: cap =...
View Articlechanging the fps of a video?
I have some demo videos with the FPS=60. I would like to change the FPS to 30. I am using OpenCV 3.4.I used the following code. This is just a snippet of the code. while True: cap =...
View Articlechanging the fps of a video?
I have some demo videos with the FPS=60. I would like to change the FPS to 30. I am using OpenCV 3.4.I used the following code. This is just a snippet of the code. while True: cap =...
View ArticleWhat are the functions in opencv that takes only 8bit images
I am trying to do processing of 16 bit as well as 8 bit images . Can anyone mention if opencv takes only 8bit images for processing or will it take 16 bit images? Can you specify which all functions...
View Articlewhile finding circle using hough circle i find this error?
all_circs=cv2.HoughCircles(img1,cv2.cv.CV_HOUGH_GRADIENT,0.9,120,50,30,60,110) AttributeError: module 'cv2.cv2' has no attribute 'cv' i am getting thi error
View Articlehow can we predict age of person from photo using python
I have done it for video but is not able to do it for a photo. when I try to use a photo using the following code: (ref:...
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