LEARN OPENCV in 3 HOURS with Python | Including 3xProjects | Computer Vision

So what TUTORIALS AND PROJECTS would you like to see next ? Comment bellow and I will create the ideas with the highest votes. And thank you for all the love and support.

I can watch this video 10 times

Chapter 7 kal dektu .

I appreciate

Old and need updates

in chapter 6 you did something interesting which was to mirror an image, could I do this same code using a stereoscopic camera? I would like to make a project with something like this

A

seriously you are the best teacher, I have seen many tutorial online, yours really open my mind, Thank you bro.

As a beginner, this video is beneficial to me thank you 🥰

Why I'm so late

will python 3.11 work

ImportError: DLL load failed: The specified module could not be found.
i'm having this problem and can't get over out of it at any cost. please help me out

can we work with the latest python version 3.11.4 ?? pls answer

Function?

Amazing video thanks a lot. Does anyone have the whole function he uses in chapter 6 we can't see the end of the long lines n

i am not getting suggestion (Functions of CV2) such as imread etc in pycharm does anyone know how to solve it

Great tutorial - Love all your videos!!! Just wanted to mention to you that you are missing some resources for this tutorial, example video12.mp4 and some images that you reference in this tutorial. thank you!!

Hey Murtaza, please make a video on human movement analysis project

Chapter 6 Missing Code :

import cv2
import numpy as np


def stackImages(scale, imgArray):
rows = len(imgArray)
cols = len(imgArray[0])
rowsAvailable = isinstance(imgArray[0], list)
width = imgArray[0][0].shape[1]
height = imgArray[0][0].shape[0]

if rowsAvailable:
for x in range(0, rows):
for y in range(0, cols):
if imgArray[x][y].shape[:2] != imgArray[0][0].shape[:2]:
imgArray[x][y] = cv2.resize(imgArray[x][y], (width, height), None, scale, scale)

if len(imgArray[x][y].shape) == 2:
imgArray[x][y] = cv2.cvtColor(imgArray[x][y], cv2.COLOR_GRAY2BGR)

imageBlank = np.zeros((height, width, 3), np.uint8)
hor = [imageBlank] * rows
for x in range(0, rows):
hor[x] = np.hstack(imgArray[x])

ver = np.vstack(hor)
else:
for x in range(0, rows):
if imgArray[x].shape[:2] != imgArray[0].shape[:2]:
imgArray[x] = cv2.resize(imgArray[x], (width, height), None, scale, scale)

if len(imgArray[x].shape) == 2:
imgArray[x] = cv2.cvtColor(imgArray[x], cv2.COLOR_GRAY2BGR)

hor = np.hstack(imgArray)
ver = hor

return ver


img = cv2.imread('resources/1.png')
imgGray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)

imgStack = stackImages(0.5, ([img, imgGray, img],[img, img, img]))

cv2.imshow("imageStack", imgStack)
cv2.waitKey(0)

its letting me import cv2 anyone else having this issus?

You are AMAZING!

Wonderful video course! Initially, some of the corners did not order properly for me. I resolved the problem by removing the already assigned upper left and lower right corners before calculating the diffs of the remaining points. Here is my code:

def reorder(myPoints):
myPoints = myPoints.reshape((4,2))
sumValues = myPoints.sum(1) # sum the points

newPoints = np.zeros((4, 1, 2), np.int32) # ordered points
newPoints[0] = myPoints[np.argmin(sumValues)] # upper left corner
newPoints[3] = myPoints[np.argmax(sumValues)] # lower right corner

remainingPoints = np.delete(myPoints,[np.argmin(sumValues),np.argmax(sumValues)],axis=0)
diffValues = np.diff(remainingPoints, axis=1) # diffValue = y (vertical) - x (horizontal)
newPoints[1] = remainingPoints[np.argmin(diffValues)] # upper right corner
newPoints[2] = remainingPoints[np.argmax(diffValues)] # lower left corner

return newPoints

Are you open for coop projects?

Bro,please post the video of tomato leaf disease detection using opencv

i dont know y im getting error to creating trackbar ,which showing
cv2.resize("TrackBars",40,40)
cv2.error: OpenCV(4.7.0) :-1: error: (-5:Bad argument) in function 'resize'
> Overload resolution failed:
> - src is not a numpy array, neither a scalar
> - Expected Ptr<cv::UMat> for argument 'src'

Stack Function --->

def stackImages(scale,imgArray):
rows = len(imgArray)
cols = len(imgArray[0])
rowsAvailable = isinstance(imgArray[0], list)
width = imgArray[0][0].shape[1]
height = imgArray[0][0].shape[0]
if rowsAvailable:
for x in range ( 0, rows):
for y in range(0, cols):
if imgArray[x][y].shape[:2] == imgArray[0][0].shape [:2]:
imgArray[x][y] = cv2.resize(imgArray[x][y], (0, 0), None, scale, scale)
else:
imgArray[x][y] = cv2.resize(imgArray[x][y], (imgArray[0][0].shape[1], imgArray[0][0].shape[0]), None, scale, scale)
if len(imgArray[x][y].shape) == 2: imgArray[x][y]= cv2.cvtColor( imgArray[x][y], cv2.COLOR_GRAY2BGR)
imageBlank = np.zeros((height, width, 3), np.uint8)
hor = [imageBlank]*rows
hor_con = [imageBlank]*rows
for x in range(0, rows):
hor[x] = np.hstack(imgArray[x])
ver = np.vstack(hor)
else:
for x in range(0, rows):
if imgArray[x].shape[:2] == imgArray[0].shape[:2]:
imgArray[x] = cv2.resize(imgArray[x], (0, 0), None, scale, scale)
else:
imgArray[x] = cv2.resize(imgArray[x], (imgArray[0].shape[1], imgArray[0].shape[0]), None,scale, scale)
if len(imgArray[x].shape) == 2: imgArray[x] = cv2.cvtColor(imgArray[x], cv2.COLOR_GRAY2BGR)
hor= np.hstack(imgArray)
ver = hor
return ver



Thank You Sir for this amazing tutorial !!!

where is the haarcascade_frontalface_default.xml?

The hand on slides just distracts me

how to add missing references for cv2 in pycharm?

Why when I type "img=cv2." python doesn't call this same list of functions that appears in the tutorial? for me the functions "imread" and "imshow" do not appear. Note: I correctly entered the command "import cv2" and also tested if it was loaded. Thanks

Murtaza, realy realy realy thank you.

Can u please make a project on emotion detection using opencv

Thank you for your tutorial on OpenCV with python. I am usually working in C# VS and I would LOVE to have a tutorial in real time quad (four independent ROI's) for SFR (Spatial Frequency Response). This can be used for an EVK / Dev-Kit image sensor with lens looking at a slanted edge target (B/W) on optical axis. Essentially, it is recognizing the slanted edge gradients and since this is slanted, it reduces pixel (imager side) noise due to the diagonal cross section of how the ROI's read the edges. Mind you that each ROI will have real time MTF readings on all four sides. so 16 total MTF values which can be updated ~ 1.5 seconds. This is well know in online GUI apps and I do not want to utilize their approach. So Something fresh from you would be outstanding to say the least. This should be less in complexity compared to facial recognition but I thought I ask you please.

If I want to connect to an industrial camera using TCP/IP protocol, how will I do it?

I am 11 years old I am looking for the functions that you are referring but I can't find

السلام عليكم ...Excuse me ...mr .murtaza .i work to learn computer vision and its my first time .i learn with your videos and work as you do but still show to me mistake and i can't solve it please help me

des anyone know how to solve pycharm not detecting our caméra? :( Cant make it even w google

hey how did yoou get that intellisense type suggestion for opencv....it doesn't seem to work on my pycharm

What to do if while using pycharm I'm not get the suggestions of types that a particular function have, e.g if I want image binary, or binary inverse, i don't get the types, and need to Google it always😬

Sir may I know please where do you live?

kindly tell me why code completion is not working for opencv ? when i have robotframework-seleniumLibrary?

Ok, does anybody know the name of the girl with the hat, who appears in the first few seconds? thanks.