Detecting color with Python and OpenCV using HSV colorspace | Computer vision tutorial

#computervision #opencv #colordetection

[ComputerVisionEngineer]

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[Lux]

This is so perfectly what I was looking for. Thank you so much! Might enable me to build a great production inline measurement system for "a penny".

[kiitanayandosu-ugpe]

This was such an amazing tutorila thank you so much!

[John-xiim]

superb tutorial, very informative and mind blowing!!

[drushtiladhani]

hey
i am getting error in this line
hsvImage = cv2.cvtColor(imageFrame, cv2.COLOR_BGR2HSV)
please tell me how to solve
cv2.cvtColor- in this

[ethaninfante]

Is there a way to display an array at the center of the webcam and if a certain color gets in that array it will send some sort of signal to a mechanism?

[ecsyntric]

this is better than pysource tutorial. how is it that all spanish guys are experts in CV? :)

[selamushirtawi]

i am facing the following error


cv2.error: OpenCV(4.6.0) error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'

[MrRunFun]

How can I use my elgato capture card as the capture, I've tried looking everywhere?

[whlau]

Thank you! It is so concise! May I know could this be further refined to detect objects based on the criteria like shape (eg rectangle in different orientation) and size (eg pixel x pixel)? Thanks!

[dwaipayansarkar]

In the get limits function

c = np.uint8([[yellow]])
is throwing error

[nikolaiownz]

Can you do a tutorial on how to regognise light a few colors light and the maybe log in into a excel for data to use. i want to make a uptime logger for my cnc machines

[F_TheBear]

did someone know the RGB value for grey things (type road, circuit, ...)

[finnthehuman]

Hi, is that possible to add multiple boundary /square frame thingy to detect multiple object ?

[_Garm_]

like it, really cool video.. the kicker for me was the "BRG" .. it really confused me for a while.. was experimenting with the values there.. was trying to read the color of a led which i thought was green but was more white:ish with a green halo haha, is it possible to detect more colors at the same time ?

[vlrfomn]

Hi how can i connect the system to the alarm system specifically a buzzer while using a laptop camera for the video capturing, hope you will assist me

[sanikashelke]

instead of that i want the code to analyse the colour of my face, can you please guide??

[borallylyl]

Hello, I'm trying to create a program that detects and counts objects by color, but now I can only count four colors, these are red, blue, green and yellow. I wonder if I can add the whole color scale to the program, how can I do this? I will be very happy if you give back. have a nice day😊

[RishiKumar-vbfy]

Can we make something where camera detects the colour in traffic light and tells what colour is the light and it will assist the colourblind people if they are confused. Blinking yellow and blinking red is tough for them. It may be a good project.

[DubinaStudio]

I'm thinking of a device in the form of a video camera. This device will consist of a RaspberryPi, a camera module and display. This device will demonstrate the operation of the program for participation in roboracing. I propose to create a team to work on this project. In the future, it will be possible to participate in the OpenCV AI Competition 2023+n with this project. From Uruguay, you can participate in the competition)