trackbar | Yet another time-tracker application | REST library

The problem I have it is:

I tried to download 1000+ images -> it works, but it takes a very long time to load the image downloaded completely, and the program continues and downloads the next image etc... Until let's admit 100 but the 8th image is still not finished downloading.

So I would like to understand why I encounter such a problem here and / or how to fix this problem.

Hope to see an issue

I am making a basic lunar lander program in visual basic using windows forms. I have a track bar to adjust thrust. I am also using WASD to control the landers direction. WASD works fine if I haven't used the track bar to adjust the thrust. But the moment I adjust the thrust the trackbar becomes selected and I cannot use the WASD keys anymore. What do I need to do to fix this issue?picture of program

I would like to detect this gate below, ideally the entire gate. I have played around for hours with a trackbar script but I am just not finding the right color space. I found other threads that just track yellow and not even that is working.. This is my code:

I'm trying to make a sorting program with Windows Forms. The goal is to allow the user to create an array by taking a value from a trackBar that determines the size of the array. For example, if the trackbar value is set to 100, then the user would press the "Create Array" button, which would then generate an integer array with 100 numbers that are random and then display them on a Chart.

Then, the user would press another button to actually sort the array. However, because the array is defined in the scope of the button that actually creates the array, I don't know how to get it into the scope of the button that sorts it. After it is sorted, I want to keep the array sorted, so it needs to be changed on a global level.

I tried to define the variable on a class level within the Form1: Form class and have each control return a value, which would update the value for the array, but that doesn't work because my project doesn't have a static void Main() function, and I'm not sure how to implement that into Windows Forms with my current minimal knowledge of the program.

Code example is below:

Context:

We are building a robot that will be assigned a color of puck to pick up and will need to go grab it. So for that, from the world view camera, he will get the approximate coordinates.

I first used HoughCircles to find the centers of each circles, but then i realized that i would also need to know the colors of corresponding circles found, so i tried an other approach ( see below).

Note: circles will be placed randomly, no no hardcoding.

Here's whats the image looks like :

Problem:

Very hard to get accurate HSV value to correctly detect the colors in the title, plus the image quality is not the best. I think the middle circle in those pucks is to help us distinguish them but as most have a light blue circle in it, im not sure how it helps haha.

What i tried:

1.

I used openCV trackbar, to get the approximate lower and upper bound for each color ( except those mentioned) which are really hard to get).

2.

I apply the mask on the picture and then find the center of circles with moments.

I am pretty new to OpenCV and am trying to achieve drawing simple contours along the outline of my hand using a webcam. I decided on using cv2.adaptiveThreshold() to deal with the different light intensities when the camera adjusts to the hand moving. Everything seems to work fine except that it is struggling with finding the fingers and then also drawing closed contours. See here:

I thought about trying to detect a convex hull and detect anything deviating from it somehow.

How do I go about this best? Firstly I need to manage to maybe not find weird closed contours and then go from there?

Here's the code, I fixed the trackbar values for you :)

I am still new to OpenCV(Python) and am trying out cv2.adaptiveThreshold() to draw proper contours with a webcam running when lighting is changing. The main problem is the insane amount of noise I am getting when drawing contours so I tried to set a cv2.countourArea() threshold but this seems not like the best solution.

Later on I deciced to try and manipulate the values of cv2.adaptiveThreshold with a simple trackbar.

Specifically the blockSize and CValue. Everything works fine on the CValue but I do really struggle on the blockSize since it needs to be an odd number. I tried something along the line of checking if the value of the empty callback function is even and adding +1. But this does not seem to work properly. Later on I will most likely use machine-learning to change these values but for now I'd like the trackbars to work for debugging purposes.

What is the best solution here to manipulate the blockSize with a trackbar?

Thank you in advance! :)

I am trying to save the image modified by the trackbar. When I try to save it (using imwrite), it only saves the image before it has been modified by the trackbar. Not shown in the following code, but I have tried using imwrite in the foo function which did not work. I also tried returning the image and the getTrackbarPos from the foo function, but both values were the unmodified inputs.

I want my UserControl (at the middle-top in the image) to lose focus when I click outside of it, anywhere.

I have tried this: