ThingSpeak

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I Need a way to code for sending a image from my mobile device to thingspeak and retriveing to the matlab pc.Is there any way to do the code?

I want to fit a circle just like the black line drawn in the figure and trying to find its radius. below is the code i am writing but not getting anything significant. kindly help me how to approch this kind of problems %%---------------------------- matlab code -----------------------------------%% clear all clc % read the image img = imread('gra.png'); % convert the image to grayscale img_gray = rgb2gray(img); % perform edge detection using the Canny algorithm edge_img = edge(img_gray, 'sobel'); % perform hough transform to detect circles [centers, radii] = imfindcircles(edge_img, [10 50000],'ObjectPolarity','bright','Sensitivity', 0.95); % find the largest circle [max_r, max_i] = max(radii); max_center = centers(max_i, :); % plot the results figure; imshow(img); hold on; viscircles(max_center, max_r, 'EdgeColor', 'b'); how to find the radius of a circle from an image image-processing circle fitting hough transformation

I am trying to count cars on a highway using webcam, raspberry pi & Simulink model for data analysis using thingspeak & later using Amazon AWS. The project link, Makerzone Project. I am facing a problem with the Car Counter block in the Simulink model. I have developed a code performing all the operations for the project but I am unable to complete the simulink model from that code. Can anyone help me in modelling the simulink model?

Files that were used in the webinar 'Raspberry Pi based security system using MATLAB and Simulink'

Learn how to use MATLAB to create a cloud based people counter

I am trying to do a project from Thingspeak, the link is Thingspeak Project . The simulink model given in the project contains a ForegroundDetector block which we can not find in the Simulink library browser. So, I concluded that it is a matlab function block containing a ForegroundDetector function. I made a Simulink model to compute the foreground mask & made a similar function block using this code, function fgMask = fcn(image) %#codegen detector = vision.ForegroundDetector(... 'NumTrainingFrames', 5, 'InitialVariance', 30*30); fgMask = step(detector, image); My model is <</matlabcentral/answers/uploaded_files/53832/model.PNG>> The result I get in the Diagnostic viewer is this: <</matlabcentral/answers/uploaded_files/53831/Diagnostic%20Error.PNG>> Here 'TrafficSurveillance' refers to the name of my model. I have reached this very brief code after many edits & cuts with the same problem everytime. Acually the algorithm is large & I want to implement the algorithm using few matlab blocks doing different functions of the algorithm. But this problem is prevalent with the ever short code. When I typed mex -setup in the command window, <</matlabcentral/answers/uploaded_files/53834/mexsetup.PNG>> Is there a problem with my code or the model? How may I implement the project?