Hi,I am working for a project about image processing with arduino.Capturing video from webcam and tracking its colour,matlab will send data to arduino.I've done colour tracking and sending data to arduino separately.Now I wanna do this simultanously.The problem is in sending data.
I am using fprintf function sending data.When i press a character it sends data to arduino.I also used fwrite function, it gives this error _
??? Undefined function or method 'combination_not' for input arguments of type 'char'.
Required logic is to send data when it track the "RED" image.How it can be written.My code is given bellow.Help me please....
%a = imaqhwinfo;
%[camera_name, camera_id, format] = getCameraInfo(a);
%arduino communication setup
arduino=serial('COM7','BaudRate',9600); % create serial communication object on port COM4
fopen(arduino); % initiate arduino communication
% Capture the video frames using the videoinput function
% You have to replace the resolution & your installed adaptor name.
vid = videoinput('winvideo',1);
% Set the properties of the video object
set(vid, 'FramesPerTrigger', Inf);
set(vid, 'ReturnedColorspace', 'rgb')
vid.FrameGrabInterval = 5;
%start the video aquisition here
% Set a loop that stop after 100 frames of aquisition
% Get the snapshot of the current frame
data = getsnapshot(vid);
% Now to track red objects in real time
% we have to subtract the red component
% from the grayscale image to extract the red components in the image.
diff_im = imsubtract(data(:,:,1), rgb2gray(data));
%Use a median filter to filter out noise
diff_im = medfilt2(diff_im, [3 3]);
% Convert the resulting grayscale image into a binary image.
diff_im = im2bw(diff_im,0.18);
% Remove all those pixels less than 300px
diff_im = bwareaopen(diff_im,300);
% Label all the connected components in the image.
bw = bwlabel(diff_im, 8);
% Here we do the image blob analysis.
% We get a set of properties for each labeled region.
stats = regionprops(bw, 'BoundingBox', 'Centroid');
% Display the image
%arduino data send
fprintf(arduinoCom,'%i',sendData); %this will send 5 to the arduino
fclose(arduino); % end communication with arduino
%This is a loop to bound the red objects in a rectangular box.
for object = 1:length(stats)
bb = stats(object).BoundingBox;
bc = stats(object).Centroid;
a=text(bc(1)+15,bc(2), strcat('X: ', num2str(round(bc(1))), ' Y: ', num2str(round(bc(2)))));
set(a, 'FontName', 'Arial', 'FontWeight', 'bold', 'FontSize', 12, 'Color', 'yellow');
% Both the loops end here.
% Stop the video aquisition.
% Flush all the image data stored in the memory buffer.
% Clear all variables
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