Error in deploying and generting C code this code in Jetson nano

Question

Abdussalam Elhanashi 2020-9-4

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/588904-error-in-deploying-and-generting-c-code-this-code-in-jetson-nano

回答： Sarvani Panguluri 2020-9-10

Hi

I have errors when deploying this code in jetson nano. However it is running fine in MATLAB script

function yolo2detectobject()
%#codegen
%Copyright 2020 - 2020 The MathWorks, Inc.
%Load the pre-trained car  detection network
persistent yolov2Obj;
if isempty(yolov2Obj)
        yolov2Obj = coder.loadDeepLearningNetwork('detectorYolo2.mat');
end
hwobj = jetson;
w = camera(hwobj,"vi-output, imx219 6-0010",[1280 720]);
d = imageDisplay(hwobj);
fps = 0;
avgfps = [];
cont = true;
while cont
    % Capture the image from the webcam on hardware.
   I = snapshot(w);
    I=imresize(I,[224 224]);
Height=224;  
Width=224;  
Threshold = 0.2* (Height +Width);   
   
    % Run the detector on the input test image
     tic;
    [bboxes, scores, ~] = detect(yolov2Obj, I,'Threshold',0.22);
     newt = toc;
% fps
fps = .9*fps + .1*(1/newt);
avgfps = [avgfps, fps]; %#ok<AGROW> 
        cars = size(bboxes, 1); 
   if  car == 1
        valColor = 0; % means we have one car so the color is green
    elseif cars >= 2
        valColor = findColor(bboxes,Threshold); 
    end
    
    for ii = 1 : size(bboxes, 1)
      
        if valColor(ii) == 0 % to find out number of boxes
            showColor = [0 255 0];    % in case one car
        else
            showColor = [255 0 0];   % in case two cars or more
        end
    end
    
    
    % Insert bounding box to test image
    if isempty(scores) == 0
    I = insertObjectAnnotation(I, 'rectangle', bboxes,scores, 'linewidth',3,'color',showColor);
    % Display output on the target monitor
    end
    I  = insertText(I , [1, 1],  sprintf('FPS %2.2f', fps));
        image(d, I);
end
end
  function showColor = findColor(bboxes,Threshold)  
   % First index represents x value of starting top left point
   % Second index represents y value of starting top left point
   % Third index represent width of the bounding box
   % Fourth index represent height of the bounding box
   cars = size(bboxes, 1);
           showColor = zeros(1,cars);  % Default color green i.e. 0
   % Loop through all car pairs and set color red i.e. 1 if < threshold
   for i = 1:cars-1 
      for j = i+1:cars
        p1 = bboxes(i,:);
        p2 = bboxes(j,:);
        x1 = p1(1) + p1(3)/2; % First x value
        x2 = p2(1) + p2(3)/2; % Second x value
        y1 = p1(2) + p1(4)/2; % First y value
        y2 = p2(2) + p2(4)/2; % Second y value
        % Calculating distance between the centres of these bounding boxes
        dist = sqrt((x2 - x1)^2 + (y2 - y1)^2);
        % Change threshold value from the top of the code
        if dist < Threshold
            showColor([i,j]) = 1;
        end
     end
  end
    
    end 

and i got these errors while deploying

>> codegen('-config ', cfg,'yolo2detectobject', '-report');
??? Variable 'valColor' is not fully defined on some execution paths.
??? Variable ' showColor' is not fully defined on some execution paths.
Code generation failed 