I want to get the contour of only red bird in the image

Question

muhammad choudhry 2020-7-15

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https://ww2.mathworks.cn/matlabcentral/answers/565394-i-want-to-get-the-contour-of-only-red-bird-in-the-image

评论： muhammad choudhry 2020-7-15

采纳的回答： Cris LaPierre

birds.jpg

在 MATLAB Online 中打开

Hi,

Can any one help, I want to see the contour of birds and then separately contour of red colour bird in the image only. Image attached!

I have tried to get the contour but getting this error.

Code:

I = imread('birds.jpg');
imshow(I)
I0 =rgb2gray(I);
imshow(I0)
figure;
imcontour(I0,2)

Error:

Error in imcontour (line 44)

contour(x,y,a,extra_args{:});

Error in contour (line 9)

imcontour(I0,2)

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Cris LaPierre 2020-7-15

What version of MATLAB are you using? I ran your code and did not get any errors.

muhammad choudhry 2020-7-15

screenshot.png

Please see the screenshot, still getting the error.

version 2020

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Answer 1

Cris LaPierre 2020-7-15

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/565394-i-want-to-get-the-contour-of-only-red-bird-in-the-image#answer_466103

编辑：Cris LaPierre 2020-7-15

Change the name of your file to something other than contour. Then in the command window, type clear contour and press enter.

Contour is the name of a MATLAB function that is used in lmcontour. However, due to MATLAB's precedence, it is using your script instead, causing the error.

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muhammad choudhry 2020-7-15

contourImage.jpg

Hi,

Thanks it resolve the first problem I am getting contours of every bird in the image. Second issue is I only want the contour of red bird (2nd one from the left) is there any way I pick up the colour from red bird and gives the command in the code in which it will only capture the red bird contour.

Thanks.

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I want to get the contour of only red bird in the image

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