How to fill bounding boxes in image?

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matlab22 2016-5-15

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https://ww2.mathworks.cn/matlabcentral/answers/284298-how-to-fill-bounding-boxes-in-image

评论： matlab22 2016-5-16

How to fill region inside bounding box with white and outside with black i? case of one bbx or many bounding boxes for one image.

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Answer 1

parth pandya 2016-5-16

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https://ww2.mathworks.cn/matlabcentral/answers/284298-how-to-fill-bounding-boxes-in-image#answer_222276

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suppose img is image variable and if you have three dimensional image: bbBOx format is [ X Y Len Wid ]

img( X:X+Len-1, Y:Y+Wid-1, : ) = 0;

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matlab22 2016-5-16

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Thank you very much,i guess =1 not =0 , and i found other solution. for this case:

roi=[2.262763419483102e+02 2.55 11.593499005964213e+01 8.558429423459245e+01];
imgg = zeros(800,800,3);
imgg( roi(1):roi(1)+roi(3)-1, roi(2):roi(2)+roi(4)-1, : ) = 1;
imshow(imgg);

The other solution:

   imgg = zeros(500,500,3);
   img2=insertShape(imgg, 'FilledRectangle', [2.262763419483102e+02 2.55 11.593499005964213e+01 8.558429423459245e+01],'Color', {'white'}, 'Opacity', 1);
   imshow(img2);