How to fill bounding boxes in image?

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.

Answer 1

[parth pandya]

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;

[matlab22]

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);