How to combine image with mask
21 ビュー (過去 30 日間)
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hi , i read a image and want combine with mask that contain a line on it , i make a mask but i can't combine a image and mask that show line on the reading image
im=imread('apple.jpg');
mask=255*zeros(size(im));
mask=insertShape(mask,'line',[50 50 250 250],'linewidth',10,'color',[255 255 0]);
mask=uint8(mask);
subplot(1,3,1);
imshow(im);
title('original');
subplot(1,3,2);
imshow(mask);
% how to combine im and mask
% im3 = combine(im , mask)
subplot(1,3,3)
imshow(im3);
title('combine')
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/159548/image.jpeg)
how can i do this and show line mask on original image?
0 件のコメント
採用された回答
Walter Roberson
2017 年 1 月 6 日
im3 = im;
im3(mask ~= 0) = mask(mask ~= 0);
3 件のコメント
Image Analyst
2017 年 1 月 6 日
This burns it into the image. If you just want the line in the overlay above the image without altering the image at all, use plot() or line().
その他の回答 (2 件)
Changoleon
2017 年 1 月 6 日
編集済み: Walter Roberson
2017 年 1 月 6 日
im=double(imread('autumn.tif'));
red = im(:,:,1);
gre = im(:,:,2);
blu = im(:,:,3);
mask=255*zeros(size(red));
mask=insertShape(mask,'line',[50 50 250 250],'linewidth',10,'color',[255 255 0]);
mask_red = mask(:,:,1).*red;
mask_gre = mask(:,:,1).*gre;
mask_blu = mask(:,:,1).*blu;
Negesse Tadesse
2019 年 9 月 1 日
can i get split the image from the mask again? here what i want is masking rgb to gray and compress using LZW. please
0 件のコメント
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