How to Create Alternating Black Columns Across an Image?

6 次查看（过去 30 天）
Richard Zareck
Richard Zareck 2017-9-10
评论： Jose Marques 2017-9-10
I have an image X and I would like to create black columns going across the image that are 16 pixels thick with a distance of 16 pixels between each column and I have no idea how to do this. The best I could do was make one column using this line of code:
X(:,1:16,:) = 0;
Also I am not allowed to solve the problem using loops.

请先登录，再回答此问题。

采纳的回答

Jose Marques
Jose Marques 2017-9-10
Hello Richard! You can try this:
size_of_column = 16;
img = imread('image_exemple.jpg');
imshow(img);
mask = zeros(size(img));
for i=1:size(mask,2)
if(mod(round(i/size_of_column),2) == 1)
mask(:,i,:) = 1;
end
end
figure();
img_final(:,:,:) = uint8(double(img(:,:,:)).*mask(:,:,:));
imshow(img_final)
The result:
  6 个评论
显示 4更早的评论

请先登录，再进行评论。

更多回答（1 个）

Walter Roberson
Walter Roberson 2017-9-10

类别

在 Help Center 和 File Exchange 中查找有关 Image Arithmetic 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by