0 个投票

I am trying to create a 256X256 image that starts out blue on the left hand side and scales down by one index every column so that it is black on the right side, kinda like in this picture but opposite direction but I cannot get this code to preform. How can I achieve this? Is there also a way to do this vertically as well, ie, blue on top scaling down to black on the bottom?
image(:,:,1)= zeros(256,256,1);
image(:,:,2)= zeros(256,256);
for i=1:256
image(i,:,3)= [255:-1:0];
end
image=image/255;
imagesc(image)

请先登录，再回答此问题。

 采纳的回答

Walter Roberson
Walter Roberson 2016-10-2

0 个投票

Blue_image = zeros(256, 256, 3, 'uint8');
Blue_image(:, :, 3) = repmat(255:-1:0, 256, 1);
Please avoid using image as a variable name, as it is the name of an important MATLAB routine to display images.

1 个评论
显示 -1更早的评论 隐藏 -1更早的评论

PenguinForce
PenguinForce 2016-10-2
Thank you! I did not know that about the image variable name but thank you for letting me know! I appreciate your time

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Images 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