getframe() resizing capture issue

rgk134

2012 5 10

0 个回答

3 次查看（30 天）

0 个投票

So I am trying to use getframe() to capture a plot of an image and then use that image later as a filter. I have found that if I run this on images over a certain dimension, even though the image is still able to display 100% in the figure window, the getframe() command captures a smaller display than is shown (as given by the cdata matrix). Any help?

close all
figure(1),imshow(im2bw(image_v2,1),'InitialMagnification',100), truesize, hold on, scatter(x,y,30,'ws','MarkerFaceColor',[1 1 1]);
imagemask = getframe();
rgb = imagemask.cdata(:,:,1);
figure(2),imshow(rgb);
dimensions = size(rgb);
rgb(dimensions(1),:)=[];
rgb(:,dimensions(2))=[];
dimensions = size(rgb);
for i = 1:dimensions(1)
    for j = 1:dimensions(2)
        if rgb(i,j)==255
            rgb(i,j)=1;
        elseif rgb(i,j)==1
            rgb(i,j)=0;
        end
    end
end
figure(4), imshow(rgb)
image_filtered = image_v2.*rgb;
figure(3),imshow(image_filtered);

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Walter Roberson 2012-5-11

Could you be more specific about the size limits you are encountering? Also which OS are you using, which MATLAB version, and what monitor size are you using? What does

get(0,'ScreenSize')

show? Also, do you happen to be using multiple monitors?

请先登录，再进行评论。

请先登录，再回答此问题。

Follow Question