show image independently

i was building a program for capturing image from webcam, and show it using imshow(image) but suddenly after the image is captured, the image is shown in the part of gui, what i mean is to show the image independently, help me guys! thx!

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Jan
Jan le 21 Oct 2011

0 votes

imshow displays the image in the current AXES-object. I assume "showing the image independently" means to display it in a new figure. Then:
newFigureH = figure;
newAxesH = axes('Parent', newFigureH);
imshow(rand(100, 100, 3), 'Parent', newAxesH);

7 commentaires

Izzo
Izzo le 21 Oct 2011
yes you got what i meant, but when i comitted the code it's shown this error:
??? Error using ==> axes
Invalid object handle
Error in ==> file at 61
newAxesH = axes('Parent', newFigureH);
Jan
Jan le 21 Oct 2011
And why is newFigureH invalid? Did you insert the "newFigureH=figure" line above? Did you close the new figure?
Izzo
Izzo le 21 Oct 2011
i don't know, i assume 'figure' is the image right? maybe if you know simpler code
Image Analyst
Image Analyst le 21 Oct 2011
How can you not know? Do you have that line or not? Yes or no? That line creates a brand new, separate figure window. You need that, so look for it!
Izzo
Izzo le 22 Oct 2011
yes i have that line of course, but i dont know why the axes is invalid
here is my code
newFigureH = img;
newAxesH = axes('Parent', newFigureH);
imshow(rand(100, 100, 3), 'Parent', newAxesH);
img is the image that i want to show
Walter Roberson
Walter Roberson le 22 Oct 2011
No, Izzo, where Jan showed "figure" you require a figure number, and cannot use an image handle. An image is a single bit-mapped drawing such as a photograph, and cannot contain any other objects (except an annotation object.)
If img is the image you want to show, then you need to adapt Jan's example to
newFigureH = figure;
newAxesH = axes('Parent', newFigureH);
imshow(img, 'Parent', newAxesH);
Izzo
Izzo le 22 Oct 2011
right it works! thank you very much for you guys help

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