Comments on: OpenCV: adding two images

By: Roe

Roe — Tue, 08 Nov 2011 04:49:44 +0000

Hello ^^
Do you think it would work for this?

IplImage** images;

i:0→N
cvAdd(result, images[i], result, NULL);

By: Ben

Ben — Fri, 07 Oct 2011 20:00:19 +0000

Hi,

This post was very useful. I just wanted to know if you have two (or more) images of the moon and you wanted to find the best added average image of it. How would you go about this?

Thanks

By: Leslie

Leslie — Tue, 30 Aug 2011 01:29:46 +0000

Extremely useful thank you very much

By: bastidererste

bastidererste — Sun, 15 May 2011 12:30:43 +0000

works fine on static images… but if i use it on a camera image my memory gets filled very fast. any ideas?

By: Lewis Christie

Lewis Christie — Thu, 10 Feb 2011 12:50:35 +0000

mashhur: what about adding two different sized images? let’s assume I have 2000×1000 sized a gray scaled image and wanna add 100×200 new image. Could you please solve it?

Hi, the way to achieve this is to set the Region of Interest (ROI) of the larger image to a square the size of the smaller image. cvSetImageROI takes two arguments, the first is the image you are chainging the ROI on, the second is a cvRect. When creating a cvRect, the first two arguments are the location of the rectangle and the second two are the dimensions. So for your situation you would create a cvRect with the dimensions 100x200 and the location you want to add to. Now that the ROI has been changed, you can add the smaller image to the larger. After adding, just call cvResetImageROI on your large image and you can work with it as normal.

By: Silveira Neto

Silveira Neto — Mon, 27 Sep 2010 02:42:00 +0000

Try putting the small into the biggest.

By: mashhur

mashhur — Mon, 27 Sep 2010 01:58:38 +0000

what about adding two different sized images?
let’s assume I have 2000×1000 sized a gray scaled image and wanna add 100×200 new image. Could you please solve it?

By: marcos

marcos — Wed, 11 Aug 2010 13:22:05 +0000

ola num consigo usar de maneira correta o cvAdd
ele compila mas na hora de executar ele trava o executavel…
eu uso o visual 2010
por favor me ajude
:^D