Re: Image processing Questions
- To: mathgroup at smc.vnet.net
- Subject: [mg110580] Re: Image processing Questions
- From: Matthias Odisio <matthias at wolfram.com>
- Date: Sat, 26 Jun 2010 03:11:51 -0400 (EDT)
Robert,
On 6/25/10 6:26 AM, Robert Pigeon wrote:
> Hello to all,
>
> I have two questions related to image processing.
>
> First question : I have some pictures taken with my digital camera and on
> the pictures I have the date in red numbers on them. I would like to erase
> those numbers from the pictures. I tried the procedure described on Wolfram
> web site about image processing (Removing text from an image). But it is
> not working and I don't know why. Maybe some of you are doing it and could
> share with me the procedure ?
>
What exactly did you try? If you could point to an example that would be
easier to help.
> Second question : I take a portion of an image using ImageTake. I do some
> processing on that portion. Now I would like to put back that portion in the
> original image. How can I do that? It would be like the inverse of
> ImageTake... Any idea?
>
Assuming the portion you take has its top left corner at {r1, c1}:
sub = ImageTake[img, {r1, r2}, {c1, c2}]
new = ImageCompose[img, sub, {Left, Top}, {r1, c1}]
Matthias Odisio
Wolfram Research