Search found 9 matches

by lego
2012-11-28T04:51:24-07:00
Forum: Users
Topic: Object identification in an image
Replies: 9
Views: 20213

Re: Object identification in an image

THANK YOU so much to all of you!! This script works very good for the image I posted... and the procedure it uses would have never occured to me (maybe because I don't know anything about image processing) however, if I have a slightly different image, it doesn't seem to work: I attach an example of...
by lego
2012-11-23T09:11:39-07:00
Forum: Users
Topic: Object identification in an image
Replies: 9
Views: 20213

Object identification in an image

Hi, I apologize since I have no idea of image processing, but I need to extract information from some images... let's see if someone can help me. I have thousands of images similar to this one: http://i50.tinypic.com/mt6nft.jpg This image is scaled down by 25%, the real images have a resolution of 2...
by lego
2011-09-16T03:25:30-07:00
Forum: Users
Topic: Composing multiple images
Replies: 8
Views: 15750

Re: Composing multiple images

Thanks for that information, for the moment I will use the min method, when I have some time I will take a look at those other methods.
Thank you!
by lego
2011-09-15T01:58:38-07:00
Forum: Users
Topic: Composing multiple images
Replies: 8
Views: 15750

Re: Composing multiple images

Thank you!!! Well I didn't had motorcycle photos, this was just an example in order to express my problem. I tried with convert img1 img2 img3 img4 ... -evaluate-sequence mean img-final but the images looked faded, but with convert img1 img2 img3 img4 ... -evaluate-sequence min img-final the result ...
by lego
2011-09-14T08:45:15-07:00
Forum: Users
Topic: Composing multiple images
Replies: 8
Views: 15750

Composing multiple images

Hi, I don't know how to solve my problem.. I have no idea of image manipulation.. sorry. Probably it' very easy for most of you! Suppose that I have a photo camera that can take photos every 0.5 s, and I photograph a jump of a motorcycle. Suppose that the jump lasts 3 seconds, so I have 6 images. I ...
by lego
2010-04-13T14:17:43-07:00
Forum: Users
Topic: Removing noise
Replies: 7
Views: 16635

Re: Removing noise

Thank you so much! You gave me some great ideas of convert options that I can use, I will be playing with -lat, -threshold, and separation of channels, together with the isonoise script by fmw42, until I found the best result for me. Probably I will try to change the contrast and/or brightness befor...
by lego
2010-04-13T09:49:27-07:00
Forum: Users
Topic: Removing noise
Replies: 7
Views: 16635

Re: Removing noise

It's very good in removing noise, thank you for your suggestion.
Do you know how can I catch the liquid shape? (with or without noise)
by lego
2010-04-13T09:00:42-07:00
Forum: Users
Topic: Removing noise
Replies: 7
Views: 16635

Re: Removing noise

Thank you for your reply. I attach two consecutive frames (I uploaded it to tinypic because it's the only way I know to attach images in this forum), so you can see the noise: http://i39.tinypic.com/1zx8jrs.jpg http://i41.tinypic.com/1zoayab.jpg I would like to catch the shape of the liquid as close...
by lego
2010-04-13T03:52:18-07:00
Forum: Users
Topic: Removing noise
Replies: 7
Views: 16635

Removing noise

Hi, I have a digital movie with a lot of noise, which appears as many colored pixels. The movie is a high-speed movie and has about 8000 frames, which I can extract, for example, by running "mplayer -vo jpeg movie.avi". I was wondering that maybe if I could separate the black parts from th...