Legacy ImageMagick Discussions Archive

ok... I got it.

It is working, man! I am pretty much there... I will share what I got here later...

Ok! thank you for your patience!

Actually I also want the *.png output.

Ok... I will check that. Now I am facing another issue: When I do the following in PHP, $compara is null: $compara=shell_exec("compare -fuzz 5% -metric AE /home/".$key."/".$dir[$key]."/".$average." ".$imagem_atual." s_".$key."_".date("Y_m_d-H_i_s").".png"); How could I get the average value that is ...

You are right. I understand perfectly that. However, JPG is the way these D-Link cameras save their images. So I need to find some way to deal with the information I have within the jpg format. Right now I am using the -fuzz filter. I wonder if there could be something better? Moreover, now I am ...

A quick test I just did: If I add -fuzz 8% to compare, as follows: compare -fuzz 5% -metric AE r1.png r2.png s1.png the result is that I get "zero" as a numerical indication of how close the images are (the images are almost identical). But this seems a bit artificial for me... Isn't there a way to ...

Note that you previously suggested to substitute "compare" by "convert -compose difference" convert r1.png r2.png -compose difference -composite s1.png But in this case, I am not able to use -metric AE, which is important for me. If I include -metric to the convert command, it doesn't show the ...

I am still facing issues related to the "lossy" characteristic of "jpg" images. I had two original jpg files: r1.jpg and r2.jpg. I converted those to png using the following command: convert r1.jpg r1.png convert r2.jpg r2.png This is the r1.png file I got: [img] http://i1039.photobucket.com/albums ...

Not very easy to find documentation on -evaluate-sequence.

I tried -list evaluate, but it gives only a list of reserved words, with no explanation.

Ok...

I will not use -average.

Regarding the jpg/png issue, my camera generates jpg. Converting jpg to png would be enough? Is IM capable of doing this conversion?

Funny... I am testing IM with regard to averaging images. I did the following: convert origin.jpg -verbose -average media.jpg compare -metric AE media.jpg origin.jpg teste.jpg I got a very large number as a result for the comparison: 41965 It makes no sense, right? The file teste.jpg also shows a ...

In order to test that I need to discover how to trigger a ftp upload from the camera using PHP. If I set the camera to upload periodicaly, my WIFI will be jammed. I need to combine motion triggered upload with a few periodical uploads, triggered by my server. D-Link cameras have no documentation on ...

I am considering to use something like:

I finally tried the technique you proposed, that is, using connected components to separate the different features. It works, but there is something I forgot to tell you: I have a streaming of images. The camera is already set for detecting movement, and it keeps sending images to the server for ...

I was reading the nice tutorial of Fred Weinhaus on Fourier Transforms:

www.imagemagick.org/Usage/fourier/#fourier_transform

It is very clear, but I didn't catch was what is the difference between +ift/+fft and -fft/-ift.

Thanks!

I used the following way:

viewtopic.php?t=24284