siptoolbox-devel — Development and advanced discussion

Re: [SIP-devel] building sip-dev-20031219 from sources

[Ricardo F. <rf...@if...>]

Hi, Jocelyn,

first of all, your card is very nice. The futuristic decoration is
amazing. I wish all the best for you in this year.

About SIP compilation:

On Wed, 24 Dec 2003, DRUEL Jocelyn wrote:

> Hi,
> I already tried several times to build SIP-dev from source, but I always gave
> up because of numerous errors.
>
> Today, I took the time to try it harder.
> I succeded but had several problems: here is what I had to do.
> ...

I use gcc 3.2.3. I have made the changes you needed since it is the
simplest C construct that will work with most compilers.

> 2) When I launched builder.sce from scilab, it told me that the SIMPLE
> toolbox was now installed: it shoumd be changed to SIP (idem with the path
> given: it is written /usr/lib/scilab/contrib/SIMPLE/loader.sce).

The INSTALL.txt file doesn't tell you to execute builder.sce.
This file will not be included in future SIP releases.

thanks again for your information,
Ricardo.

--
  Ricardo Fabbri, Cybernetic Vision Research Group, USP, Brazil.
  WEB: www.rfabbri.kit.net   ICQ: 208974212

Re: [SIP-devel] Merry Christmas

[Ricardo F. <rf...@if...>]

Hi, everybody!
I'm Returning from a very nice vacation to continue developing SIP
and answering my mail.


Alexis,

you may release your toolbox through this list as soon as you wish.

we thank your efforts!
Ricardo.


On Tue, 23 Dec 2003, Alexis Calio wrote:

> I know you was interested on the toolbox, that's the
> reason why I'm writting this to you. I couldn't
> contribute too much to the list because of the exams
> and the time spended on the development of the named
> toolbox.
> I hope I could be of greater help next year! Anyway, I
> didn't missed a mail of the list.
>
>
> I wish you all merry Christmas and a happy New Year!
>

[SIP-devel] poledetection function

[DRUEL J. <joc...@li...>]

Hi,
Still working on phase unwrapping, I discovered problems with noisy images: 
some low quality points cause errors which propaget through the image.

A mean to identify these low quality points is the localisation of poles (or 
residues).

I send you the function (which contains example and references).

This function is usefull with unwrapp.

Best regards
Jocelyn

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[SIP-devel] bug correction in unwrapp

[DRUEL J. <joc...@li...>]

Hi,
I worked on the unwrapp function and discovered that I could not have any 
point in the merit function with a value > 3000.

I fixed it. 

Now, the behaviour is that all points with a merit function >= 3000 will not 
be unwrapped. They'll be simply ignored. 
In the previous version, points with a merit value >= 3000 caused a crash.

This improvemenet was made in conjunction with the function poledetection 
which follows.

Another change is that I don't use anymore the variable named 'shift' which 
conflicted with the same name Sciab function.

Best regards
Jocelyn

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[SIP-devel] Best wishes for 2004

[DRUEL J. <joc...@li...>]

Hi everybody,

I send you a postcard from Lille (north of France) which is the European 
Capital of Culture for 
2004: that's the main avenue redecorated in a futuristic way.

This postcard is to bring you my best wishes for 2004. 
Best wishes also for SIP and Open Source projects.

Best regards
Jocelyn

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[SIP-devel] building sip-dev-20031219 from sources

[DRUEL J. <joc...@li...>]

Hi,
I already tried several times to build SIP-dev from source, but I always gave 
up because of numerous errors.

Today, I took the time to try it harder.
I succeded but had several problems: here is what I had to do.

First, my configuration is: Debain Woody (stable release of debian) with 
kernel 2.4.18; gcc 2.95. Scilab is 2-6.
Due to long cycles in Debian development, some people could consider my 
packages as 'prehistorics' (but Debian seeks stability before all).

So I dowloaded the latest gandalf (1.3.2), animal (0.8.0) and sip (20031219).

I) gandalf compilation:
1) I had to install glutg3-dev (OpenGL develepoment libraries) anfd libtool. 
The debian installer  installed the other packages related to it.
2) ./configure, make, cd TestFrameWork, make, cd .., make install
causes no problem
3) I finished with libtool --finish /usr/local/lib

II) Animal compilation:
1) ./configure, make
error in animal/analysis.c line 786 (function edt_lz)
I solved by puttin the line int i; 
before assert(im->isbianry);
so that declaration of variables are at the beginning of the function.
2) make
This time the error is in src/plist.c lines 23 to 27.
Same soluce: I moved declarations of variables (q*, a, data) just after the 
declaration of the function main
3) make
Error in label_components.c, line 24
I solved by adding nhood nh*; at the beginning of main and transforming the 
line 24 in nh = get_8_nhood();
4) make
This time, it works !
5) make install

III) SIP compilation
1) configure, make
Error line 69 unsigned long npixels = rim*cim;

Again I put unsigned long npixels at the beginning then npixels = rim*cim;

This time it works
2) When I launched builder.sce from scilab, it told me that the SIMPLE 
toolbox was now installed: it shoumd be changed to SIP (idem with the path 
given: it is written /usr/lib/scilab/contrib/SIMPLE/loader.sce).

3) I launched exec(SIPDEMO) and tried the interferometry gui:
error: stacksize(3e7) cannot be used in this context.
I commented the line 37 of macros/interferometry_gui.dem and it worked fine.

4) I could finally enjoy the new SIP-dev version !
(but I had no time to test it fully yet)


Conclusion:
1) the problem was always of the same type: declaration must be made at the 
beginning for my compiler.
2) I send you my modified files
3) SIP is a great project 

Happy Christmas for everyone
Best regards
Jocelyn

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[SIP-devel] Merry Christmas

[<a_...@ya...>]

Hi everyone. Hi Ricardo, thank you for the good
wishes.

I'm happy to tell you that I'm done with my add-on
toolbox for face recognition. I begann working on it
on January this year. 
I didn't thougt it would take me so much time to
accomplish what I've made so far, but it did :-(
All started last year when I recieved a scholarship to
study in Germany, at the RUB University. There, 
at the Institut fuer Neuroinformatik, under the
supervision of Dr. Rolf Wuertz, and together with
another
argentine student (Maria Gabriela Maso) we learned the
basics of Neural networks and how could them be 
applied to the human faces recognition. We learned the
DLM (Dynamic Link Matching) method. After this 
first step we learned an alternative method, the EGM
(Elastic Graph Matching). As we came back to Argentine
we continued working on the creation of a basic
toolbox for face recognition, which uses the EGM
technique.
What's more, we made it our thesis project for
becoming "I.T. Engeneers". We have now an alpha
version that's
been tested in Germany. Once we became feedback we'll
be able to finally launch the beta version over the
internet.
(I hope through the use of this list, if you agree
with that).

I know you was interested on the toolbox, that's the
reason why I'm writting this to you. I couldn't 
contribute too much to the list because of the exams
and the time spended on the development of the named
toolbox.
I hope I could be of greater help next year! Anyway, I
didn't missed a mail of the list.


I wish you all merry Christmas and a happy New Year!


Good bye,


Alexis A. Calio - 
Systems Analist
Argentine Technological University
Rosario - Argentina

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Re: [SIP-devel] function pifilter

[DRUEL J. <joc...@li...>]

>
> Hello,
>
> I have included your pifilter function into SIP-dev, it is working
> fine.
>
> It is interesting that I tested the function on natural luminance images
> messed up with imnoise, option "salt & pepper".
> The result is quite good, because the edges are preserved, more
> so than median filtering, although some noises are not fully eliminated.
>
> The idea of treating a normal intensity image as a phase image seems
> to makes sense in this case. The pi filter will do an adaptive blur
> of the image, with the blur strength somewhat inversely proportional
> to the variance of the data around the mean. The most abrupt
> variation, the weaker the blur. A variation from maximum to minimum
> distributed along the neighbourhood of a pixel will not blur the
> pixel.
>
> If you think this makes sense, the function pifilter will be useful not
> only for photonics images, but for many other noisy images.

Hi,
All right, I think it makes sense. 
In fact, the first time (and only time) I met this filter was in 
documentation about phased images. But it could be used to remove noise in 
other pictures. That's a good idea.

I let you complete the manual page with the explanations above. Is that OK ?


In the function, I hesitated using the function "normal":
I could have written 
a=(inm*2*%pi/255)-%pi;
instead of  a=normal(inm,255,0);

But this causes a problem if max(inm)>255.

For phased images, the use of the "normal" function is not a problem as these 
images occupy the full range 0-255.
For other images, I don't know if it causes a problem to anybody: the final 
image will be 0-255, whatever the initial image is.
For me, it's not a problem as we can use again the "normal" function to 
adjust the desired range.
So, for me, it's allright to use the normal function, but I don't for the 
other users.

Well, maybe I'm simply asking myself too many questions....

Best regards
Jocelyn


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[SIP-devel] new devel release/ bwlabel

[Ricardo F. <rf...@if...>]

Dear SIP co-developers,

A new significant development version is now released.
The main improvements are:

   + New bwlabel function to label connected components in a binary
   image. It is coded in C for efficiency.

   * Contributions by Jocelyn Druel:
   + New pifilter function that denoises an image without affecting
   abrupt variations.
   + New imroi function to define ROI's (Regions of Interest) using
   the mouse. Until now only rectangular regions are supported.

Grab it here:
http://sourceforge.net/project/showfiles.php?group_id=68055&package_id=67061&release_id=204833

Unfortunately a development release must be compiled from source,
and this currently works best under Linux. Feel free to ask for help
with compilation.

Merry christmas,
Ricardo.

--
  Ricardo Fabbri, Cybernetic Vision Research Group, USP, Brazil.
  www.rfabbri.kit.net

Re: [SIP-devel] function pifilter

[Ricardo F. <rf...@if...>]

On Thu, 18 Dec 2003, DRUEL Jocelyn wrote:

> Hi,
> Still working on phased images (and phase unwrapping), I coded this pi filter
> to get a better unwrapping on poor quality images: it does not smooth the
> phase jumps: it just smooths what's between.
>

Hello,

I have included your pifilter function into SIP-dev, it is working
fine.

It is interesting that I tested the function on natural luminance images
messed up with imnoise, option "salt & pepper".
The result is quite good, because the edges are preserved, more
so than median filtering, although some noises are not fully eliminated.

The idea of treating a normal intensity image as a phase image seems
to makes sense in this case. The pi filter will do an adaptive blur
of the image, with the blur strength somewhat inversely proportional
to the variance of the data around the mean. The most abrupt
variation, the weaker the blur. A variation from maximum to minimum
distributed along the neighbourhood of a pixel will not blur the
pixel.

If you think this makes sense, the function pifilter will be useful not only for
photonics images, but for many other noisy images.

thanks again for contributing,
Ricardo.

--
  Ricardo Fabbri, Cybernetic Vision Research Group, USP, Brazil.
  www.rfabbri.kit.net

Re: [SIP-devel] function imroi

[Ricardo F. <rf...@if...>]

Hi, Jocelyn!

Your function imroi is neat! I have made some minor fixes to the
function and help page,  and included imroi in the newest SIP-devel,
that I shall release by tomorrow.

I'll take a look at your function pifilter now.

Thanks!!

BTW, are you using SIP-dev or sip-0.2.0 binary?

BTW2, when you have a little spare time, you could open a
SourceForge.net account so I can include you as an official developer.
This will be useful as I'm thinking about putting SIP-dev under CVS in
beginning of jannuary, so we can collaborate more effectively and with
more people.

thanks again,
merry Christmas,
Ricardo.


On Mon, 15 Dec 2003, DRUEL Jocelyn wrote:

> Hi,
> Having a look at the ToDo website for SIP, I coded
> a function to select a Region Of Interest (ROI) with the mouse.
>
> It works fine with Scilab-2.7 with gray and color images (with Scilab-2.6,
> there's a little problem of matrix sizes with color images: see manual pages
> to solve it).
>

[SIP-devel] function pifilter

[DRUEL J. <joc...@li...>]

Hi,
Still working on phased images (and phase unwrapping), I coded this pi filter 
to get a better unwrapping on poor quality images: it does not smooth the 
phase jumps: it just smooths what's between.

I send an example of noisy image so that you can test.

Best regards
Jocelyn
 
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[SIP-devel] function imroi

[DRUEL J. <joc...@li...>]

Hi,
Having a look at the ToDo website for SIP, I coded
a function to select a Region Of Interest (ROI) with the mouse.

It works fine with Scilab-2.7 with gray and color images (with Scilab-2.6, 
there's a little problem of matrix sizes with color images: see manual pages 
to solve it).

Best regards
Jocelyn



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Re: [SIP-devel] Problem with color images

[Ricardo F. <rf...@if...>]

Done,

it's in the FAQ.txt file.

thanks for reporting,
Ricardo.


On Fri, 12 Dec 2003, DRUEL Jocelyn wrote:

> Hi,
> My version is SIP-bin-0.2 and scilab 2.6.
>
> I tried with Scilab-2.7 and sip-bin-0.2
> size(A)
> ans =3D
> ! 161 200 3 !
> just like you.
>
> So, there's no problem anymore with this version. All right.
>
> Maybe there can be a line in the README file: something like
>
> Known bugs
> Before acting on color images with Scilab-2.6, it's recommended to perfor=
m
> the following:
> A =3D imread(your_image);
> A(1,1,1)=3DA(1,1,1);
> to get the correct image size.
>
> Or maybe, just a copy the example that I sent.
>
> This could save some time to newcomers in SIP.
>
>
> Best regards
> Jocelyn
>
> Le Jeudi 11 D=E9cembre 2003 21:15, vous avez =E9crit :
> > Very strange...
> >
> > the very same example works with me:
> >
> > A=3Dimread(SIPDIR+=EDmages/ararauna.jpg');
> >
> > size(A)
> >  ans  =3D
> >
> >   !   161.    200.    3. !
> >
> >
> > What version of scilab, SIP and operating system are you using?
> >
> > That test was made under Linux with scilab CVS.
> > If you're using Linux, install the CVS version.
> >
> > cheers,
> > Ricardo.
> >
> > On Thu, 11 Dec 2003, DRUEL Jocelyn wrote:
> > > Hi,
> > > I have a problem with the behaviour of color images:
> > > Let's try:
> > > A=3Dimread(SIPDIR+'images/ararauna.jpg');
> > > B=3DA;
> > > B(1,1,1)=3DA(1,1,1);//this should not change anything
> > > C=3DA.*B;//does not work (incompatibility in sizes)
> > >
> > > It's confirmed by:
> > > size(A)
> > > ! 161 !
> > > ! 200 !
> > > ! 3    !
> > >
> > > and size(B)
> > > ! 161 200 3 !
> > >
> > > If I try this:
> > > D=3Dim2gray(A);
> > > size(D) is
> > > ! 161 200 !
> > >
> > > I think, it would cause less problems if size(A) was directly ! 161 2=
00 3
> > > ! because with the actual configuration, almost any action on A will
> > > modify its size.
> > >
> > > Best regards
> > > Jocelyn
> >
> > Ricardo.
>
>

Ricardo.

--
  Ricardo Fabbri, Cybernetic Vision Research Group, USP, Brazil.
  www.rfabbri.kit.net

Re: [SIP-devel] Problem with color images

[DRUEL J. <joc...@li...>]

Hi,
My version is SIP-bin-0.2 and scilab 2.6.

I tried with Scilab-2.7 and sip-bin-0.2
size(A)
ans =
! 161 200 3 !
just like you.

So, there's no problem anymore with this version. All right.

Maybe there can be a line in the README file: something like 

Known bugs 
Before acting on color images with Scilab-2.6, it's recommended to perform 
the following:
A = imread(your_image);
A(1,1,1)=A(1,1,1);
to get the correct image size.

Or maybe, just a copy the example that I sent.

This could save some time to newcomers in SIP.


Best regards
Jocelyn

Le Jeudi 11 Décembre 2003 21:15, vous avez écrit :
> Very strange...
>
> the very same example works with me:
>
> A=imread(SIPDIR+ímages/ararauna.jpg');
>
> size(A)
>  ans  =
>
>   !   161.    200.    3. !
>
>
> What version of scilab, SIP and operating system are you using?
>
> That test was made under Linux with scilab CVS.
> If you're using Linux, install the CVS version.
>
> cheers,
> Ricardo.
>
> On Thu, 11 Dec 2003, DRUEL Jocelyn wrote:
> > Hi,
> > I have a problem with the behaviour of color images:
> > Let's try:
> > A=imread(SIPDIR+'images/ararauna.jpg');
> > B=A;
> > B(1,1,1)=A(1,1,1);//this should not change anything
> > C=A.*B;//does not work (incompatibility in sizes)
> >
> > It's confirmed by:
> > size(A)
> > ! 161 !
> > ! 200 !
> > ! 3    !
> >
> > and size(B)
> > ! 161 200 3 !
> >
> > If I try this:
> > D=im2gray(A);
> > size(D) is
> > ! 161 200 !
> >
> > I think, it would cause less problems if size(A) was directly ! 161 200 3
> > ! because with the actual configuration, almost any action on A will
> > modify its size.
> >
> > Best regards
> > Jocelyn
>
> Ricardo.

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Re: [SIP-devel] Problem with color images

[Ricardo F. <rf...@if...>]

Very strange...

the very same example works with me:

A=3Dimread(SIPDIR+=EDmages/ararauna.jpg');

size(A)
 ans  =3D

  !   161.    200.    3. !


What version of scilab, SIP and operating system are you using?

That test was made under Linux with scilab CVS.
If you're using Linux, install the CVS version.

cheers,
Ricardo.

On Thu, 11 Dec 2003, DRUEL Jocelyn wrote:

> Hi,
> I have a problem with the behaviour of color images:
> Let's try:
> A=3Dimread(SIPDIR+'images/ararauna.jpg');
> B=3DA;
> B(1,1,1)=3DA(1,1,1);//this should not change anything
> C=3DA.*B;//does not work (incompatibility in sizes)
>
> It's confirmed by:
> size(A)
> ! 161 !
> ! 200 !
> ! 3    !
>
> and size(B)
> ! 161 200 3 !
>
> If I try this:
> D=3Dim2gray(A);
> size(D) is
> ! 161 200 !
>
> I think, it would cause less problems if size(A) was directly ! 161 200 3=
 !
> because with the actual configuration, almost any action on A will
> modify its size.
>
> Best regards
> Jocelyn
>
>

Ricardo.

--
  Ricardo Fabbri, Cybernetic Vision Research Group, USP, Brazil.
  www.rfabbri.kit.net

[SIP-devel] Problem with color images

[DRUEL J. <joc...@li...>]

Hi,
I have a problem with the behaviour of color images:
Let's try:
A=imread(SIPDIR+'images/ararauna.jpg');
B=A;
B(1,1,1)=A(1,1,1);//this should not change anything
C=A.*B;//does not work (incompatibility in sizes)

It's confirmed by:
size(A)
! 161 !
! 200 !
! 3    !

and size(B)
! 161 200 3 !

If I try this:
D=im2gray(A);
size(D) is
! 161 200 !

I think, it would cause less problems if size(A) was directly ! 161 200 3 ! 
because with the actual configuration, almost any action on A will
modify its size.

Best regards
Jocelyn

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[SIP-devel] News

[Ricardo F. <rf...@if...>]

Hello, all,

It was a very busy semester for us all.. specially for me!

But next week I will be developing SIP more intensely (for real!).
I've been happy that people are using SIP a lot: the Sourceforge
activity percentile has been steady over 80%.

If there is any particular functionality that you may need, please let
me know and I'll try hard to code it into SIP.

Happy holydays,
Ricardo.

--
  Ricardo Fabbri, Cybernetic Vision Research Group, USP, Brazil.
  www.rfabbri.kit.net

Re: [SIP-devel] Newbie Welcome!!

[Vitor V. A. S. <vi...@cn...>]

> Hi Vitor,

	Hello Alexix,

> I'm Alexis Calio from Argentina, I study Information
> Engeneering (so to say, idk how to translate it).

	Nice to meet you.

> I'm also on the computer vision field. Actually on
> face recognition. I'm coding a basic face recognition
> toolbox based on labeled graphs and global/local move
> procedures. It's part of my final Project.
> 
> Here goes my apologizes to everyone. When I first
> started (february this year) I didn't know how much
> work it would be to code the ADD-ON toolbox to SIP.
> I'm almost done with it, I hope I can go public soon.

	Well, it seems a good work. I hope to see it
merged to SIP.

> The only help I can give you is telling you that I've
> installed Scilab 2.6 and SIP 0.2 on a RD Linux 7.0
> environment without errors. By the way, shouldn't you
> execute that Loader.sce call within Scilab?

	Well, I have to say I didn't think about to call
the loader from Scilab. Maybe it could work. I found a
solution - helped by prof. Hans from Brazil - to compile
the SIP development source.
	It's working and I'm only starting to learn it and
Scilab to definately ends with my "dependence" upon MATLAB
and Windows. With SIP I'm able to do everything I need with
Linux.
	Thanks for your answer and I wish success in your
Project. Nice to meet you.

	Vitor Vasconcelos

[SIP-devel] Newbie Welcome!!

[<a_...@ya...>]

Hi Vitor,


I'm Alexis Calio from Argentina, I study Information
Engeneering (so to say, idk how to translate it).

I'm also on the computer vision field. Actually on
face recognition. I'm coding a basic face recognition
toolbox based on labeled graphs and global/local move
procedures. It's part of my final Project.

Here goes my apologizes to everyone. When I first
started (february this year) I didn't know how much
work it would be to code the ADD-ON toolbox to SIP.
I'm almost done with it, I hope I can go public soon.

The only help I can give you is telling you that I've
installed Scilab 2.6 and SIP 0.2 on a RD Linux 7.0
environment without errors. By the way, shouldn't you
execute that Loader.sce call within Scilab?


So much for today,

best regards,

Alexis Calio
> Message: 1
> Date: Tue, 30 Sep 2003 10:47:59 -0300
> From: Vitor Vasconcelos Araujo Silva
> <vi...@cn...>
> Organization: CNEN
> To: sip...@li...
> Subject: [SIP-devel] An user in a developers list...
> 
> 	Hi people.
> 
> 	I'm a newbie in Scilab and SIP, but not much in
> Image Processing and 
> Computer Vision. I hope to cooperate in development
> soon, but my first 
> problem is to install the SIP 0.2 in a RedHat 9.0
> Linux. If you could 
> help me, I would be very glad.
> 	The problem description is simple: when I execute
> the command exec 
> ./loader.sce my terminal window closes. My Scilab
> version is 2.7. Thanks 
> in advance.
> 	I am a MSc. student in Computer Science in the
> Image Processing field, 
> mainly in Neutrongraphic images. I wish to cooperate
> with SIP 
> development and would be nice to know how to do it.
> I've been very busy 
> with my work (I'm not a full-time student and I work
> full-time in a 
> company), but I can find some time to work in this
> great project.
> 	So, nice to meet you and hope to help you and be
> helped.
> 	Sorry about my english.
> 
> 	Vitor Vasconcelos
> 	Tecnologista
> 	vi...@cn...
> 


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[SIP-devel] An user in a developers list...

[Vitor V. A. S. <vi...@cn...>]

	Hi people.

	I'm a newbie in Scilab and SIP, but not much in Image Processing and 
Computer Vision. I hope to cooperate in development soon, but my first 
problem is to install the SIP 0.2 in a RedHat 9.0 Linux. If you could 
help me, I would be very glad.
	The problem description is simple: when I execute the command exec 
./loader.sce my terminal window closes. My Scilab version is 2.7. Thanks 
in advance.
	I am a MSc. student in Computer Science in the Image Processing field, 
mainly in Neutrongraphic images. I wish to cooperate with SIP 
development and would be nice to know how to do it. I've been very busy 
with my work (I'm not a full-time student and I work full-time in a 
company), but I can find some time to work in this great project.
	So, nice to meet you and hope to help you and be helped.
	Sorry about my english.

	Vitor Vasconcelos
	Tecnologista
	vi...@cn...

[SIP-devel] roi function

[DRUEL J. <joc...@li...>]

Hi,
I worked a bit on a region of interest function.
Currently, it's working for a rectangular selection on grayscale images.
Just do:
-> mask=imroi(image);

On color images, the display is allright but the mask created is not useable 
immediately:
image.*mask gives an error because of dimensions.

My problem is:
-> image=imread('ararauna.jpg');
-> a=zeros(image);
size(a) and size(image) are coherent.
But if I do:
-> a(10:15,20:34,1:3)=1;//mask creation
then size(a) and size(image) are not coherent anymore and
-> image.*a 
is not working, unfortunately.

I've not written an help file by now, because I'd like to fix this problem 
first.

Best regards
Jocelyn


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[SIP-devel] new animal-devel list

[Ricardo F. <rf...@if...>]

Hi, all,

a new list for the ANIMAL was created.
ANIMAL is AN IMAging Library, written in C language.
It forms the core to the SIP toolbox (http://siptoolbox.sf.net), and
may also be used independently from Scilab and SIP.

I apologize for strange emails you may have received (tests and
nonsense administrative email). Please ignore them.

enjoy,
Ricardo.

--
  Ricardo Fabbri, Cybernetic Vision Research Group, USP, Brazil.
  www.rfabbri.kit.net

[SIP-devel] Unsubscribed from "Animal-devel" mailing list

[<ani...@li...>]

If there is anything you didn't like about the list or the ANIMAL,
please consider sending an e-mail to ric...@us... with
your suggestions.

Re: [SIP-devel] SIP to-do list

[DRUEL J. <joc...@li...>]

Le Jeudi 4 Septembre 2003 13:54, vous avez écrit :
> On Sun, 31 Aug 2003, DRUEL Jocelyn wrote:
> > Hi,
> > Back from holliday in Australia,
>
> Don't need to tell it was fun!

It was wonderful....

>
> > I see you've been active during summer.
> > Great.
>
> I've been quite busy lately with many exams for applying to graduate
> study in Brazil and abroad. It's a pain in the ..., but it should be
> worth the hassle.
>

These are not funny moments....


> > I'm trying to write some documentation (an introductory user manual) for
> > SIP as I believe that the best documentation is not the one written by
> > the main developper (ie Ricardo) but the one written by users.
> >
> > I send you my work, which is very incomplete but a good step (I hope) to
> > start with SIP.
> > I'd like to explain some notions about image treatment in it.
>
> It's a very nice start!!!!!!!! Great!
>
> I've been writing a paper about SIP and Scilab for a linux journal,
> but its too big. I must split it in two. I'll send it directly to you
> because it has some nice image processing examples and other stuff
> that may help with the manual.
>

Thanks for your paper: very interesting. I discovered many things in it.


> I'm sending some suggestions to the manual's draft.
>
> - home page address is:  http://siptoolbox.sourceforge.net
> - demo is now exec(SIPDEMO)
> - should say to put stacksize(3e8) in users ~/.scilab
> - reading/viewing/writing images
> 	- should explain briefly the different image formats and
> 	that it is necessary to rescale an image to 65535 to write it.
> 	(this is really a cumbersome characteristic of SIP, but we
> 	have to rescale the image until integer formats be used)
> 	See the paper on SIP that I wrote. It has a brief explanation
> 	that should help you with the manual.
>
> 	You do explain about this in sec 2.7 but shouldn't it
> 	come before sec. 2.4?
>
> - in sec. 2.8, the command normal(dmat,255,0) should be easily
> rewritten to normal(dmat,255)
> - in Chap 3, the final version of the manual should ideally show the
> result of the operations on sample images.
> - par 3.3 typo (addition or subStraction..); it should be subtraction
>

All right. I reworked on the manual. I tried to fix the above: snapshots and 
a paragraph on colormaps.

It's about 411Ko in pdf format. Tell me if it's too big for the development 
list.

All comments are welcome.

Best regards
Jocelyn



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