Problem with Scion for ImageJ Live Capture

[bob fleming (RI)]

Dear Imagers,

It used to be possible to control a Sony camera through a Scion CG-7
board using the package Scion for ImageJ which incorporates a
"Live_Capture" plug-in.  This facility no longer seems to work.  Even
with Live_capture.class and Live_Capture.java obviously resident in the
plug-ins folder, ImageJ returns the message "Live_Capture plug-in not
found".

What could this simple biologist be doing wrong?

(Using Windows XP and ImageJ1.36b)

Many thanks,

Bob

Bob Fleming
Bone Biology Group
Roslin Institute
Scotland, UK
tel [phone]
fax [phone]
URL: www.roslin.ac.uk

The information contained in this e-mail (including any attachments) is
confidential and is intended for the use of the addressee only.   The
opinions expressed within this e-mail (including any attachments) are
the opinions of the sender and do not necessarily constitute those of
Roslin Institute (Edinburgh) ("the Institute") unless specifically
stated by a sender who is duly authorised to do so on behalf of the
Institute.

[Robert Baer]

I'm not familiar with this board and plug-in, but the Scion digital cameras
require installed Twain support for Java in addition to the Scion plug-in.

Could this also be necessary, but missing, in your case?

____________________________
Robert W. Baer, Ph.D.
Associate Professor
Department of Physiology
A. T. Still University of Health Science
800 W. Jefferson St.
Kirksville, MO 63501-1497 USA

----- Original Message -----
From: "bob fleming (RI)" <[hidden email]>
To: <[hidden email]>
Sent: Wednesday, October 04, 2006 11:23 AM
Subject: Problem with Scion for ImageJ Live Capture


Dear Imagers,

It used to be possible to control a Sony camera through a Scion CG-7
board using the package Scion for ImageJ which incorporates a
"Live_Capture" plug-in.  This facility no longer seems to work.  Even
with Live_capture.class and Live_Capture.java obviously resident in the
plug-ins folder, ImageJ returns the message "Live_Capture plug-in not
found".

What could this simple biologist be doing wrong?

(Using Windows XP and ImageJ1.36b)

Many thanks,

Bob

Bob Fleming
Bone Biology Group
Roslin Institute
Scotland, UK
tel [phone]
fax [phone]
URL: www.roslin.ac.uk

The information contained in this e-mail (including any attachments) is
confidential and is intended for the use of the addressee only.   The
opinions expressed within this e-mail (including any attachments) are
the opinions of the sender and do not necessarily constitute those of
Roslin Institute (Edinburgh) ("the Institute") unless specifically
stated by a sender who is duly authorised to do so on behalf of the
Institute.

[Wayne Rasband]

> It used to be possible to control a Sony camera through a Scion CG-7
> board using the package Scion for ImageJ which incorporates a
> "Live_Capture" plug-in.  This facility no longer seems to work.  Even
> with Live_capture.class and Live_Capture.java obviously resident in
> the plug-ins folder, ImageJ returns the message "Live_Capture
> plug-in not found".
>
> What could this simple biologist be doing wrong?

A .class file used by the Live_Capture plugin is probably missing. Try
upgrading to ImageJ 1.37k or later. You will then get a better error
message that looks something like this:

        Plugin or class not found: "Live_Capture"
        (java.lang.NoClassDefFoundError: LiveCaptureHelper)

where LiveCaptureHelper.class is the actual missing file.

-wayne

[bob fleming (RI)]

 

-----Original Message-----
From: ImageJ Interest Group [mailto:[hidden email]] On Behalf Of
Wayne Rasband
Sent: 05 October 2006 14:38
To: [hidden email]
Subject: Re: Problem with Scion for ImageJ Live Capture

> It used to be possible to control a Sony camera through a Scion CG-7
> board using the package Scion for ImageJ which incorporates a
> "Live_Capture" plug-in.  This facility no longer seems to work.  Even
> with Live_capture.class and Live_Capture.java obviously resident in
> the plug-ins folder, ImageJ returns the message "Live_Capture plug-in
> not found".
>
> What could this simple biologist be doing wrong?

A .class file used by the Live_Capture plugin is probably missing. Try
upgrading to ImageJ 1.37k or later. You will then get a better error
message that looks something like this:

        Plugin or class not found: "Live_Capture"
        (java.lang.NoClassDefFoundError: LiveCaptureHelper)

where LiveCaptureHelper.class is the actual missing file.

-wayne

[bob fleming (RI)]

Dear Wayne,

Thankyou for your help.

The more accurate error message now reads
"java.lang.NoClassDefFoundError: scion/fg/capture/export_listener" (when
trying to run the plug-in "Live_Capture")

OR

"......./fg_manager" (when trying to run "Capture_Greyscale"),


But unfortunately, I cannot find these class files on the ImageJ
website. Where can they be found?

Many thanks,

Bob

-----Original Message-----
From: ImageJ Interest Group [mailto:[hidden email]] On Behalf Of
Wayne Rasband
Sent: 05 October 2006 14:38
To: [hidden email]
Subject: Re: Problem with Scion for ImageJ Live Capture

> It used to be possible to control a Sony camera through a Scion CG-7
> board using the package Scion for ImageJ which incorporates a
> "Live_Capture" plug-in.  This facility no longer seems to work.  Even
> with Live_capture.class and Live_Capture.java obviously resident in
> the plug-ins folder, ImageJ returns the message "Live_Capture plug-in
> not found".
>
> What could this simple biologist be doing wrong?

A .class file used by the Live_Capture plugin is probably missing. Try
upgrading to ImageJ 1.37k or later. You will then get a better error
message that looks something like this:

        Plugin or class not found: "Live_Capture"
        (java.lang.NoClassDefFoundError: LiveCaptureHelper)

where LiveCaptureHelper.class is the actual missing file.

-wayne

[Yu, Ming-Jiun (NIH/NHLBI) [F]]

Hi,
Could anyone instruct me how to use the macro getLine(x1,y1,x2,y2,line
width)?  I have a line selection and would like to get the coordinates
and line length.  Thank you.
Brad

[dscho]

Hi,

On Thu, 5 Oct 2006, Yu, Ming-Jiun (NIH/NHLBI) [F] wrote:

> Could anyone instruct me how to use the macro getLine(x1,y1,x2,y2,line
> width)?  I have a line selection and would like to get the coordinates
> and line length.  Thank you.

getLine(x1, y1, x2, y2, width);
print("first point: (" + x1 + ", " + y1 + ")");
print("2nd point: (" + x2 + ", " + y2 + ")");
dx = x1 - x2;
dy = y1 - y2;
length = sqrt(dx * dx + dy * dy);
print("length: " + length);

Hth,
Dscho

[Yu, Ming-Jiun (NIH/NHLBI) [F]]

Thank you Johannes and Wayne,
With your help, I have finished the job.  See the below macro, which
rotates a line selection at an input angle and puts out intensity
profiles.  Can anyone show me how to print numbers in separate columns
in the log window?  The last part of the macro below lists number
continuously... Thank you again.
Brad

// RotateLineSelection.txt
//
// Rotates a line selection by a specified angle.
//
// Users draw a line selection on an active image.
// Run the macro and specify an angle to rotate.

macro "Rotate Line Selection" {

// Ask for rotating angle and determine the turns
angle = getNumber("Angle: ", 60)*PI/180;
turn = 2*PI/angle;

// Find the center by using getLine() and the beginning angle
id=getImageID;
getLine(x1, y1, x2, y2, width);
dx = x1 - x2;
dy = y1 - y2;
r = sqrt(dx * dx + dy * dy);
a = atan2(dy, dx);

// Determine new x2, y2 based on the input angle
for (i=0; i<turn; i++) {
selectImage(id);
b = angle*(i);
x2=x1+r*cos(a+b-PI);
y2=y1+r*sin(a+b-PI);

// Make a new line selection and plot pixel intensity
makeLine(x1,y1,x2,y2);
run("Plot Profile");

selectImage(id);
profile=getProfile();
for (j=0; j<profile.length; j++) {
print(j+"  "+profile[j]);
}
}
}

-----Original Message-----
From: Johannes Schindelin [mailto:[hidden email]]
Sent: Thursday, October 05, 2006 1:06 PM
To: List IMAGEJ
Subject: Re: getLine


Hi,

On Thu, 5 Oct 2006, Yu, Ming-Jiun (NIH/NHLBI) [F] wrote:

> Could anyone instruct me how to use the macro getLine(x1,y1,x2,y2,line

> width)?  I have a line selection and would like to get the coordinates

> and line length.  Thank you.

getLine(x1, y1, x2, y2, width);
print("first point: (" + x1 + ", " + y1 + ")");
print("2nd point: (" + x2 + ", " + y2 + ")");
dx = x1 - x2;
dy = y1 - y2;
length = sqrt(dx * dx + dy * dy);
print("length: " + length);

Hth,
Dscho

[Wayne Rasband]

Write the output to the Results table. You can also speed up the macro
a lot by not displaying the profile plots.

   // Generates radial profiles and saves them in the Results table
   getLine(x1, y1, x2, y2, width);
   if (x1<0) exit("Straight line selection required");
   angle = getNumber("Angle: ", 60)*PI/180;
   turn = 2*PI/angle;
   dx = x1 - x2;
   dy = y1 - y2;
   r = sqrt(dx * dx + dy * dy);
   a = atan2(dy, dx);
   for (i=0; i<turn; i++) {
      b = angle*i;
      x2=x1+r*cos(a+b);
      y2=y1+r*sin(a+b);
      makeLine(x1,y1,x2,y2);
      profile=getProfile();
      //run("Draw");
      //wait(250);
      for (j=0; j<profile.length; j++)
         setResult(round(b*180/PI), j, profile[j]);
   }
   updateResults;

-wayne


On Oct 5, 2006, at 5:00 PM, Wayne Rasband wrote:

> Thank you Johannes and Wayne,
> With your help, I have finished the job.  See the below macro, which
> rotates a line selection at an input angle and puts out intensity
> profiles.  Can anyone show me how to print numbers in separate columns
> in the log window?  The last part of the macro below lists number
> continuously... Thank you again.
> Brad
>
> // RotateLineSelection.txt
> //
> // Rotates a line selection by a specified angle.
> //
> // Users draw a line selection on an active image.
> // Run the macro and specify an angle to rotate.
>
> macro "Rotate Line Selection" {
>
> // Ask for rotating angle and determine the turns
> angle = getNumber("Angle: ", 60)*PI/180;
> turn = 2*PI/angle;
>
> // Find the center by using getLine() and the beginning angle
> id=getImageID;
> getLine(x1, y1, x2, y2, width);
> dx = x1 - x2;
> dy = y1 - y2;
> r = sqrt(dx * dx + dy * dy);
> a = atan2(dy, dx);
>
> // Determine new x2, y2 based on the input angle
> for (i=0; i<turn; i++) {
> selectImage(id);
> b = angle*(i);
> x2=x1+r*cos(a+b-PI);
> y2=y1+r*sin(a+b-PI);
>
> // Make a new line selection and plot pixel intensity
> makeLine(x1,y1,x2,y2);
> run("Plot Profile");
>
> selectImage(id);
> profile=getProfile();
> for (j=0; j<profile.length; j++) {
> print(j+"  "+profile[j]);
> }
> }
> }
>
> -----Original Message-----
> From: Johannes Schindelin [mailto:[log in to unmask]]
> Sent: Thursday, October 05, 2006 1:06 PM
> To: List IMAGEJ
> Subject: Re: getLine
>
>
> Hi,
>
> On Thu, 5 Oct 2006, Yu, Ming-Jiun (NIH/NHLBI) [F] wrote:
>
> > Could anyone instruct me how to use the macro
> getLine(x1,y1,x2,y2,line
>
> > width)?  I have a line selection and would like to get the
> coordinates
>
> > and line length.  Thank you.
>
> getLine(x1, y1, x2, y2, width);
> print("first point: (" + x1 + ", " + y1 + ")");
> print("2nd point: (" + x2 + ", " + y2 + ")");
> dx = x1 - x2;
> dy = y1 - y2;
> length = sqrt(dx * dx + dy * dy);
> print("length: " + length);
>
> Hth,
> Dscho
>