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vrf jpg compression

Question asked by VRFuser on Nov 24, 2004

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Don't see why not.

It's odd that Matlab lets you save tiffs with compression (tiff) or without compression (tiffn) but not jpegs. Although even then, the 'with compression' is some default level you have no control over.

-----Original Message-----
From: Shawn Fessenden [mailto:shawn@testech-ltd.com]
Sent: 25 November 2004 01:51 pm
To: VRF
Subject: [vrf] Re: jpg compression

Sounds like it's time to start looking for external libraries. Can you save the image as a raw bitmap & then compress it with something else?
-SHAWN-

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bill.ossmann Nov 23, 2004 8:39 PM
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As far as I can tell, the command you want is

saveas(h,'filename','jpgnn')

where h is the figure number and nn is the jpeg quality factor. I haven't
tried this, though.
--
Bill Ossmann
Philips Ultrasound
e-mail: bill.ossmann@philips.com
------------------------------------------------

I am using Vee 6 and the Matlab included within it. I am saving some
Matlab figures as jpgs within Matlab using the 'saveas' function. Does
anyone know how to invoke the jpg compression control in the Matlab saveas
function so that I can minimise the resulting jpg size?

Ivan Edwards

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VRFuser Nov 23, 2004 11:23 PM
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"><META content="MSHTML 6.00.2800.1458" name=GENERATOR></HEAD><BODY><DIV><FONT face=Arial size=2><SPAN class=361521515-24112004>I am using Vee 6 and the Matlab included within it. I am saving some Matlab figures as jpgs within Matlab using the 'saveas' function. Does anyone know how to invoke the jpg compression control in the Matlab saveas function so that I can minimise the resulting jpg size?</SPAN></FONT></DIV><P><FONT face="Courier New" size=2>Ivan Edwards</FONT> </P>---<BR>You are currently subscribed to vrf as: rsb@soco.agilent.com<BR>To subscribe send a blank email to "join-vrf@it.lists.it.agilent.com".<BR>To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".<BR>To send messages to this mailing list, email "vrf@agilent.com". <BR>If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".</BODY></HTML>
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VRFuser Nov 24, 2004 3:51 PM
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML xmlns="http://www.w3.org/TR/REC-html40" xmlns:o = "urn:schemas-microsoft-com:office:office" xmlns:w = "urn:schemas-microsoft-com:office:word"><HEAD><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ks_c_5601-1987"><LINK href="cid:filelist.xml@01C4D341.FF7F6310" rel=File-List><STYLE>@font-face { font-family: ;}@font-face { font-family: ;}@font-face { font-family: @;}@font-face { font-family: @;}@page {mso-page-border-surround-header: no; mso-page-border-surround-footer: no; }@page Section1 {size: 595.3pt 841.9pt; margin: 99.25pt 3.0cm 3.0cm 3.0cm; mso-header-margin: 42.55pt; mso-footer-margin: 49.6pt; mso-paper-source: 0; layout-grid: 18.0pt; }P.MsoNormal { TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: ; TEXT-ALIGN: justify; mso-bidi-font-size: 12.0pt; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman"; mso-style-parent: ""; mso-pagination: none; mso-font-kerning: 1.0pt}LI.MsoNormal { TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: ; TEXT-ALIGN: justify; mso-bidi-font-size: 12.0pt; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman"; mso-style-parent: ""; mso-pagination: none; mso-font-kerning: 1.0pt}DIV.MsoNormal { TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: ; TEXT-ALIGN: justify; mso-bidi-font-size: 12.0pt; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman"; mso-style-parent: ""; mso-pagination: none; mso-font-kerning: 1.0pt}A:link { COLOR: blue; TEXT-DECORATION: underline; text-underline: single}SPAN.MsoHyperlink { COLOR: blue; TEXT-DECORATION: underline; text-underline: single}A:visited { COLOR: purple; TEXT-DECORATION: underline; text-underline: single}SPAN.MsoHyperlinkFollowed { COLOR: purple; TEXT-DECORATION: underline; text-underline: single}SPAN.EmailStyle17 { COLOR: windowtext; FONT-FAMILY: ; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-style-type: personal-compose; mso-style-noshow: yes; mso-ansi-font-size: 10.0pt; mso-ascii-font-family: ; mso-fareast-font-family: }SPAN.SpellE { mso-style-name: ""; mso-spl-e: yes}SPAN.GramE { mso-style-name: ""; mso-gram-e: yes}DIV.Section1 { page: Section1}</STYLE><META content="MSHTML 6.00.2800.1476" name=GENERATOR></HEAD><BODY lang=KO style="tab-interval: 40.0pt" vLink=purple link=blue><DIV><FONT face=Arial color=#0000ff size=2><SPAN class=448030014-25112004>> <FONT face= size=2><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">Any one please <SPAN class=GramE>advise</SPAN> me how to transfer data between ADS and VEE?</SPAN></FONT></SPAN></FONT></DIV><DIV><FONT face=Arial color=#0000ff size=2><SPAN class=448030014-25112004><FONT face= size=2><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial"></SPAN></FONT></SPAN></FONT> </DIV><DIV><SPAN class=448030014-25112004><FONT face=Arial color=#0000ff size=2>What is ADS?</FONT></SPAN></DIV><DIV><SPAN class=448030014-25112004><FONT face=Arial color=#0000ff size=2>-SHAWN-</FONT></SPAN></DIV><DIV><SPAN class=448030014-25112004></SPAN> </DIV>---<BR>You are currently subscribed to vrf as: rsb@soco.agilent.com<BR>To subscribe send a blank email to "join-vrf@it.lists.it.agilent.com".<BR>To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".<BR>To send messages to this mailing list, email "vrf@agilent.com". <BR>If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".</BODY></HTML>
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VRFuser Nov 24, 2004 4:08 PM
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Hmmm, just get "unsupported format or extension" error.

Any other offers?

-----Original Message-----
From: bill.ossmann@philips.com [mailto:bill.ossmann@philips.com]
Sent: 24 November 2004 05:39 pm
To: VRF
Subject: [vrf] Re: jpg compression

As far as I can tell, the command you want is

saveas(h,'filename','jpgnn')

where h is the figure number and nn is the jpeg quality factor. I haven't
tried this, though.
--
Bill Ossmann
Philips Ultrasound
e-mail: bill.ossmann@philips.com
------------------------------------------------

I am using Vee 6 and the Matlab included within it. I am saving some
Matlab figures as jpgs within Matlab using the 'saveas' function. Does
anyone know how to invoke the jpg compression control in the Matlab saveas
function so that I can minimise the resulting jpg size?

Ivan Edwards

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VRFuser Nov 24, 2004 4:56 PM
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Hmmm, just get "unsupported format or extension" error.

Any other offers?

-----Original Message-----
From: bill.ossmann@philips.com [mailto:bill.ossmann@philips.com]
Sent: 24 November 2004 05:39 pm
To: VRF
Subject: [vrf] Re: jpg compression

As far as I can tell, the command you want is

saveas(h,'filename','jpgnn')

where h is the figure number and nn is the jpeg quality factor. I haven't
tried this, though.
--
Bill Ossmann
Philips Ultrasound
e-mail: bill.ossmann@philips.com
------------------------------------------------

I am using Vee 6 and the Matlab included within it. I am saving some
Matlab figures as jpgs within Matlab using the 'saveas' function. Does
anyone know how to invoke the jpg compression control in the Matlab saveas
function so that I can minimise the resulting jpg size?

Ivan Edwards

---
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VRFuser Nov 24, 2004 5:47 PM
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VRFuser Nov 24, 2004 6:24 PM
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We are using an ActiveX of Iocomp (http://www.iocomp.com/) in order to show a RF matix. Specifically the LedMatrix. You can download and test it.

Regards

> -----Mensaje original-----
> De: MALPHURS,STEVE (A-Sonoma,ex1) [mailto:steve_malphurs@agilent.com]
> Enviado el: mircoles, 24 de noviembre de 2004 22:04
> Para: VRF
> Asunto: [vrf] Integrating graphical buttons with images
>
>
> Hello VRF,
>
> I am creating a control panel for a RF switch matrix. I want
> to show the block diagram of the matrix and then be able to
> click on the graphic image of the individual switch to change
> the switch setting. I can create the buttons that have the
> two images for the open and closed switch positions, but the
> problem is integrating these buttons with the rest of the
> block diagram image. The best I can do is set the background
> image of a panel with my block diagram and then place the
> buttons in their correct positions, however, the lines do not
> quite line up. Does anyone have any suggestions on how this
> might be done?
>
> Regards,
> Steve Malphurs
>
>
> ---
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VRFuser Nov 24, 2004 6:27 PM
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Ah, not tried that one before...unfortunately, I just get a blank jpg created. Ho, hum.

-----Original Message-----
From: Graeme Hilton [mailto:GHilton@slb.com]
Sent: 25 November 2004 10:24 am
To: VRF
Cc: Ivan Edwards
Subject: [vrf] Re: jpg compression

Maybe you need to use the imwrite function (see attached).

imwrite(A,filename,'jpeg','Quality',50)
(Not tested)

Hope this helps.

--
Graeme Hilton
Product Engineer

Schlumberger Sensa
www.sensa.org

Ivan Edwards wrote the following:
> Hmmm, just get "unsupported format or extension" error.
>
> Any other offers?
>
> -----Original Message-----
> From: bill.ossmann@philips.com [mailto:bill.ossmann@philips.com]
> Sent: 24 November 2004 05:39 pm
> To: VRF
> Subject: [vrf] Re: jpg compression
>
>
>
>
>
>
> As far as I can tell, the command you want is
>
> saveas(h,'filename','jpgnn')
>
> where h is the figure number and nn is the jpeg quality factor. I haven't
> tried this, though.
> --
> Bill Ossmann
> Philips Ultrasound
> e-mail: bill.ossmann@philips.com
> ------------------------------------------------
>
>
>
> I am using Vee 6 and the Matlab included within it. I am saving some
> Matlab figures as jpgs within Matlab using the 'saveas' function. Does
> anyone know how to invoke the jpg compression control in the Matlab saveas
> function so that I can minimise the resulting jpg size?
>
>
> Ivan Edwards

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VRFuser Nov 24, 2004 9:35 PM
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Ah, not tried that one before...unfortunately, I just get a blank jpg created. Ho, hum.

-----Original Message-----
From: Graeme Hilton [mailto:GHilton@slb.com]
Sent: 25 November 2004 10:24 am
To: VRF
Cc: Ivan Edwards
Subject: [vrf] Re: jpg compression

Maybe you need to use the imwrite function (see attached).

imwrite(A,filename,'jpeg','Quality',50)
(Not tested)

Hope this helps.

--
Graeme Hilton
Product Engineer

Schlumberger Sensa
www.sensa.org

Ivan Edwards wrote the following:
> Hmmm, just get "unsupported format or extension" error.
>
> Any other offers?
>
> -----Original Message-----
> From: bill.ossmann@philips.com [mailto:bill.ossmann@philips.com]
> Sent: 24 November 2004 05:39 pm
> To: VRF
> Subject: [vrf] Re: jpg compression
>
>
>
>
>
>
> As far as I can tell, the command you want is
>
> saveas(h,'filename','jpgnn')
>
> where h is the figure number and nn is the jpeg quality factor. I haven't
> tried this, though.
> --
> Bill Ossmann
> Philips Ultrasound
> e-mail: bill.ossmann@philips.com
> ------------------------------------------------
>
>
>
> I am using Vee 6 and the Matlab included within it. I am saving some
> Matlab figures as jpgs within Matlab using the 'saveas' function. Does
> anyone know how to invoke the jpg compression control in the Matlab saveas
> function so that I can minimise the resulting jpg size?
>
>
> Ivan Edwards

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