Thread View: comp.graphics.apps.paint-shop-pro
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7 total messages
Started by Richard
Fri, 08 Mar 2002 21:45
jpg exif and jfif compliant
Author: Richard
Date: Fri, 08 Mar 2002 21:45
Date: Fri, 08 Mar 2002 21:45
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hello what is the diference in a jpg jfif or exif compliant--------- there is only one thing l noticed----------- when opening a jpg file in php6.....lets say of 300ppp and 20 x 15, if is a jfif compliant it opens at that size ( l check it at the image size tool) but if l open that file in exif compliant it will give another values..??�� like 72ppp and bigger size---------- very strange----------- by the way, when l open the exif compliant in paintshop it will be at his real size at 300ppp----------but it will thinks is a jfif-------- so starting to know the exif thing----------lt only makes complications---- somebody knows about this??
Re: jpg exif and jfif compliant
Author: Francisco Bernal
Date: Fri, 08 Mar 2002 22:26
Date: Fri, 08 Mar 2002 22:26
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JFIF es el formato de imagen que emplea un algoritmo de compresi�n llamado JPG. Por metonimia ha dado en llamar jpg al formato. Richard wrote: > > hello > what is the diference in a jpg jfif or exif compliant--------- > there is only one thing l noticed----------- > when opening a jpg file in php6.....lets say of 300ppp and 20 x 15, > if is a jfif compliant it opens at that size ( l check it at the image size > tool) > but if l open that file in exif compliant it will give another values..??�� > like 72ppp and bigger size---------- very strange----------- > > by the way, when l open the exif compliant in paintshop it will be > at his real size at 300ppp----------but it will thinks is a jfif-------- > > so starting to know the exif thing----------lt only makes complications---- > somebody knows about this??
Re: jpg exif and jfif compliant
Author: Kris Zaklika
Date: Fri, 08 Mar 2002 22:38
Date: Fri, 08 Mar 2002 22:38
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Richard wrote: > > hello > what is the diference in a jpg jfif or exif compliant--------- > there is only one thing l noticed----------- > when opening a jpg file in php6.....lets say of 300ppp and 20 x 15, > if is a jfif compliant it opens at that size ( l check it at the image size > tool) > but if l open that file in exif compliant it will give another values..??�� > like 72ppp and bigger size---------- very strange----------- > > by the way, when l open the exif compliant in paintshop it will be > at his real size at 300ppp----------but it will thinks is a jfif-------- > > so starting to know the exif thing----------lt only makes complications---- > somebody knows about this?? JFIF and EXIF both use the discrete cosine transform to compress images in a lossy fashion. They differ in the sort of additional information that is stored in the file. Read about JFIF here: http://www.w3.org/Graphics/JPEG/ http://www.ijg.org/ Read about EXIF here: http://www.exif.org/ http://www.pima.net/standards/it10/PIMA15740/exif.htm -- ---------------------------------------------------------------------- Kris Zaklika Jasc Software, Inc. The Product Ideas: ideas@jasc.com Power Customer Service: customer.service@jasc.com To Technical Support: techsup@jasc.com Create ----------------------------------------------------------------------
Re: jpg exif and jfif compliant
Author: Richard
Date: Fri, 08 Mar 2002 22:46
Date: Fri, 08 Mar 2002 22:46
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jpg puede ser jfif o exif compliant------------ "Francisco Bernal" <pacorosso@ono.com> escribi� en el mensaje news:3C893F17.33E59E0F@ono.com... > JFIF es el formato de imagen que emplea un algoritmo de compresi�n > llamado JPG. Por metonimia ha dado en llamar jpg al formato. > > Richard wrote: > > > > hello > > what is the diference in a jpg jfif or exif compliant--------- > > there is only one thing l noticed----------- > > when opening a jpg file in php6.....lets say of 300ppp and 20 x 15, > > if is a jfif compliant it opens at that size ( l check it at the image size > > tool) > > but if l open that file in exif compliant it will give another values..??�� > > like 72ppp and bigger size---------- very strange----------- > > > > by the way, when l open the exif compliant in paintshop it will be > > at his real size at 300ppp----------but it will thinks is a jfif-------- > > > > so starting to know the exif thing----------lt only makes complications---- > > somebody knows about this??
Re: jpg exif and jfif compliant
Author: Ken Stephens
Date: Sun, 10 Mar 2002 18:25
Date: Sun, 10 Mar 2002 18:25
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EXIF files carry not only the image information itself, but also information concerning when the image was taken, f-stop, etc. That information is provided by the digital camera itself. For example, Fuji digital cameras use EXIF software. Be forewarned: some EXIF software (including that provided by Fuji) can be distinctly user UN-friendly. Heaven forbid if you ever have to uninstall the software and reinstall it. I had to do that once and experienced terrible customer support from Fuji. In order to use my camera, I had to buy a SmartMedia reader that plugs into my USB port. That solved my problem (but, of course, I do not use EXIF features now). "Richard" <RICHARD_BURCH@terra.es> wrote in message news:a6bb9h$gp8$1@talia.mad.ttd.net... > hello > what is the diference in a jpg jfif or exif compliant--------- > there is only one thing l noticed----------- > when opening a jpg file in php6.....lets say of 300ppp and 20 x 15, > if is a jfif compliant it opens at that size ( l check it at the image size > tool) > but if l open that file in exif compliant it will give another values..??�� > like 72ppp and bigger size---------- very strange----------- > > by the way, when l open the exif compliant in paintshop it will be > at his real size at 300ppp----------but it will thinks is a jfif-------- > > so starting to know the exif thing----------lt only makes complications---- > somebody knows about this?? > >
Re: jpg exif and jfif compliant
Author: Maka P�rez
Date: Mon, 11 Mar 2002 09:05
Date: Mon, 11 Mar 2002 09:05
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Please, NO crossposting! Thanks Maka "Richard" <RICHARD_BURCH@terra.es> escribi� en el mensaje news:a6bb9h$gp8$1@talia.mad.ttd.net... > hello > what is the diference in a jpg jfif or exif compliant--------- > there is only one thing l noticed----------- > when opening a jpg file in php6.....lets say of 300ppp and 20 x 15, > if is a jfif compliant it opens at that size ( l check it at the image size > tool) > but if l open that file in exif compliant it will give another values..??�� > like 72ppp and bigger size---------- very strange----------- > > by the way, when l open the exif compliant in paintshop it will be > at his real size at 300ppp----------but it will thinks is a jfif-------- > > so starting to know the exif thing----------lt only makes complications---- > somebody knows about this?? > >
Re: jpg exif and jfif compliant
Author: Juan Carlos
Date: Tue, 12 Mar 2002 20:25
Date: Tue, 12 Mar 2002 20:25
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si en esta pagina no aclaran no lo aclara nadie. http://www.ijg.org/ Juan Carlos "Richard" <RICHARD_BURCH@terra.es> escribi� en el mensaje news:a6bb9h$gp8$1@talia.mad.ttd.net... > hello > what is the diference in a jpg jfif or exif compliant--------- > there is only one thing l noticed----------- > when opening a jpg file in php6.....lets say of 300ppp and 20 x 15, > if is a jfif compliant it opens at that size ( l check it at the image size > tool) > but if l open that file in exif compliant it will give another values..??�� > like 72ppp and bigger size---------- very strange----------- > > by the way, when l open the exif compliant in paintshop it will be > at his real size at 300ppp----------but it will thinks is a jfif-------- > > so starting to know the exif thing----------lt only makes complications---- > somebody knows about this?? > >
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